本文關鍵詞：汽車起重機液壓系統(tǒng)的多平臺CAE研究　出處：《沈陽建筑大學》2012年碩士論文　論文類型：學位論文

  更多相關文章： 汽車起重機 CAE技術(shù) ADAMS AMESim 聯(lián)合仿真

【摘要】：汽車起重機是一種廣泛應用于國民經(jīng)濟建設領域的流動式起重設備，它是一種主要涉及結(jié)構(gòu)、液壓、控制等多學科的復雜機械系統(tǒng)，而隨著我國國民經(jīng)濟建設的迅猛發(fā)展，其需求量越來越大，同時對性能要求也越來越高。通常汽車起重機的工作機構(gòu)均由液壓驅(qū)動，液壓系統(tǒng)特性在很大程度上決定了整機性能。因而，對液壓系統(tǒng)進行深入研究以改善其性能便成為汽車起重機研發(fā)過程中的重要一環(huán)，而研究的重要和有效手段是計算機仿真。 汽車起重機作為涉及機械、液壓、控制等多個學科的復雜機械系統(tǒng)，僅僅基于單一學科對汽車起重機液壓系統(tǒng)進行仿真分析已顯現(xiàn)出明顯的局限性。本文基于多學科聯(lián)合建模仿真理念，借助機械動力學仿真軟件ADAMS、液壓仿真軟件AMESim分別構(gòu)建了汽車起重機液壓系統(tǒng)的機械、液壓系統(tǒng)模型，通過接口文件實現(xiàn)汽車起重機機械與液壓系統(tǒng)的仿真數(shù)據(jù)共享，完成汽車起重機液壓系統(tǒng)的機液聯(lián)合仿真，從而為涉及多學科復雜機械的仿真分析提供更加貼近實際的建模仿真分析方法。 為了使這種多學科聯(lián)合仿真方法便于實際使用，利用VB語言建立了汽車起重機液壓系統(tǒng)基于ADAMS和AMESim的機液一體化仿真平臺，通過編制專用接口文件，可以完成該平臺對ADAMS和AMESim軟件的調(diào)用，建立兩種軟件之間仿真數(shù)據(jù)的實時傳遞和共享機制，從而較為容易地實現(xiàn)汽車起重機液壓系統(tǒng)的機液聯(lián)合仿真。通過該平臺對QY20汽車起重機起升機構(gòu)的機液聯(lián)合仿真表明，系統(tǒng)運行可靠，可以實現(xiàn)起升機構(gòu)的機液一體化建模與仿真，仿真和現(xiàn)場實驗結(jié)果對比表明，多學科聯(lián)合仿真的流量、壓力仿真曲線與試驗曲線誤差都在6%以下，，而采用單一AMESim軟件仿真相應的仿真結(jié)果誤差在10%上下波動。這說明，基于多平臺CAE技術(shù)的聯(lián)合仿真較單一學科仿真具有更高的結(jié)果準確性。 這種基于多平臺CAE技術(shù)的汽車起重機液壓系統(tǒng)分析方法的實現(xiàn)、相應仿真平臺的構(gòu)建和使用，對涉及多學科的其它工程機械系統(tǒng)分析也具有借鑒意義。
[Abstract]:Truck crane is a kind of mobile lifting equipment which is widely used in the field of national economic construction. It is a complex mechanical system mainly involved in structure, hydraulic pressure, control and so on. With the rapid development of China's national economy, its demand is increasing, and the performance requirements are becoming higher and higher. Usually, the working mechanism of truck crane is driven by hydraulic pressure. The characteristics of hydraulic system to a large extent determine the performance of the whole machine. Therefore, the in-depth study of hydraulic system to improve its performance has become an important part of the research and development process of truck crane. The important and effective means of research is computer simulation. Truck crane as a complex mechanical system involving mechanical, hydraulic, control and other disciplines. The simulation and analysis of the hydraulic system of truck crane based on a single subject has shown obvious limitations. Based on the concept of multidisciplinary joint modeling and simulation, this paper makes use of the mechanical dynamics simulation software ADAMS. The hydraulic simulation software AMESim constructs the mechanical and hydraulic system models of the truck crane hydraulic system respectively, and realizes the sharing of the simulation data between the truck crane machinery and the hydraulic system through the interface file. The combined simulation of hydraulic system of truck crane is completed, which provides a more practical modeling and analysis method for the simulation and analysis of multi-disciplinary complex machinery. In order to make this multi-disciplinary joint simulation method easy to be used in practice, the hydraulic system of truck crane based on ADAMS and AMESim was established with VB language. By compiling the special interface file, the platform can complete the transfer of ADAMS and AMESim software, and establish the real-time transfer and sharing mechanism of simulation data between the two kinds of software. Therefore, it is easy to realize the joint simulation of the hydraulic system of truck crane. The simulation of the lifting mechanism of QY20 truck crane by this platform shows that the system is reliable. The integrated modeling and simulation of hoisting mechanism can be realized. The results of simulation and field experiments show that the error of flow, pressure simulation curve and test curve of multidisciplinary joint simulation is less than 6%. The error of the simulation results with a single AMESim software is about 10%, which shows that. The result of joint simulation based on multi-platform CAE technology is higher than that of single subject simulation. The realization of the hydraulic system analysis method of truck crane based on multi-platform CAE technology and the construction and use of the corresponding simulation platform also have reference significance for the analysis of other construction machinery systems involving many disciplines.
【學位授予單位】：沈陽建筑大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH213.6;TP391.9

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