某型直升机离合器前轭分解有限元分析

Finite Element Analysis of Disassembling the Clutch Front Yoke in a Certain Type of Helicopter

离合器前轭作为直升机传动系统的关键部件,对其安全分解是维修工作的重点,利用ANSYS Workbench对其可能的两种分解方式进行了三维有限元分析,得出了两种分解方式下的应力分布、最大应力、变形。计算结果表明采用轭管下端面约束的分解方式对轭损伤较小,对轭的维修提供了理论上的依据。

The clutch front yoke is one of the key components of helicopter transmission system, and safely disassembling theyoke is the focus of maintenance work. Three dimensional finite element analyses on its two decomposition methods are con-ducted by using the ANSYS Workbench, and the stress distribution, the maximum stress and deformation of the two decompo-sition methods are obtained. The calculation results show that the decomposition method of constraint on the lower end face ofhe yoke is less damage to the yoke, which would provide theoretical basis for the yoke maintenance.