發(fā)布時(shí)間：2018-08-08 13:53

【摘要】：起重機(jī)是現(xiàn)代社會(huì)工程施工中非常重要的設(shè)備之一,特別是汽車起重機(jī),由于其具有機(jī)動(dòng)性好、轉(zhuǎn)移迅速、起重量范圍大等優(yōu)點(diǎn),隨著我國(guó)經(jīng)濟(jì)建設(shè)的飛速發(fā)展,其需求量越來(lái)越大,對(duì)其性能要求也越來(lái)越高。變幅系統(tǒng)作為起重機(jī)的重要子系統(tǒng)之一,其動(dòng)態(tài)性能的好壞直接影響到整個(gè)起重機(jī)的性能。以往液壓系統(tǒng)的設(shè)計(jì)均依靠經(jīng)驗(yàn)和類比的方法,然后通過(guò)樣機(jī)來(lái)檢驗(yàn)設(shè)計(jì)是否合理。這樣既花費(fèi)了大量的時(shí)間和精力,又存在巨大的風(fēng)險(xiǎn)。通過(guò)對(duì)液壓系統(tǒng)的仿真分析,可以在設(shè)計(jì)初期就發(fā)現(xiàn)不合理之處,減少設(shè)計(jì)的彎路和損失,縮短設(shè)計(jì)周期,提高效率。 本文主要對(duì)50噸汽車起重機(jī)的變幅系統(tǒng)進(jìn)行了分析和基于AMESim軟件對(duì)其進(jìn)行建模仿真,對(duì)不同工況下的仿真結(jié)果進(jìn)行了分析,重點(diǎn)對(duì)影響變幅性能的主要元件——平衡閥的相關(guān)物理量進(jìn)行了分析研究,論證了其在變幅系統(tǒng)中的重要作用。同時(shí),通過(guò)實(shí)驗(yàn)和仿真的對(duì)比分析,檢驗(yàn)了仿真模型的準(zhǔn)確性,進(jìn)而論述了仿真技術(shù)在液壓系統(tǒng)設(shè)計(jì)中的重要作用。
[Abstract]:Crane is one of the most important equipment in modern social engineering construction, especially automobile crane. Because of its advantages of good mobility, rapid transfer and large lifting weight, with the rapid development of economic construction in China, crane is one of the most important equipment in modern social engineering construction. Its demand is more and more large, its performance request is also more and more high. As one of the important subsystems of crane, the dynamic performance of the system directly affects the performance of the whole crane. In the past, the design of hydraulic system depended on experience and analogy, and then the prototype was used to verify whether the design was reasonable or not. This not only cost a lot of time and energy, but also a huge risk. Through the simulation analysis of hydraulic system, the unreasonable points can be found at the beginning of design, which can reduce the curve and loss of design, shorten the design cycle and improve the efficiency. In this paper, the amplitude change system of 50 ton truck crane is analyzed and modeled based on AMESim software, and the simulation results under different working conditions are analyzed. The related physical quantities of the balance valve, which is the main component affecting the amplitude change performance, are analyzed and studied, and its important role in the amplitude change system is demonstrated. At the same time, the accuracy of the simulation model is tested through the contrast analysis between the experiment and the simulation, and the important role of the simulation technology in the hydraulic system design is discussed.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH213.6

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

1 趙鋒;裝載機(jī)全液壓轉(zhuǎn)向系統(tǒng)機(jī)液聯(lián)合仿真與實(shí)驗(yàn)研究[D];吉林大學(xué);2012年

2 崔竹君;百米登高平臺(tái)消防車變幅系統(tǒng)仿真研究[D];大連理工大學(xué);2012年

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本文編號(hào)：2171988