本文選題：高速傳輸裝置 + 磨損量預(yù)測�。� 參考：《中北大學(xué)》2015年碩士論文

【摘要】：隨著工程工業(yè)化的發(fā)展，高速傳輸裝置在工業(yè)中的運(yùn)用越來越廣泛。高速傳輸裝置能夠滿足工業(yè)對傳輸速率上的要求。但是它存在很多缺點(diǎn)，比如造價昂貴，器械內(nèi)部磨損嚴(yán)重，故障率高，可靠度低，壽命短等。所以對高速傳輸裝置磨損可靠性的研究尤為重要。 本文針對某型號高速傳輸機(jī)構(gòu)的磨損可靠性開展了下面一系列的工作： 首先，通過ANSYS軟件對某型號高速傳輸裝置中的齒輪傳動機(jī)構(gòu)進(jìn)行了有限元分析，得到了齒輪的受力分布，以此得出可靠性分析時的薄弱部件。 其次，按照均勻設(shè)計實(shí)驗(yàn)方法，制定磨料硬度、載荷與滑動速度的三因素實(shí)驗(yàn)方案。然后運(yùn)用自制的摩擦磨損實(shí)驗(yàn)機(jī)進(jìn)行摩擦磨損實(shí)驗(yàn)。得到并分析磨損量與磨損表面形貌等實(shí)驗(yàn)數(shù)據(jù)。得出在實(shí)驗(yàn)的條件下磨損的形式主要是磨粒磨損，同時存在少量的粘著磨損。 再次，進(jìn)行磨料硬度、載荷與滑動速度的單因素實(shí)驗(yàn)，分析了每個因素對磨損的影響。得出磨損量隨硬度的增加而減小，隨載荷的增加而增大，隨滑動速度的增加而增大，，這三個因素對磨損量均有直接且明顯的影響。確定了磨損預(yù)測模型需考慮的自變量。然后運(yùn)用偏最小二乘法對磨損量進(jìn)行了預(yù)測，得到磨損量與硬度、載荷和速度的關(guān)系。 最后，給出了某高速傳輸裝置中的齒輪傳動機(jī)構(gòu)可靠度計算實(shí)例。在實(shí)例計算中通過虛擬樣機(jī)仿真軟件ADAMS得出其允許最大磨損量，并根據(jù)磨損預(yù)測模型計算出了相同工作時間的可靠度預(yù)測值和不同可靠度時的工作壽命。 本文為磨損量的預(yù)測提供了理論和實(shí)驗(yàn)上的支持，同時對磨損可靠性進(jìn)行了分析，并給出了計算實(shí)例。在允許最大磨損量的確定上，突破以往的方式，采用虛擬樣機(jī)技術(shù)。為磨損可靠性的研究提供了參考。
[Abstract]:With the development of engineering industrialization, high-speed transmission devices are more and more widely used in industry. High-speed transmission device can meet the requirements of industrial transmission rate. However, it has many disadvantages, such as high cost, serious internal wear, high failure rate, low reliability, short life and so on. So it is very important to study the wear reliability of high-speed transmission device. In this paper, the wear reliability of a certain type of high-speed transmission mechanism is studied as follows: firstly, the finite element analysis of gear transmission mechanism in a certain type of high-speed transmission device is carried out by ANSYS software. The force distribution of gear is obtained, and the weak parts in reliability analysis are obtained. Secondly, according to the uniform design method, three factors of abrasive hardness, load and sliding speed are designed. Then the friction and wear experiments were carried out by using a self-made friction and wear tester. The experimental data such as wear amount and wear surface morphology were obtained and analyzed. Under the experimental conditions, the wear form is mainly abrasive wear, and there is a small amount of adhesive wear at the same time. Thirdly, single factor experiments of abrasive hardness, load and sliding speed are carried out, and the influence of each factor on wear is analyzed. It is concluded that the wear rate decreases with the increase of hardness, increases with the increase of load and increases with the increase of sliding speed. These three factors have a direct and obvious effect on the wear rate. The independent variables to be considered in the wear prediction model are determined. Then, the partial least square method is used to predict the wear quantity, and the relationship between wear quantity and hardness, load and velocity is obtained. Finally, an example of calculating the reliability of gear transmission mechanism in a high speed transmission device is given. In the example calculation, the maximum allowable wear quantity is obtained by the virtual prototype simulation software Adams, and the reliability prediction value of the same working time and the working life under different reliability are calculated according to the wear prediction model. This paper provides theoretical and experimental support for the prediction of wear quantity, analyzes the wear reliability and gives an example of calculation. In order to determine the maximum wear quantity, the virtual prototyping technology is adopted to break through the previous way. It provides a reference for the study of wear reliability.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TH117

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