Modal Analysis Of Automotive Rear Lamp Lens Produced From Plastic Material

Authors : Erhan AY, Bariş EDİZ, Taner ÇAL, Sevda TELLİ ÇETİN

Pages : 84-91

Doi:10.30939/ijastech..578812

View : 14 | Download : 10

Publication Date : 2019-12-31

Article Type : Research Paper

Abstract :In this study; first of all, finite element undamped modal analysis was performed on one of the automotive rear lamp lenses and were obtained natural frequencies and mode shapes. Then, Frequency Response Functions insert ignore into journalissuearticles values(FRF); of an automotive rear lamp lens, made of polymethyl methacrylate insert ignore into journalissuearticles values(PMMA); material, were obtained by using Impact Hammer Test Methods. At the same time; dynamic characteristics of the structure, natural frequencies, damping ratios and mode shapes were obtained. Damping ratios were calculated from the FRF’s by using the Half Power Method. Finite Element Analysis insert ignore into journalissuearticles values(FEA); results and test results were compared and the best test method was determined.
Keywords : Automotive Rear Lamp, Finite Element Analysis, Frequency Response Function FRF, Half Power Method, Impact Hammer Test Method, Modal Analysis