对机械密封装置中的Ω型弹簧刚度与应力的数值仿真分析

Numerical Simulation of Stiffness and Stress on a Ω Shaped Spring in Sealed Apparatus

应用有限元软件ANSYS对新型的船体尾轴密封装置中的Ω型弹簧进行模拟和分析。对弹簧承受大应力的部位进行强度校核,并描绘出弹簧的压缩量-弹性力,以及压缩量-最大等效(Mises)应力的关系曲线。模型分别采用各圈单独和整体两种不同的建模方式进行计算。两种建模方式的结果较为吻合,证实了方法的可靠性。分析结果为机械密封装置Ω型弹簧的优化设计提供了参考。

In this paper, FEM software ANSYS was used to analyze and simulate the Ω spring in a new stern shaft sealed apparatus. The high stress region of the spring was checked. The relations of the compression vs resistance and compression vs maximum stress were plotted respectively. Two models were considered in the computation. One was to analyze each single ring of the spring and the other was to analyze the spring as a whole. The two models agreed with each other, thus showing the reliability of the modeling technique. The computing results can be consulted during the optimal design of such Ω spring in the sealed apparatus.