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	Active control system of turbine tip clearance
	Qi Xing-Ming ; Piao Ying
	2010-05-10 ; 2010-05-10
会议名称	PROCEEDINGS OF THE INTERNATIONAL CONFERENCE INFORMATION COMPUTING AND AUTOMATION, VOLS 1-3 ; International Conference on Information Computing and Automation ; Hefei, PEOPLES R CHINA ; Web of Science
关键词	active control system tip clearance finite element method HPT aero-engine HEAT-TRANSFER Automation & Control Systems Computer Science, Information Systems Computer Science, Theory & Methods
中文摘要	The tip clearance is one of the most concerned aspects of aero-engine's reliability and performance. Recent technological advances in the field of active clearance control promise to minimize the tip clearance loss without the adverse tip shrouding effects. This paper is most focused on the design of active control system of turbine tip clearance without the tip sensors, which limit the practical applications because the reliability and intensity can not reach the requirements of aero-engine. Composed of the existing sensor equipments, the active control system, with advanced tip clearance analysis programs embedded in the computer on wing, calculates the Real-time tip clearance to control the Execution implements. By the means of finite element method, this paper calculate the changes of the tip clearance of one aero-engine's high pressure turbine(HPT), With the contrast of former methods, some reasonable conclusions have been reached as follows: There are two pinch points of minimum tip clearance in first acceleration and hot re-burst acceleration, respectively. The RPM is the key issue for the distortion of turbine disc, while the temperature is the key point of shroud and blades.; Univ Elect Sci & Technol China
会议录出版者	WORLD SCIENTIFIC PUBL CO PTE LTD ; SINGAPORE ; PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18750]
专题	清华大学
推荐引用方式 GB/T 7714	Qi Xing-Ming,Piao Ying. Active control system of turbine tip clearance[C]. 见:PROCEEDINGS OF THE INTERNATIONAL CONFERENCE INFORMATION COMPUTING AND AUTOMATION, VOLS 1-3, International Conference on Information Computing and Automation, Hefei, PEOPLES R CHINA, Web of Science.

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