Stress Calculation and Fault Simulation of the High Temperature Pneumatic Duct System

摘要：

The high temperature pneumatic ducts are the significant components of Air Management System (AMS). It acts as transfer pipe for air flow with high temperature and pressure. Its reliability is a key issue for the design of AMS. Due to the high temperature and high pressure of the air, the failure of pneumatic duct could even bring catastrophic hazard to aircraft. Considering operation condition of the duct, CAE models are developed in this paper, which is used to obtain the strain and stress distribution of the ducting system under different constraint According to stress analysis, the damage or leakage spot would be determined. On this basis, leakage model is developed to analyze the internal pressure loss and external temperature distribution of the pneumatics ducts under accidental fault condition. These works would be helpful for the design and optimization of the high temperature pneumatic duct system.

关键词： Stress analysis fault simulation pneumatic duct air management system aircraft

作者: Shi Hong Cai Yufei Wang Yu Fan Juli Jiang Yanlong Liu Chao Du Yanping

作者单位: Man Machine Environment Engineering,College of Aerospace Engineering, Nanjing University of Aeronaut Man Machine Environment Engineering,College of Aerospace Engineering, Nanjing University of Aeronaut Man Machine Environment Engineering,College of Aerospace Engineering, Nanjing University of Aeronaut Man Machine Environment Engineering,College of Aerospace Engineering,Nanjing University of Aeronauti Shanghai Aircraft Design &Research Institute, Commercial Aircraft Corporation of China,Ltd,Shanghai Shanghai Aircraft Design &Research Institute,Commercial Aircraft Corporation of China, Ltd, Shanghai

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 958-961

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）