本文選題：橋塔檢測機 + 虛擬樣機��； 參考：《重慶交通大學(xué)》2014年碩士論文

【摘要】：隨著我國交通事業(yè)的快速發(fā)展，中國橋梁建設(shè)正在突飛猛進。交通量的增長對橋梁通行能力和承載能力要求越來越高，大量橋梁的陳舊老化對現(xiàn)役橋梁的安全運行也構(gòu)成了巨大的壓力。因此，開發(fā)先進、有效的檢測設(shè)備，加強現(xiàn)役橋梁的病害診斷及檢測維護，已成為交通安全研究的重要研究方向。 橋塔檢測機是導(dǎo)師率領(lǐng)的研究團隊針對懸索橋橋塔結(jié)構(gòu)專門開發(fā)的檢測設(shè)備，結(jié)構(gòu)復(fù)雜，其機構(gòu)運行穩(wěn)定直接影響到該橋梁檢測設(shè)備的檢測精度和位置準確性。本論文運用虛擬樣機技術(shù)，，通過ADAMS和Simulink聯(lián)合仿真對橋塔檢測機的動力學(xué)穩(wěn)定性進行了深入研究。 主要研究內(nèi)容如下： ①在分析了橋塔檢測機的機構(gòu)構(gòu)成以及運行機理的基礎(chǔ)上，利用三維設(shè)計軟件UG建立橋塔檢測機虛擬樣機的三維實體模型，研究了UG與ADAMS之間模型的傳遞方法后，然后采用了最可靠的ParaSolid格式將模型導(dǎo)入動力學(xué)分析軟件ADAMS中。 ②深入討論了鋼絲繩的建模方法，并選擇了ADAMS宏命令成功實現(xiàn)了橋塔檢測機鋼絲繩系統(tǒng)模型的建立，著重闡述了鋼絲繩的建模流程，包括小圓柱離散、軸套力的添加、鋼絲繩的纏繞以及接觸力的添加，并附上詳細的宏命令。 ③根據(jù)檢測機的輪胎特點及橋塔側(cè)面墻體的等效路面等級，利用ADAMS提供的輪胎、路面屬性文件建立輪胎路面耦合模型，并按照物理樣機的運動關(guān)系在ADAMS軟件中對各個構(gòu)件添加驅(qū)動、約束和力。 ④研究了三相異步電機的工作原理，分析了其數(shù)學(xué)模型，建立了基于三相異步電機的Simulink控制模型，并結(jié)合ADAMS機械系統(tǒng)模型搭建了機電一體化聯(lián)合仿真模型，成功實現(xiàn)了橋塔檢測機的動態(tài)仿真。 ⑤參照垂直升降電梯的穩(wěn)定性評價方法，對橋塔檢測機的運行穩(wěn)定性進行分析評價，首先對檢測機的振動特性進行了分析，并優(yōu)化了影響其運行穩(wěn)定性的相關(guān)參數(shù)，然后提出了檢測機姿態(tài)穩(wěn)定性的概念，并對其姿態(tài)穩(wěn)定性進行了仿真分析，最后分析了鋼絲繩性能對系統(tǒng)的影響，結(jié)果證明檢測機的運行穩(wěn)定性能夠達到標準，能夠保證檢測機順利、穩(wěn)定的進行檢測作業(yè)。
[Abstract]:With the rapid development of China's transportation industry, the construction of bridges in China is advancing by leaps and bounds. The increase of traffic volume demands more and more high bridge capacity and bearing capacity. The aging of a large number of bridges also poses a great pressure on the safe operation of existing bridges. Therefore, it has become an important research direction of traffic safety research to develop advanced and effective detection equipment and strengthen the disease diagnosis and detection and maintenance of existing bridges. The bridge tower tester is a special testing equipment for suspension bridge tower structure, which is specially developed by the research team led by the tutor. The structure is complex, and its mechanism operation stability directly affects the detection accuracy and location accuracy of the bridge detection equipment. In this paper, the dynamic stability of the bridge tower tester is studied by Adams and Simulink simulation using virtual prototyping technology. The main research contents are as follows: 1 based on the analysis of the structure and operation mechanism of the bridge tower tester, the three-dimensional solid model of the virtual prototype of the bridge tower detector is established by using the three-dimensional design software UG. After studying the transfer method of the model between UG and Adams, the most reliable Para solid format is used to import the model into the dynamic analysis software Adams. 2 the modeling method of wire rope is discussed in depth. The model of wire rope system of bridge tower tester is established successfully by selecting Adams macro command. The modeling process of wire rope is described emphatically, including small cylinder discrete, shaft sleeve force added, wire rope winding and contact force added. A detailed macro command is attached. 3 according to the tire characteristics of the tester and the equivalent pavement grade of the side wall of the bridge tower, a tire pavement coupling model is established by using the tire and pavement attribute file provided by Adams. According to the motion relation of the physical prototype, the driving, constraint and force of each component are added into Adams software. 4 the working principle of the three-phase asynchronous motor is studied, and its mathematical model is analyzed. Simulink control model based on three-phase induction motor is established, and combined with Adams mechanical system model, the combined simulation model of electromechanical integration is built. The dynamic simulation of the bridge tower tester is successfully realized. 5 the stability of the bridge tower tester is analyzed and evaluated by referring to the stability evaluation method of the vertical elevator. Firstly, the vibration characteristics of the bridge tower detector are analyzed. Then the concept of attitude stability of the tester is put forward, and its attitude stability is simulated and analyzed. Finally, the influence of the performance of wire rope on the system is analyzed. The results show that the operation stability of the tester can reach the standard and ensure the testing machine smoothly and stably.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U446

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本文編號：2082223