A Study of Creep Characteristics for J-85 Engine Turbine Blade
The aim of this research work is to guarantee the flight stability of J-85 engine by studying the creep characteristics of turbine blade. Gas turbine engine is operated under the environment of high temperature and pressure, and high centrifugal force. Thus, the durability of the turbine blade continuously operated under this condition become lower because of the creep influence. Creep test is performed to characterize the creep behavior of turbine blade made of Ni-based superalloy(Rene 80). The test condition is applied for the non-linear stress results considering J-85 engine operating conditions and the fundamental conditions considering material trait To estimate the nonlinear stress with an actual operating condition of J-85 engine, FineTurbo is used to analyze a gas temperature with turbine blade surface and ABAQUS is used to estimate the temperature distribution and stress distribution. Creep curves were fitted using four theta model and the propriety of four theta model is performed to comp are between the prediction model and creep test results. It is hard to obtain the creep data with long creep rupture time, theta projection method is used to predict the creep behavior of J-85 engine normal operating conditioa
J-85 engine turbine blade creep theta projection method Rene 80
Lee Muhyoung Han Wonjae Lee Bokwon Yoo Siyoong Park Jungsun
Graduate School,Korea Aerospace University,Goyang City, 412-791, Republic of Korea Aero Technology Research Institute, Republic of Korea Air Force, Daegu City, 701-799,Republic of Kor Department of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang City, 412-791
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
934-937
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）