针对某声源钛合金发声振动膜板裂纹故障,利用有限元方法对该膜板进行典型工况下的静力学计算,得出振动膜板应力分布,探究了该膜板裂纹形成主要原因及裂纹类型,并从钛合金零部件设计方面对钛合金疲劳断裂的预防进行探讨,为该型膜板改进设计提供理论依据及建议。 Aiming at the crack failure of a sound source titanium alloy vocal vibrating diaphragm, the static analysis of the diaphragm under typical working conditions is carried out by using the finite element method. The stress distribution of the vibrating diaphragm is obtained, and the main reason for the crack formation and the crack Type titanium alloy parts from the design aspects of titanium alloy fatigue fracture prevention to explore for the type of diaphragm to provide a theoretical basis for improving the design and recommendations.