摘要
本文以直接定义的方式引出自由界面部件模态综合中的重要概念—投影矩阵,对其性质作了详尽的阐述,从而赋予惯性释放模态及弹性柔度矩阵模态展开式的推导以明确的物理意义;对于具有正常对接界面的多部件结构,本文从较直观的途径推导了综合过程的第二次坐标变换。
The projection matrix of free-interface component mode synthesis is introduced in this paper by directly defining rather than by the traditional approach. The properties of the projection matrix are discussed in detail, thereby vesting the derivation of the inertia-relief attachment mode with clear physical meaning. The second coordinate transformation for stacked component equations is derived in explicit approach.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1989年第6期107-112,共6页
Journal of Xi'an Jiaotong University
关键词
部件
模态综合
投影矩阵
动力学
structural dynamics modl synthesis method modl nalysis
