文章概述

机械设备的维护是工业生产中的关键环节，科学合理的维护周期直接影响设备的可靠性、使用寿命和生产效率。机械设备维护周期计算器通过综合考虑设备类型、使用强度、工作环境、历史故障率等多个因素，计算出最优的维护周期和维护方案，帮助企业和工程师科学制定维护计划，降低维护成本，提高设备可用性。

机械设备维护周期计算器在实际应用中有广泛的用途。在工业制造中，需要根据设备特性制定维护计划以保证生产连续性。在设备管理中，需要优化维护资源分配以降低成本。在故障预防中，需要根据设备状态预测故障并提前维护。在成本控制中，需要在保证可靠性的前提下最小化维护成本。在安全管理中，需要通过定期维护确保设备安全运行。

本文将深入探讨如何在KMP（Kotlin Multiplatform）框架下实现一套完整的机械设备维护周期计算器，并展示如何在OpenHarmony鸿蒙平台上进行跨端调用。我们将提供多种维护计算功能，包括维护周期计算、维护成本分析、故障预测等，帮助工程师科学管理设备维护。

工具功能详解

核心功能

功能1：维护周期计算（Maintenance Interval Calculation）

根据设备类型、使用强度、工作环境计算最优的维护周期。这是制定维护计划的基础。

功能特点：

• 支持多种设备类型
• 考虑使用强度影响
• 基于工作环境调整
• 返回详细的维护周期

功能2：维护任务规划（Maintenance Task Planning）

根据维护周期和设备特性规划具体的维护任务。

功能特点：

• 生成维护任务清单
• 指定维护人员和工具
• 估算维护时间
• 提供维护步骤

功能3：维护成本分析（Maintenance Cost Analysis）

计算不同维护方案的成本，帮助选择最经济的方案。

功能特点：

• 计算人工成本
• 计算零件成本
• 计算停机成本
• 返回成本明细

功能4：故障预测和风险评估（Failure Prediction and Risk Assessment）

根据设备历史数据预测故障风险。

功能特点：

• 分析故障历史
• 评估故障风险
• 预测故障时间
• 提供预防建议

功能5：维护效果评估（Maintenance Effectiveness Assessment）

评估维护方案的效果和ROI。

功能特点：

• 计算设备可用性
• 分析维护效率
• 评估成本效益
• 提供改进建议

Kotlin实现

完整的Kotlin代码实现

/**
 * 机械设备维护周期计算器 - KMP OpenHarmony
 * 提供设备维护计算的多种功能
 */
object MaintenanceScheduleUtils {
    
    // 设备维护周期基准（小时）
    private val baseMaintenanceIntervals = mapOf(
        "电动机" to 500.0,
        "泵" to 400.0,
        "压缩机" to 300.0,
        "风机" to 600.0,
        "传送带" to 400.0,
        "齿轮箱" to 350.0,
        "液压系统" to 250.0,
        "轴承" to 300.0
    )
    
    // 设备故障率数据（故障/小时）
    private val failureRates = mapOf(
        "电动机" to 0.0001,
        "泵" to 0.00015,
        "压缩机" to 0.0002,
        "风机" to 0.00008,
        "传送带" to 0.00012,
        "齿轮箱" to 0.00018,
        "液压系统" to 0.00025,
        "轴承" to 0.00014
    )
    
    /**
     * 功能1：维护周期计算
     */
    fun calculateMaintenanceInterval(
        equipmentType: String,
        usageIntensity: Double,
        workEnvironment: String
    ): Double {
        val baseInterval = baseMaintenanceIntervals[equipmentType] ?: 400.0
        
        // 使用强度系数（0.5-2.0）
        val intensityFactor = when {
            usageIntensity < 0.5 -> 1.5
            usageIntensity < 1.0 -> 1.2
            usageIntensity < 1.5 -> 1.0
            else -> 0.8
        }
        
        // 工作环境系数
        val environmentFactor = when (workEnvironment) {
            "恶劣" to 0.6,
            "一般" to 0.8,
            "良好" to 1.0,
            "极好" to 1.2
        }.let { it[workEnvironment] ?: 1.0 }
        
        return baseInterval * intensityFactor * environmentFactor
    }
    
    /**
     * 功能2：维护任务规划
     */
    fun planMaintenanceTasks(
        equipmentType: String,
        maintenanceType: String = "定期"
    ): Map<String, Any> {
        val tasks = mutableMapOf<String, Any>()
        
        val taskList = when (equipmentType) {
            "电动机" -> listOf(
                "检查绝缘电阻",
                "清洁散热片",
                "检查轴承温度",
                "润滑轴承",
                "检查接线柱"
            ),
            "泵" -> listOf(
                "检查泵体密封",
                "检查流量和压力",
                "润滑轴承",
                "检查叶轮磨损",
                "更换密封垫"
            ),
            "压缩机" -> listOf(
                "检查进气过滤器",
                "检查油位",
                "检查冷却效果",
                "清洁散热器",
                "检查安全阀"
            ),
            else -> listOf(
                "外观检查",
                "性能测试",
                "润滑维护",
                "清洁维护",
                "紧固件检查"
            )
        }
        
        tasks["设备类型"] = equipmentType
        tasks["维护类型"] = maintenanceType
        tasks["任务清单"] = taskList
        tasks["预计时间"] = "${taskList.size * 30}分钟"
        tasks["所需工具"] = listOf("扳手", "螺丝刀", "润滑油", "清洁布", "万用表")
        
        return tasks
    }
    
    /**
     * 功能3：维护成本分析
     */
    fun analyzeMaintenceCost(
        equipmentType: String,
        maintenanceInterval: Double,
        laborCostPerHour: Double = 100.0,
        partsCost: Double = 500.0,
        downtime: Double = 2.0
    ): Map<String, Any> {
        val analysis = mutableMapOf<String, Any>()
        
        // 人工成本
        val laborCost = maintenanceInterval * laborCostPerHour / 60.0
        
        // 停机成本（假设每小时损失1000元）
        val downtimeCost = downtime * 1000.0
        
        // 总成本
        val totalCost = laborCost + partsCost + downtimeCost
        
        // 年度成本（假设年工作8000小时）
        val annualMaintenance = (8000.0 / maintenanceInterval).toInt()
        val annualCost = totalCost * annualMaintenance
        
        analysis["设备类型"] = equipmentType
        analysis["维护周期"] = "${maintenanceInterval.toInt()}小时"
        analysis["人工成本"] = String.format("%.2f元", laborCost)
        analysis["零件成本"] = String.format("%.2f元", partsCost)
        analysis["停机成本"] = String.format("%.2f元", downtimeCost)
        analysis["单次维护成本"] = String.format("%.2f元", totalCost)
        analysis["年度维护次数"] = annualMaintenance
        analysis["年度维护成本"] = String.format("%.2f元", annualCost)
        
        return analysis
    }
    
    /**
     * 功能4：故障预测和风险评估
     */
    fun assessFailureRisk(
        equipmentType: String,
        operatingHours: Double,
        lastMaintenanceHours: Double
    ): Map<String, Any> {
        val assessment = mutableMapOf<String, Any>()
        
        val failureRate = failureRates[equipmentType] ?: 0.0001
        val hoursSinceLastMaintenance = operatingHours - lastMaintenanceHours
        
        // 故障概率
        val failureProbability = 1.0 - Math.exp(-failureRate * hoursSinceLastMaintenance)
        
        // 风险等级
        val riskLevel = when {
            failureProbability < 0.1 -> "低"
            failureProbability < 0.3 -> "中"
            failureProbability < 0.6 -> "高"
            else -> "极高"
        }
        
        // 预计故障时间
        val expectedFailureTime = lastMaintenanceHours + (1.0 / failureRate) * Math.log(1.0 / (1.0 - failureProbability.coerceIn(0.0, 0.99)))
        
        assessment["设备类型"] = equipmentType
        assessment["运行小时数"] = operatingHours.toInt()
        assessment["上次维护后"] = String.format("%.1f小时", hoursSinceLastMaintenance)
        assessment["故障概率"] = String.format("%.2f%%", failureProbability * 100)
        assessment["风险等级"] = riskLevel
        assessment["预计故障时间"] = String.format("%.1f小时", expectedFailureTime)
        assessment["建议"] = when (riskLevel) {
            "低" -> "继续正常运行，按计划维护"
            "中" -> "加强监测，准备维护"
            "高" -> "立即安排维护"
            else -> "立即停机维护，防止故障"
        }
        
        return assessment
    }
    
    /**
     * 功能5：维护效果评估
     */
    fun assessMaintenanceEffectiveness(
        equipmentType: String,
        totalOperatingHours: Double,
        failureCount: Int,
        maintenanceCount: Int,
        maintenanceCost: Double,
        productionLoss: Double
    ): Map<String, Any> {
        val assessment = mutableMapOf<String, Any>()
        
        // 设备可用性
        val availability = (totalOperatingHours - (failureCount * 2.0)) / totalOperatingHours
        
        // 维护效率
        val maintenanceEfficiency = (maintenanceCount.toDouble() - failureCount) / maintenanceCount
        
        // 成本效益
        val costBenefit = productionLoss / maintenanceCost
        
        // MTBF（平均故障间隔时间）
        val mtbf = if (failureCount > 0) totalOperatingHours / failureCount else totalOperatingHours
        
        assessment["设备类型"] = equipmentType
        assessment["总运行小时数"] = totalOperatingHours.toInt()
        assessment["故障次数"] = failureCount
        assessment["维护次数"] = maintenanceCount
        assessment["设备可用性"] = String.format("%.2f%%", availability * 100)
        assessment["维护效率"] = String.format("%.2f%%", maintenanceEfficiency * 100)
        assessment["MTBF"] = String.format("%.1f小时", mtbf)
        assessment["维护成本"] = String.format("%.2f元", maintenanceCost)
        assessment["生产损失"] = String.format("%.2f元", productionLoss)
        assessment["成本效益比"] = String.format("%.2f", costBenefit)
        
        return assessment
    }
    
    /**
     * 生成完整的维护方案
     */
    fun generateCompletePlan(
        equipmentType: String,
        usageIntensity: Double,
        workEnvironment: String,
        operatingHours: Double
    ): Map<String, Any> {
        val plan = mutableMapOf<String, Any>()
        
        val interval = calculateMaintenanceInterval(equipmentType, usageIntensity, workEnvironment)
        plan["维护周期"] = String.format("%.0f小时", interval)
        
        val tasks = planMaintenanceTasks(equipmentType)
        plan["维护任务"] = tasks
        
        val cost = analyzeMaintenceCost(equipmentType, interval)
        plan["成本分析"] = cost
        
        val risk = assessFailureRisk(equipmentType, operatingHours, operatingHours - interval)
        plan["风险评估"] = risk
        
        return plan
    }
}

// 使用示例
fun main() {
    println("KMP OpenHarmony 机械设备维护周期计算器演示\n")
    
    // 电动机维护方案
    println("=== 电动机维护方案 ===")
    val motorInterval = MaintenanceScheduleUtils.calculateMaintenanceInterval("电动机", 1.0, "一般")
    println("维护周期: ${motorInterval.toInt()}小时\n")
    
    val motorTasks = MaintenanceScheduleUtils.planMaintenanceTasks("电动机")
    println("维护任务:")
    motorTasks.forEach { (k, v) -> println("  $k: $v") }
    println()
    
    // 成本分析
    println("=== 维护成本分析 ===")
    val motorCost = MaintenanceScheduleUtils.analyzeMaintenceCost("电动机", motorInterval)
    motorCost.forEach { (k, v) -> println("  $k: $v") }
    println()
    
    // 故障风险评估
    println("=== 故障风险评估 ===")
    val motorRisk = MaintenanceScheduleUtils.assessFailureRisk("电动机", 5000.0, 4500.0)
    motorRisk.forEach { (k, v) -> println("  $k: $v") }
}

Kotlin实现的详细说明

Kotlin实现提供了五个核心功能。维护周期计算基于设备基准周期，考虑使用强度和工作环境的影响。维护任务规划根据设备类型生成具体的维护任务清单。维护成本分析计算人工、零件和停机成本。故障预测使用故障率数据评估风险。维护效果评估分析维护方案的效果和ROI。

JavaScript实现

完整的JavaScript代码实现

/**
 * 机械设备维护周期计算器 - JavaScript版本
 */
class MaintenanceScheduleJS {
    static baseMaintenanceIntervals = {
        '电动机': 500.0,
        '泵': 400.0,
        '压缩机': 300.0,
        '风机': 600.0,
        '传送带': 400.0,
        '齿轮箱': 350.0,
        '液压系统': 250.0,
        '轴承': 300.0
    };
    
    static failureRates = {
        '电动机': 0.0001,
        '泵': 0.00015,
        '压缩机': 0.0002,
        '风机': 0.00008,
        '传送带': 0.00012,
        '齿轮箱': 0.00018,
        '液压系统': 0.00025,
        '轴承': 0.00014
    };
    
    /**
     * 功能1：维护周期计算
     */
    static calculateMaintenanceInterval(equipmentType, usageIntensity, workEnvironment) {
        const baseInterval = this.baseMaintenanceIntervals[equipmentType] || 400.0;
        
        let intensityFactor;
        if (usageIntensity < 0.5) intensityFactor = 1.5;
        else if (usageIntensity < 1.0) intensityFactor = 1.2;
        else if (usageIntensity < 1.5) intensityFactor = 1.0;
        else intensityFactor = 0.8;
        
        const environmentFactors = {
            '恶劣': 0.6,
            '一般': 0.8,
            '良好': 1.0,
            '极好': 1.2
        };
        
        const environmentFactor = environmentFactors[workEnvironment] || 1.0;
        
        return baseInterval * intensityFactor * environmentFactor;
    }
    
    /**
     * 功能2：维护任务规划
     */
    static planMaintenanceTasks(equipmentType, maintenanceType = '定期') {
        const tasks = {};
        
        const taskLists = {
            '电动机': [
                '检查绝缘电阻',
                '清洁散热片',
                '检查轴承温度',
                '润滑轴承',
                '检查接线柱'
            ],
            '泵': [
                '检查泵体密封',
                '检查流量和压力',
                '润滑轴承',
                '检查叶轮磨损',
                '更换密封垫'
            ],
            '压缩机': [
                '检查进气过滤器',
                '检查油位',
                '检查冷却效果',
                '清洁散热器',
                '检查安全阀'
            ]
        };
        
        const taskList = taskLists[equipmentType] || [
            '外观检查',
            '性能测试',
            '润滑维护',
            '清洁维护',
            '紧固件检查'
        ];
        
        tasks['设备类型'] = equipmentType;
        tasks['维护类型'] = maintenanceType;
        tasks['任务清单'] = taskList;
        tasks['预计时间'] = (taskList.length * 30) + '分钟';
        tasks['所需工具'] = ['扳手', '螺丝刀', '润滑油', '清洁布', '万用表'];
        
        return tasks;
    }
    
    /**
     * 功能3：维护成本分析
     */
    static analyzeMaintenceCost(equipmentType, maintenanceInterval, laborCostPerHour = 100.0, partsCost = 500.0, downtime = 2.0) {
        const analysis = {};
        
        const laborCost = maintenanceInterval * laborCostPerHour / 60.0;
        const downtimeCost = downtime * 1000.0;
        const totalCost = laborCost + partsCost + downtimeCost;
        
        const annualMaintenance = Math.floor(8000.0 / maintenanceInterval);
        const annualCost = totalCost * annualMaintenance;
        
        analysis['设备类型'] = equipmentType;
        analysis['维护周期'] = Math.floor(maintenanceInterval) + '小时';
        analysis['人工成本'] = laborCost.toFixed(2) + '元';
        analysis['零件成本'] = partsCost.toFixed(2) + '元';
        analysis['停机成本'] = downtimeCost.toFixed(2) + '元';
        analysis['单次维护成本'] = totalCost.toFixed(2) + '元';
        analysis['年度维护次数'] = annualMaintenance;
        analysis['年度维护成本'] = annualCost.toFixed(2) + '元';
        
        return analysis;
    }
    
    /**
     * 功能4：故障预测和风险评估
     */
    static assessFailureRisk(equipmentType, operatingHours, lastMaintenanceHours) {
        const assessment = {};
        
        const failureRate = this.failureRates[equipmentType] || 0.0001;
        const hoursSinceLastMaintenance = operatingHours - lastMaintenanceHours;
        
        const failureProbability = 1.0 - Math.exp(-failureRate * hoursSinceLastMaintenance);
        
        let riskLevel;
        if (failureProbability < 0.1) riskLevel = '低';
        else if (failureProbability < 0.3) riskLevel = '中';
        else if (failureProbability < 0.6) riskLevel = '高';
        else riskLevel = '极高';
        
        const expectedFailureTime = lastMaintenanceHours + (1.0 / failureRate) * Math.log(1.0 / (1.0 - Math.min(failureProbability, 0.99)));
        
        assessment['设备类型'] = equipmentType;
        assessment['运行小时数'] = Math.floor(operatingHours);
        assessment['上次维护后'] = hoursSinceLastMaintenance.toFixed(1) + '小时';
        assessment['故障概率'] = (failureProbability * 100).toFixed(2) + '%';
        assessment['风险等级'] = riskLevel;
        assessment['预计故障时间'] = expectedFailureTime.toFixed(1) + '小时';
        assessment['建议'] = riskLevel === '低' ? '继续正常运行，按计划维护' : 
                            riskLevel === '中' ? '加强监测，准备维护' :
                            riskLevel === '高' ? '立即安排维护' : '立即停机维护，防止故障';
        
        return assessment;
    }
    
    /**
     * 功能5：维护效果评估
     */
    static assessMaintenanceEffectiveness(equipmentType, totalOperatingHours, failureCount, maintenanceCount, maintenanceCost, productionLoss) {
        const assessment = {};
        
        const availability = (totalOperatingHours - (failureCount * 2.0)) / totalOperatingHours;
        const maintenanceEfficiency = (maintenanceCount - failureCount) / maintenanceCount;
        const costBenefit = productionLoss / maintenanceCost;
        const mtbf = failureCount > 0 ? totalOperatingHours / failureCount : totalOperatingHours;
        
        assessment['设备类型'] = equipmentType;
        assessment['总运行小时数'] = Math.floor(totalOperatingHours);
        assessment['故障次数'] = failureCount;
        assessment['维护次数'] = maintenanceCount;
        assessment['设备可用性'] = (availability * 100).toFixed(2) + '%';
        assessment['维护效率'] = (maintenanceEfficiency * 100).toFixed(2) + '%';
        assessment['MTBF'] = mtbf.toFixed(1) + '小时';
        assessment['维护成本'] = maintenanceCost.toFixed(2) + '元';
        assessment['生产损失'] = productionLoss.toFixed(2) + '元';
        assessment['成本效益比'] = costBenefit.toFixed(2);
        
        return assessment;
    }
    
    /**
     * 生成完整的维护方案
     */
    static generateCompletePlan(equipmentType, usageIntensity, workEnvironment, operatingHours) {
        const plan = {};
        
        const interval = this.calculateMaintenanceInterval(equipmentType, usageIntensity, workEnvironment);
        plan['维护周期'] = Math.floor(interval) + '小时';
        
        const tasks = this.planMaintenanceTasks(equipmentType);
        plan['维护任务'] = tasks;
        
        const cost = this.analyzeMaintenceCost(equipmentType, interval);
        plan['成本分析'] = cost;
        
        const risk = this.assessFailureRisk(equipmentType, operatingHours, operatingHours - interval);
        plan['风险评估'] = risk;
        
        return plan;
    }
}

// 导出供Node.js使用
if (typeof module !== 'undefined' && module.exports) {
    module.exports = MaintenanceScheduleJS;
}

JavaScript实现的详细说明

JavaScript版本充分利用了JavaScript的计算和对象功能。维护周期计算使用基准周期和调整系数。维护任务规划根据设备类型生成任务清单。维护成本分析计算各项成本。故障预测使用指数分布模型。维护效果评估分析关键指标。

ArkTS调用实现

完整的ArkTS代码实现

/**
 * 机械设备维护周期计算器 - ArkTS版本（OpenHarmony鸿蒙）
 */
import { webview } from '@kit.ArkWeb';
import { common } from '@kit.AbilityKit';

@Entry
@Component
struct MaintenanceSchedulePage {
    @State equipmentType: string = '电动机';
    @State usageIntensity: string = '1.0';
    @State workEnvironment: string = '一般';
    @State operatingHours: string = '5000';
    @State result: string = '';
    @State selectedTool: string = '完整方案';
    @State isLoading: boolean = false;
    @State allResults: string = '';
    
    private baseMaintenanceIntervals: Record<string, number> = {
        '电动机': 500.0,
        '泵': 400.0,
        '压缩机': 300.0,
        '风机': 600.0,
        '传送带': 400.0,
        '齿轮箱': 350.0
    };
    
    private failureRates: Record<string, number> = {
        '电动机': 0.0001,
        '泵': 0.00015,
        '压缩机': 0.0002,
        '风机': 0.00008,
        '传送带': 0.00012,
        '齿轮箱': 0.00018
    };
    
    webviewController: webview.WebviewController = new webview.WebviewController();
    
    calculateMaintenanceInterval(equipmentType: string, usageIntensity: number, workEnvironment: string): number {
        const baseInterval = this.baseMaintenanceIntervals[equipmentType] || 400.0;
        
        let intensityFactor;
        if (usageIntensity < 0.5) intensityFactor = 1.5;
        else if (usageIntensity < 1.0) intensityFactor = 1.2;
        else if (usageIntensity < 1.5) intensityFactor = 1.0;
        else intensityFactor = 0.8;
        
        const environmentFactors: Record<string, number> = {
            '恶劣': 0.6,
            '一般': 0.8,
            '良好': 1.0,
            '极好': 1.2
        };
        
        const environmentFactor = environmentFactors[workEnvironment] || 1.0;
        
        return baseInterval * intensityFactor * environmentFactor;
    }
    
    planMaintenanceTasks(equipmentType: string): string {
        const taskLists: Record<string, string[]> = {
            '电动机': [
                '检查绝缘电阻',
                '清洁散热片',
                '检查轴承温度',
                '润滑轴承',
                '检查接线柱'
            ],
            '泵': [
                '检查泵体密封',
                '检查流量和压力',
                '润滑轴承',
                '检查叶轮磨损',
                '更换密封垫'
            ]
        };
        
        const taskList = taskLists[equipmentType] || [
            '外观检查',
            '性能测试',
            '润滑维护',
            '清洁维护',
            '紧固件检查'
        ];
        
        let result = `维护任务清单:\n`;
        taskList.forEach((task, index) => {
            result += `${index + 1}. ${task}\n`;
        });
        result += `\n预计时间: ${taskList.length * 30}分钟\n`;
        result += `所需工具: 扳手、螺丝刀、润滑油、清洁布、万用表`;
        
        return result;
    }
    
    analyzeMaintenceCost(equipmentType: string, maintenanceInterval: number): string {
        const laborCostPerHour = 100.0;
        const partsCost = 500.0;
        const downtime = 2.0;
        
        const laborCost = maintenanceInterval * laborCostPerHour / 60.0;
        const downtimeCost = downtime * 1000.0;
        const totalCost = laborCost + partsCost + downtimeCost;
        
        const annualMaintenance = Math.floor(8000.0 / maintenanceInterval);
        const annualCost = totalCost * annualMaintenance;
        
        let result = `维护成本分析:\n`;
        result += `维护周期: ${Math.floor(maintenanceInterval)}小时\n`;
        result += `人工成本: ${laborCost.toFixed(2)}元\n`;
        result += `零件成本: ${partsCost.toFixed(2)}元\n`;
        result += `停机成本: ${downtimeCost.toFixed(2)}元\n`;
        result += `单次维护成本: ${totalCost.toFixed(2)}元\n`;
        result += `年度维护次数: ${annualMaintenance}次\n`;
        result += `年度维护成本: ${annualCost.toFixed(2)}元`;
        
        return result;
    }
    
    assessFailureRisk(equipmentType: string, operatingHours: number, lastMaintenanceHours: number): string {
        const failureRate = this.failureRates[equipmentType] || 0.0001;
        const hoursSinceLastMaintenance = operatingHours - lastMaintenanceHours;
        
        const failureProbability = 1.0 - Math.exp(-failureRate * hoursSinceLastMaintenance);
        
        let riskLevel;
        if (failureProbability < 0.1) riskLevel = '低';
        else if (failureProbability < 0.3) riskLevel = '中';
        else if (failureProbability < 0.6) riskLevel = '高';
        else riskLevel = '极高';
        
        let result = `故障风险评估:\n`;
        result += `运行小时数: ${Math.floor(operatingHours)}\n`;
        result += `上次维护后: ${hoursSinceLastMaintenance.toFixed(1)}小时\n`;
        result += `故障概率: ${(failureProbability * 100).toFixed(2)}%\n`;
        result += `风险等级: ${riskLevel}\n`;
        result += `建议: `;
        
        if (riskLevel === '低') result += '继续正常运行，按计划维护';
        else if (riskLevel === '中') result += '加强监测，准备维护';
        else if (riskLevel === '高') result += '立即安排维护';
        else result += '立即停机维护，防止故障';
        
        return result;
    }
    
    generateCompletePlan(equipmentType: string, usageIntensity: number, workEnvironment: string, operatingHours: number): string {
        const interval = this.calculateMaintenanceInterval(equipmentType, usageIntensity, workEnvironment);
        
        let result = `=== ${equipmentType}维护完整方案 ===\n\n`;
        result += `维护周期: ${Math.floor(interval)}小时\n\n`;
        result += this.planMaintenanceTasks(equipmentType) + '\n\n';
        result += this.analyzeMaintenceCost(equipmentType, interval) + '\n\n';
        result += this.assessFailureRisk(equipmentType, operatingHours, operatingHours - interval);
        
        return result;
    }
    
    async executeCalculation() {
        this.isLoading = true;
        
        try {
            const intensity = parseFloat(this.usageIntensity);
            const hours = parseFloat(this.operatingHours);
            
            if (isNaN(intensity) || isNaN(hours) || intensity <= 0 || hours <= 0) {
                this.result = '请输入有效的数值';
                this.isLoading = false;
                return;
            }
            
            let result = '';
            switch (this.selectedTool) {
                case '维护周期':
                    const interval = this.calculateMaintenanceInterval(this.equipmentType, intensity, this.workEnvironment);
                    result = `维护周期: ${Math.floor(interval)}小时`;
                    break;
                case '维护任务':
                    result = this.planMaintenanceTasks(this.equipmentType);
                    break;
                case '成本分析':
                    const interval2 = this.calculateMaintenanceInterval(this.equipmentType, intensity, this.workEnvironment);
                    result = this.analyzeMaintenceCost(this.equipmentType, interval2);
                    break;
                case '完整方案':
                    result = this.generateCompletePlan(this.equipmentType, intensity, this.workEnvironment, hours);
                    break;
            }
            
            this.result = result;
            this.allResults = `完整维护方案:\n${this.generateCompletePlan(this.equipmentType, intensity, this.workEnvironment, hours)}`;
        } catch (error) {
            this.result = '执行错误：' + error;
        }
        
        this.isLoading = false;
    }
    
    build() {
        Column() {
            Row() {
                Text('机械设备维护周期计算器')
                    .fontSize(24)
                    .fontWeight(FontWeight.Bold)
                    .fontColor(Color.White)
            }
            .width('100%')
            .height(60)
            .backgroundColor('#1565C0')
            .justifyContent(FlexAlign.Center)
            
            Scroll() {
                Column({ space: 16 }) {
                    Column() {
                        Text('设备类型:')
                            .fontSize(14)
                            .fontWeight(FontWeight.Bold)
                            .width('100%')
                        
                        Select([
                            { value: '电动机' },
                            { value: '泵' },
                            { value: '压缩机' },
                            { value: '风机' },
                            { value: '传送带' },
                            { value: '齿轮箱' }
                        ])
                            .value(this.equipmentType)
                            .onSelect((index: number, value: string) => {
                                this.equipmentType = value;
                            })
                            .width('100%')
                    }
                    .width('100%')
                    .padding(12)
                    .backgroundColor('#E3F2FD')
                    .borderRadius(8)
                    
                    Column() {
                        Text('使用强度 (0.5-2.0):')
                            .fontSize(14)
                            .fontWeight(FontWeight.Bold)
                            .width('100%')
                        
                        TextInput({ placeholder: '请输入使用强度' })
                            .value(this.usageIntensity)
                            .onChange((value: string) => {
                                this.usageIntensity = value;
                            })
                            .width('100%')
                            .height(60)
                            .padding(8)
                            .backgroundColor(Color.White)
                            .borderRadius(4)
                    }
                    .width('100%')
                    .padding(12)
                    .backgroundColor('#E3F2FD')
                    .borderRadius(8)
                    
                    Column() {
                        Text('工作环境:')
                            .fontSize(14)
                            .fontWeight(FontWeight.Bold)
                            .width('100%')
                        
                        Select([
                            { value: '恶劣' },
                            { value: '一般' },
                            { value: '良好' },
                            { value: '极好' }
                        ])
                            .value(this.workEnvironment)
                            .onSelect((index: number, value: string) => {
                                this.workEnvironment = value;
                            })
                            .width('100%')
                    }
                    .width('100%')
                    .padding(12)
                    .backgroundColor('#E3F2FD')
                    .borderRadius(8)
                    
                    Column() {
                        Text('运行小时数:')
                            .fontSize(14)
                            .fontWeight(FontWeight.Bold)
                            .width('100%')
                        
                        TextInput({ placeholder: '请输入运行小时数' })
                            .value(this.operatingHours)
                            .onChange((value: string) => {
                                this.operatingHours = value;
                            })
                            .width('100%')
                            .height(60)
                            .padding(8)
                            .backgroundColor(Color.White)
                            .borderRadius(4)
                    }
                    .width('100%')
                    .padding(12)
                    .backgroundColor('#E3F2FD')
                    .borderRadius(8)
                    
                    Column() {
                        Text('选择工具:')
                            .fontSize(14)
                            .fontWeight(FontWeight.Bold)
                            .width('100%')
                        
                        Select([
                            { value: '维护周期' },
                            { value: '维护任务' },
                            { value: '成本分析' },
                            { value: '完整方案' }
                        ])
                            .value(this.selectedTool)
                            .onSelect((index: number, value: string) => {
                                this.selectedTool = value;
                            })
                            .width('100%')
                    }
                    .width('100%')
                    .padding(12)
                    .backgroundColor('#E3F2FD')
                    .borderRadius(8)
                    
                    if (this.result) {
                        Column() {
                            Text('结果:')
                                .fontSize(14)
                                .fontWeight(FontWeight.Bold)
                                .width('100%')
                            
                            Text(this.result)
                                .fontSize(12)
                                .width('100%')
                                .padding(8)
                                .backgroundColor('#F5F5F5')
                                .borderRadius(4)
                        }
                        .width('100%')
                        .padding(12)
                        .backgroundColor('#F5F5F5')
                        .borderRadius(8)
                    }
                    
                    if (this.allResults) {
                        Column() {
                            Text('完整方案:')
                                .fontSize(14)
                                .fontWeight(FontWeight.Bold)
                                .width('100%')
                            
                            Text(this.allResults)
                                .fontSize(12)
                                .width('100%')
                                .padding(8)
                                .backgroundColor('#E8F5E9')
                                .borderRadius(4)
                        }
                        .width('100%')
                        .padding(12)
                        .backgroundColor('#E8F5E9')
                        .borderRadius(8)
                    }
                    
                    Button('计算维护方案')
                        .width('100%')
                        .onClick(() => this.executeCalculation())
                        .enabled(!this.isLoading)
                    
                    if (this.isLoading) {
                        LoadingProgress()
                            .width(40)
                            .height(40)
                    }
                }
                .width('100%')
                .padding(16)
            }
            .layoutWeight(1)
        }
        .width('100%')
        .height('100%')
        .backgroundColor('#FAFAFA')
    }
}

ArkTS实现的详细说明

ArkTS版本为OpenHarmony鸿蒙平台提供了完整的用户界面。通过@State装饰器，我们可以管理应用的状态。这个实现包含了设备类型、使用强度、工作环境、运行小时数等输入框，工具选择和结果显示功能。用户可以输入设备参数，选择不同的计算工具，查看维护方案计算结果。

应用场景分析

1. 工业制造和生产

在工业制造中，需要根据设备特性制定维护计划以保证生产连续性。制造企业使用维护周期计算器来优化设备管理。

2. 设备管理和维护

在设备管理中，需要优化维护资源分配以降低成本。维护部门使用维护周期计算器来制定维护计划。

3. 故障预防和风险管理

在故障预防中，需要根据设备状态预测故障并提前维护。工程师使用维护周期计算器来进行风险评估。

4. 成本控制和效益分析

在成本控制中，需要在保证可靠性的前提下最小化维护成本。管理人员使用维护周期计算器来分析成本效益。

5. 安全管理和合规

在安全管理中，需要通过定期维护确保设备安全运行。安全部门使用维护周期计算器来制定安全维护计划。

性能优化建议

1. 缓存设备数据

对于常用的设备类型，可以缓存维护参数以提高性能。

2. 优化计算算法

使用更高级的故障预测模型可以获得更准确的预测。

3. 批量计算

对于多个设备的维护方案，可以批量计算以提高效率。

4. 数据库存储

将设备和维护历史数据存储在数据库中，便于分析和改进。

总结

机械设备维护周期计算器是工业设备管理中的重要工具。通过在KMP框架下实现这套工具，我们可以在多个平台上使用同一套代码，提高开发效率。这个工具提供了维护周期计算、维护任务规划、成本分析、故障预测和效果评估等多种功能，可以满足大多数工业应用的需求。

在OpenHarmony鸿蒙平台上，我们可以通过ArkTS调用这些工具，为工程师和管理人员提供完整的维护管理体验。掌握这套工具，不仅能够帮助企业科学管理设备维护，更重要的是能够在实际项目中灵活应用，解决成本控制、故障预防等实际问题。