【摘要】：弧面分度凸輪機(jī)構(gòu)具有精確的傳動(dòng)、導(dǎo)向和控制多種功能，廣泛應(yīng)用于煙草、印刷、制藥等各種自動(dòng)機(jī)械。目前，，弧面分度凸輪機(jī)構(gòu)設(shè)計(jì)主要是基于靜力學(xué)和運(yùn)動(dòng)學(xué)的設(shè)計(jì)，基本不涉及動(dòng)力學(xué)問(wèn)題。由于機(jī)構(gòu)在運(yùn)行時(shí)存在周期性的慣性力矩，使機(jī)構(gòu)的實(shí)際輸出與理論值有一定差距。由于弧面分度凸輪機(jī)構(gòu)的發(fā)展趨勢(shì)為高轉(zhuǎn)速，高分度精度，其在運(yùn)行過(guò)程中的動(dòng)態(tài)性能是人們重點(diǎn)關(guān)注的要素。 本文以機(jī)械系統(tǒng)動(dòng)力學(xué)為基礎(chǔ)，建立多自由度的弧面分度凸輪機(jī)構(gòu)動(dòng)力學(xué)模型。利用ADAMS及ANSYS，根據(jù)動(dòng)力學(xué)模型建立弧面分度凸輪機(jī)構(gòu)的虛擬樣機(jī)進(jìn)行動(dòng)力學(xué)仿真，研究其動(dòng)態(tài)性能。主要內(nèi)容如下： (1)研究了弧面分度凸輪機(jī)構(gòu)的主要機(jī)構(gòu)參數(shù)，詳細(xì)分析了影響機(jī)構(gòu)動(dòng)力學(xué)性能的因素，為準(zhǔn)確的研究機(jī)構(gòu)動(dòng)態(tài)性能提供了充足的理論基礎(chǔ)。 (2)根據(jù)機(jī)械系統(tǒng)動(dòng)力學(xué)，重點(diǎn)研究弧面分度凸輪的動(dòng)力學(xué)數(shù)學(xué)模型。采用集中質(zhì)量法，建立多自由度的弧面分度凸輪機(jī)構(gòu)動(dòng)力學(xué)模型，為虛擬樣機(jī)動(dòng)態(tài)性能分析提供理論依據(jù)。 (3)研究弧面分度凸輪機(jī)構(gòu)輸出軸的ANSYS的模態(tài)分析。 (4)通過(guò)ADAMS及ANSYS建立弧面分度凸輪機(jī)構(gòu)的剛?cè)狁詈咸摂M樣機(jī)并進(jìn)行動(dòng)力學(xué)仿真，驗(yàn)證動(dòng)力學(xué)數(shù)學(xué)模型的正確性。 (5)研究仿真數(shù)據(jù)，綜合分析不同機(jī)構(gòu)參數(shù)和工況對(duì)弧面分度凸輪機(jī)構(gòu)的動(dòng)力學(xué)性能的影響。
[Abstract]:The globoidal indexing cam mechanism has many functions, such as precise transmission, guidance and control, and is widely used in tobacco, printing, pharmaceutical and other automatic machinery. At present, the design of globoidal indexing cam mechanism is mainly based on statics and kinematics. Due to the periodic inertia moment of the mechanism in operation, the actual output of the mechanism is far from the theoretical value. Because the development trend of globoidal indexing cam mechanism is high rotational speed and high indexing precision, the dynamic performance of globoidal indexing cam mechanism in operation process is the key element that people pay attention to. On the basis of mechanical system dynamics, the dynamic model of globoidal indexing cam mechanism with multiple degrees of freedom is established in this paper. The virtual prototype of globoidal indexing cam mechanism was established by ADAMS and ANSYS, according to the dynamic model and its dynamic performance was studied. The main contents are as follows: (1) the main mechanism parameters of globoidal indexing cam mechanism are studied, and the factors influencing the dynamic performance of the mechanism are analyzed in detail. It provides a sufficient theoretical basis for the accurate study of the dynamic performance of the mechanism. (2) according to the dynamics of the mechanical system, the dynamic mathematical model of the globoidal indexing cam is studied emphatically. The dynamic model of globoidal indexing cam mechanism with multiple degrees of freedom is established by means of lumped mass method. It provides a theoretical basis for dynamic performance analysis of virtual prototyping. (3) Modal analysis of the output shaft of globoidal indexing cam mechanism is studied. (4) the rigid-flexible coupling virtual of globoidal indexing cam mechanism is established by ADAMS and ANSYS. The pseudo prototype is simulated by dynamics. The correctness of the dynamic mathematical model is verified. (5) the simulation data are studied and the influence of different mechanism parameters and working conditions on the dynamic performance of the globoidal indexing cam mechanism is analyzed synthetically.
【學(xué)位授予單位】：陜西科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH112.2

【參考文獻(xiàn)】

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本文編號(hào)：2245328