凸轮发动机轴系横向振动模态综合技术

Modal Analysis of Lateral Vibration of Cam Engine Shafting System

利用模态综合技术分析凸轮发动机轴系横向振动，将具有复杂结构的凸轮发动机轴系划分为具有简单形式的子轴，各子轴用有限元法进行分析，选取各子轴的低阶模态加以综合，从而节省计算机内存，提高分析效率。

The lateral vibration of cam engine shafting system is analyzed by using the method of modal analysis. Cam engine shafting system with complex structure is divided into some substructures with simple forms. The lateral vibration of all substructures is calculated by using the finite element method. Low order modes of substructures is obtained for synthesis, thus the computer memory will be saved and the efficiency of modal analysis may be raised.