An experimental study of the natural characteristics of the wheeled and the tracked self-propelled guns

摘要：

　　With wheeled and tracked self-propelled guns as research object, the study carries out the experimental modal analysis by using traditional method of hammering and operational modal analysis method, and obtains low-order natural frequency of the guns, and thus lays the foundation for further research on the vibration characteristics of wheeled and tracked self-propelled guns.By contrasting the low-order natural characteristics of wheeled and tracked self-propelled guns,conclusions can draw as the following: the modal shapes (from low to high) of wheeled and tracked self-propelled guns are pitch, translation and roll; when the modal shapes are identical,the natural frequency of tracked self-propelled guns is greater than that of wheeled self-propelled guns, which accords with the test results of the guns suspension equivalent stiffness; for wheeled self-propelled guns, an accurate measure of the guns natural characteristics is feasible by either the traditional or the operational modal analysis method.When it comes to tracked self-propelled guns, the operational modal analysis method is more accurate.

关键词： wheeled self-propelled guns tracked self-propelled guns operational modal analysis suspension equivalent stiffness natural characteristics of the gun

作者: Pengke Liu Xiaojun Shao Hongxiao Chao Baoyuan Wang

作者单位: Northwest Institute of Mechanical and Electrical Engineering, 712099, Xianyang, Shanxi, P.R.China

会议类型: 国际会议

会议名称: the International Conference Vibroengineering-2014

会议地点: 贵阳

会议语种:英文

页码: 149-154

在线出版日期: 2014-11-07（万方平台首次上网日期，不代表论文的发表时间）