Rattle Detection and Prevention for Door Module of a Car Using Hybrid SEA-FEM method
محل انتشار: نهمین کنفرانس بین المللی آکوستیک و ارتعاشات
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 608
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شناسه ملی سند علمی:
ISAV09_059
تاریخ نمایه سازی: 11 دی 1398
چکیده مقاله:
Nowadays the interior sounds quality has a great importance in the automotive industry since it is significant for the customer understanding of vehicle quality. Squeak and rattle (S&R) is a group of periodic interior noise that degrade the feeling of quality significantly. Squeak is a friction-induced noise due to comparative movement resulting from slip stick phenomenon between interfacing surfaces while rattle is an impact induced phenomenon that occurs when there is a relative motion between components or parts with a short loss of contact. To recognize and solve S&R problems the car manufacturers do both simulations and tests in laboratory for vehicles as well as subsystems. In this study, possible rattle sources are inves-tigated for the door trim of a car using clearance analysis by numerical simulation. Impact statistics and overall force level at potential rattle places are computed through random vibra-tion excitation analyses and then, overall acoustic response and loudness are calculated using hybrid Statistical Energy- Finite Element analysis (SEA-FEA). This procedure repeated for modified thicknesses of lower interior cover and inside connections.
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نویسندگان
Sina Jabarzadeh
PhD Student, Faculty of Mechanical Engineering, Semnan University, P.O. Box: ۳۵۱۳۱-۱۹۱۱۱, Semnan, Iran
Amir Najibi
Assistant Professor, Faculty of Mechanical Engineering, Semnan University, P.O. Box: ۳۵۱۳۱-۱۹۱۱۱, Semnan, Iran