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김찬중(Chanjung Kim),배철용(Chulyong Bae),신진용(Jinyoung Shin),윤근하(Gunha Yoon),권성진(Sungjin Kwon),이봉현(Bonghyun Lee) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Slam testing of a door module is one of the most significant fatigue-related testing process to meet the qualified performance guideline that is stipulated by major car makers. And every testing procedure of the slam testing is done as slamming the moving part of a door module by hydraulic actuators in practice. Current testing situation is required considerable efforts on the way to prepare the slam testing and even more, even a single specimen result sacrifices at least two weeks or more physically. In this paper, a accelerated similarity testing methodology of a door module is proposed using vibration test equipment instead of the honest testing procedure, that is purely slamming the target system repeatedly up to a failure mode. The response of a door plate module during slam testing indicates that fundamental resonance behaviors of the specimen accumulates the fatigue damage on hot spot of the door plate module. So, The accelerated similarity alternatives of the slam testing is proposed by the block cycle excitation of which spectrum is consisted of resonance frequencies of a target system. Also, the calibration of block cycle testing is conducted through the comprehend the fact of failure mode obtained by the multi-axial vibration testing.