摘要
介绍一种分析三维编织纤维增强复合材料连杆机构的固有频率、振型和模态阻尼的方法。根据阻尼单元模型 ,采用有限单元法 ,并考虑横向剪切应变的影响 。
This paper describes a methodology for analyzing the natural frequencies , mode shapes and damping values of linkage mechanisms fabricated from three-dimensional braided composite. The intrinsical relation between these dynamic properties of the linkage mechanisms and micromechanics architecture of the composites is derived by using damping element with the aid of the finite element method and allowing trasverse shear deformation.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2000年第5期481-484,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目 (598351 70 )
中国博士后科学基金资助项目
关键词
弹性机构
固有频率
模态阻尼
复合材料
纤维增强
elastic mechanism finite element method natural frequency modal damping composite
