Numerical Model for Collision Damping of Blades Tips

摘要：

In order to obtain the collision damping of blades tips characteristics, around a blades for a 300MW steam turbine, the COMBIN40 element of ANSYS was adopted. The collision damping among blades tips is equivalent to a damping of spring and friction with a gap. Under the conditions of exciting force and rotating blade natural frequency ,the vibration of a harmonic response was analysed, the nonlinear impact damping of blade response characteristics and the vibration damping mechanism of collision was got.

关键词： Blades tips Prestressed Collision damping COMBIN40

作者: Xue Jin Mingzhi Zhang Li Hongwei Zhang Xiaomei

作者单位: Department of Power Engineering, School of Energy Power & Mechanical Engineering ,North China Electric Power University, Baoding 071003, Hebei Province, China

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 2349-2353

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）