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首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference 2004(IJTC 2004) vol.1 pt.A; 20041024-27; Long Beach,CA(US) >FAST SPEED EXPANSION TECHNIQUE FOR THE TRANSIENT ANALYSIS OF AUTOMOTIVE CLUTCHES
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FAST SPEED EXPANSION TECHNIQUE FOR THE TRANSIENT ANALYSIS OF AUTOMOTIVE CLUTCHES

机译：汽车离合器瞬态分析的快速扩展技术

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摘要

The transient modal analysis method (TMA) has been used to solve the inhomogeneous (loaded) transient thermoelaslic contact problem (ITTEC). In the TMA method, the solution of the inhomogeneous transient problem is expressed in modal coordinates, corresponding to eigenfunctions of the homogeneous (unloaded) problem. However, for the large-scale ITTEC problem, this method is found to be extremely time-consuming, because of the computation-intensive of the eigen-solutions. This paper describes a new approach to solve the large-scale ITTEC problem with a dramatic reduction in computational complexity. The method is referred to as fast speed expansion method (FSE). With the FSE method, full eigen-solutions are performed only at a limited number of sparsely located speeds. For speeds between these speeds, eigenvectors are solved by linear interpolation, while the eigenvalues are computed from Taylor series. The method is illustrated with application to an automotive clutches.
机译：瞬态模态分析方法（TMA）已用于解决非均匀（加载）瞬态热弹性接触问题（ITTEC）。在TMA方法中，非均质瞬态问题的解以模态坐标表示，对应于均质（未加载）问题的本征函数。但是，对于大型ITTEC问题，由于本征解的计算量很大，因此该方法非常耗时。本文介绍了一种解决大规模ITTEC问题的新方法，可显着降低计算复杂性。该方法称为快速扩展方法（FSE）。使用FSE方法，仅以有限数量的稀疏定位速度执行完整的本征解。对于这些速度之间的速度，通过线性插值法求解特征向量，而根据泰勒级数计算特征值。将该方法应用于汽车离合器进行了说明。

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