阶梯形闭口薄壁杆的约束扭转振动  

Restrained torsional vibrations of stepped closed thin walled bars

作　　者：张英世[1] 

机构地区：[1]北京航空航天大学飞行器设计与应用力学系508教研室

出　　处：《计算力学学报》1999年第2期169-174,共6页Chinese Journal of Computational Mechanics

摘　　要：用奇异函数建立非单一材质的ｎ级阶梯形闭口薄壁杆约束扭转自由振动和强迫振动的微分方程并求得其通解，用Ｗ算子给出主振型函数的表达式及常见支承条件下杆的频率方程。Differential equations of restrained torsional free/forced vibrations of non unitary materials n step closed thin walled bars are established by using singular functions, their general solutions solved for, expression of vibration mode function and frequency equations on usual supports derived with W operator.

关 键 词：阶梯形 闭口 薄壁杆 约束扭转振动 自由振动 

分 类 号：O326[理学—一般力学与力学基础] TB123[理学—力学]