基于灵敏度分析的采油试验井专用绞车的动力修改

Kinematical Revision of Winch Used in the Recovery Oil Engineering Well Based on Sensitivity Analysis

利用优化设计理论,分析并计算了采油试验井专用绞车的动态响应的灵敏度值,结果表明,绞车传动系统第3段轴的长度是动态响应最敏感参数。将该段轴做相应的修改后,利用动力修改的摄动迭代法,分析并计算出结构修改后的动态响应幅值,结果表明,各结点的挠度值都降低了30%左右,系统的动态响应有明显的提高。利用软件ANSYS和ADAMS对绞车联合仿真,并进行动态响应分析,结果表明,上述基于灵敏度的结构修改重分析方法对于绞车是正确可行的。

The dynamic response sensitivity of the winch used in the recovery oil engineering well was analysed by the optimized design theory. Result indicates that the length of the 3rd section of axis for the winch driving system is the most sensitive parameter. The dynamic response peak of the drive axis whose structure was revised by the iterative perturbation method was analyzed and calculated. The deflection of every pitch points decreased about 30% , and the dynamic response of the driving system was obviously enhanced. The dynamic response of the winch analysed and simulated with software ANSYS and ADAMS shows that it is feasible to apply the sensitivity-based structure revision to the winch.