叶片冠间接触碰撞数值模拟及实验研究  

Numerical simulation and experimental research on impact-contact between tips of blades

作　　者：马晓峰[1] 刘占生[1] 侯宪科[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《振动与冲击》2010年第3期34-38,共5页Journal of Vibration and Shock

摘　　要：研究了自带冠叶片冠间接触碰撞的动力学特性及减振机理。利用弹性力学理论对叶片冠间接触碰撞问题建立碰撞弹性力模型,叶片的冠间接触碰撞进行了数值模拟,并通过实验验证了理论分析的结果,进而得到了叶片接触碰撞系统的非线性响应特性及减振机理。The dynamic characteristics and damping mechanism of impact-contact between tips of blades were studied.The model of elastic impact forces for the impact-contact between tips of blades was established by employing the theory of elasticity.Then the impact-contact of blades was simulated numerically and the results were verified by experiments.Finally the nonlinear response characteristics and damping mechanism of impact-contact system were obtained.

关 键 词：自带冠叶片 接触碰撞 非线性 实验研究 

分 类 号：TK4[动力工程及工程热物理—动力机械及工程]