本文選題：起重機(jī)械 + RCM�。� 參考：《東北大學(xué)》2011年碩士論文

【摘要】：起重機(jī)械是機(jī)械設(shè)備中事故后果嚴(yán)重的特種機(jī)械設(shè)備之一,國(guó)內(nèi)外每年都有因維修不當(dāng)造成大量的財(cái)產(chǎn)損失和人身傷害事故。對(duì)起重機(jī)械選擇最佳的維修方式和針對(duì)該維修方式確定最佳的維修間隔期以達(dá)到最經(jīng)濟(jì)可靠的維修效果成為現(xiàn)代設(shè)備維修的重點(diǎn)。本文通過對(duì)當(dāng)前我國(guó)起重機(jī)械現(xiàn)行維修模式和國(guó)內(nèi)外設(shè)備維修模式的發(fā)展歷程的分析與比較,采用了目前國(guó)際上比較流行的設(shè)備維修方式—以可靠性為中心的維修,對(duì)起重機(jī)械設(shè)備進(jìn)行維修策略研究。 本文基于層次分析法和蒙特卡羅模擬找出了起重機(jī)械設(shè)備中的重要部件,然后將FMEA和FTA分析相結(jié)合進(jìn)行了重要部件的故障模式和影響分析,建立了重要部件的FMEA分析表格。 考慮起重機(jī)械結(jié)構(gòu)復(fù)雜以及維修方式選擇的主觀性和模糊性,本文提出了基于蒙特卡羅模擬的綜合評(píng)判法,該方法首先采用層次分析法計(jì)算影響設(shè)備維修方式選擇的所有影響因素的權(quán)重,建立各種因素的優(yōu)先級(jí)排序；然后利用模糊判斷法,建立維修方式對(duì)適用度的評(píng)估模型；最后應(yīng)用蒙特卡羅仿真的方法同時(shí)改變各因素的權(quán)重值,統(tǒng)計(jì)各維修方式的適用度排序,根據(jù)各維修方式適用度排序的概率值確定最佳的維修方式。該方法需要的主觀數(shù)據(jù)比較少,同時(shí)增加維修方式適用度排序的魯棒性,降低主觀判斷的影響,能夠準(zhǔn)確的實(shí)現(xiàn)各維修方式對(duì)主梁的適用度評(píng)估。 針對(duì)起重機(jī)械設(shè)備制動(dòng)器的工作特點(diǎn)建立了制動(dòng)器在有限工作時(shí)間下不完全維修的維修模型,然后根據(jù)設(shè)備的經(jīng)濟(jì)性準(zhǔn)則和可用度準(zhǔn)則分別計(jì)算制動(dòng)器的最佳維修間隔周期,利用模糊決策的絕對(duì)比較法計(jì)算設(shè)備在這兩類準(zhǔn)則相結(jié)合下的最佳檢測(cè)間隔期,然后檢驗(yàn)在該間隔期下制動(dòng)器是否滿足可靠度的要求。建立了主梁的視情維修模型,首先利用貝葉斯方法估計(jì)了主梁從開始工作發(fā)展到潛在故障時(shí)間和從潛在故障發(fā)展到功能故障時(shí)間分別滿足的分布形式和分布參數(shù)。然后分別建立了首次檢測(cè)間隔期和重復(fù)檢測(cè)間隔期的求解模型,計(jì)算了設(shè)備在滿足可靠度的情況下實(shí)現(xiàn)最小維修費(fèi)用和最大可用度的檢測(cè)間隔期。
[Abstract]:Hoisting machinery is one of the most serious special mechanical equipment in the mechanical equipment . There is a large amount of property damage and personal injury caused by improper maintenance at home and abroad . The best maintenance mode for the crane machinery and the best maintenance interval for the maintenance mode are the key points of modern equipment maintenance . This paper adopts the current maintenance mode of the crane machinery in China and the maintenance mode of equipment maintenance at home and abroad , and carries out maintenance strategy research on the lifting appliance equipment with reliability as the center .

Based on the analytic hierarchy process and Monte Carlo simulation , this paper finds out the important parts in the equipment of hoisting machinery , and then combines FMEA and FTA analysis for the failure mode and influence analysis of important parts , and establishes FMEA analysis table of important parts .

Considering the complicated structure of the crane and the subjective and fuzzy of the maintenance mode selection , this paper presents a comprehensive evaluation method based on Monte Carlo simulation . First , the weight of all the influencing factors influencing the equipment maintenance mode is calculated by using the analytic hierarchy process , and the priority ranking of various factors is established .
Secondly , the fuzzy judgement method is used to establish the evaluation model of the maintenance mode to the application degree .
In the end , the method of Monte Carlo simulation is applied to change the weight value of each factor , and the optimal maintenance mode is determined according to the probability value of each maintenance mode . The method needs less subjective data , meanwhile increases the robustness of the application degree ordering of the maintenance mode , reduces the influence of subjective judgement , and can accurately realize the evaluation of the application degree of each maintenance mode on the main beam .

According to the working characteristics of the brake of the lifting machinery equipment , the maintenance model of the brake under the limited working time is established , and the optimal maintenance interval period of the brake is calculated according to the economic criterion and the availability criterion of the equipment . The distribution form and the distribution parameters of the equipment under the combination of the two types of criteria are calculated according to the economic criterion and the availability criterion of the equipment . The model of the initial detection interval and the repeated detection interval is firstly established , and the detection interval between the minimum maintenance cost and the maximum availability is calculated under the condition of meeting reliability .
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH21;TH17

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本文編號(hào)：2013247