Sensitivity analysis and parameter optimization for vibration reduction of undamped multi-ribbed belt drive systems
Sensitivity analysis and parameter optimization for vibration reduction of undamped multi-ribbed belt drive systems
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DOI：
10.1016/j.jsv.2008.03.063
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发表时间：
2008-11
影响因子：
4.7
通讯作者：
Z. Hou;Yao-xin Lao;Q. Lu
中科院分区：
文献类型：
--
作者：
Z. Hou;Yao-xin Lao;Q. Lu
张紧器是确保现代乘用车广泛使用的蛇形皮带传动装置内恒定张力水平的关键机构。对于具有 n 个皮带轮的皮带传动，针对系统的任何设计参数，根据系统矩阵建立了关于频率和稳态谐波响应灵敏度的通用且明确的公式。从公式中推导出相对于关键张紧器参数和皮带速度的频率和稳定响应灵敏度。基于灵敏度分析，对张紧轮进行优化，通过频率失谐来抑制系统的动态响应。通过将灵敏度信息结合到经典的坐标交替过程中，提出了一种搜索最佳参数的新方法。举例验证了频率灵敏度的解析公式并验证了优化效果。
Tensioner is a critical mechanism to ensure a constant tension level within a serpentine belt drive that is widely used in modern passenger vehicles. For a belt drive with n pulleys, generic and explicit formulae about sensitivities of both frequency and steady harmonic responses are established in terms of system matrices with respect to any design parameter of the system. Deductions from the formulae results in frequency and steady response sensitivities relative to key tensioner parameters and the belt speed. Based on sensitivity analysis, optimizations are conducted on tensioner so as to suppress dynamic responses of the system by frequency detuning. A new approach for searching optimal parameters is put forward by incorporating sensitivity information into a classical coordinate alternating procedure. Examples are given to validate the analytical formulae of the frequency sensitivity and to demonstrate the effect of optimization.