Tip Clearance Measurement of H-shaped Rotor-Blade of Turbine

摘要：

The capacitive measurement system is proposed for measuring the H-shaped turbine blade tip clearance. The variation of the H-shaped turbine blade tip clearances is obtained by carrying out the experiment under three different designed clearances. It demonstrates that the tip clearance is a key factor which effect on the efficiency of the turbine. The tip clearance decreases as the speed increases;to the contrary, the tip clearance rises as the speed drops. The pressure-side and the suction-side tip clearances have the same variation trends. The bend degree of blade is comparatively larger in the start and stop process, and the bend degree is stabilized when the speed reach a certain speed. It also demonstrates that the tip clearance measurement system can be used to monitor the rotor state.

关键词： blade tip clearance turbine H-shaped blade measurement fault detection

作者: XIONG Bing CHEN Hong-min HAN Wei GUO Guang-hui

作者单位: Gas Turbine Establishment, Aviation Industry Corporation of China,Jiangyou, China School of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing, China

会议类型: 国际会议

会议名称: 4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)

会议地点: 西安

会议语种:英文

页码: 638-642

在线出版日期: 2012-09-10（万方平台首次上网日期，不代表论文的发表时间）