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Failure Analysis and Design Changes of Oxygen Pump Inducers

Failure Analysis and Design Changes of Oxygen Pump Inducers
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摘要 The failure of an oxygen pump inducer during a test run was found to be the result of flow induced vibration. Oscillating fluid mechanics theory was used to determine the oscillating flow field around the inducer for various external oscillating perturbation frequencies. Enormous pressures can occur at some frequencies, which are sufficient to break the inducer. Some design changes were analyzed to improve the flow induced vibration characteristics. The failure of an oxygen pump inducer during a test run was found to be the result of flow induced vibration. Oscillating fluid mechanics theory was used to determine the oscillating flow field around the inducer for various external oscillating perturbation frequencies. Enormous pressures can occur at some frequencies, which are sufficient to break the inducer. Some design changes were analyzed to improve the flow induced vibration characteristics.
出处 《Tsinghua Science and Technology》 SCIE EI CAS 2001年第5期492-496,共5页 清华大学学报(自然科学版(英文版)
基金 Supported by the State Key Developments Plan Project of China ( No.G19990 2 2 3 0 4 )
关键词 INDUCER flow induced vibration paremetric polynomial method (PPM) numerical calculation inducer flow induced vibration paremetric polynomial method (PPM) numerical calculation
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