The Impact of Temperature Effect on Exhaust Manifold Thermal Modal Analysis.pdf

Research Journal of Applied Sciences, Engineering and Technology 6(15): 2824-2829, 2013 ISSN: 2040-7459; e-ISSN: 2040-7467 漏 Maxwell Scientific Organization, 2013 Submitted: January 22, 2013 Accepted: March 02, 2013 Published: August 20, 2013 The Impact of Temperature Effect on Exhaust Manifold Thermal Modal Analysis 1, 2Bin Zou, 1, 2Yaqian Hu, 1, 2Zhien Liu, 1, 2Fuwu Yan and 1, 2Chao Wang 1School of Automobile Engineering, Wuhan University of Technology, 2Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan 430070, China Abstract: The impact of temperature effect on exhaust manifold modal analysis is analyzed in this study. Firstly, the temperature field is mapped from the CFD software and then heat conduction process is analyzed in FEM software with the temperature field boundary conditions. At last the modal analysis that considers temperature effect is done. The frequency and vibration mode between cold modal and thermal modal鈥檚 are compared. The result shows that temperature has a great influence on the manifold mode and it is very valuable to product design. Keywords: Exhaust manifold, Finite Element Method (FEM), temperature field, thermal modal analysis INTRODUCTION (2006) considering a flat plate as the object of research, the analyses of structural transient temperature field and Modal analysis is used to study the inherent characteristic of structural vibration are presented with dynamic characteristics of a system. Natural frequency the conditions of thermal load. Their calculation results can show that the structure can produce resonance show that transient heating has a serious effect on th