基于某車型車頂癟塘問題的分析與解決

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摘 要：本文基于某車型行李架安裝導(dǎo)致的車頂癟塘問題，通過對車頂行李架系統(tǒng)的結(jié)構(gòu)分析建立了車頂變形量公式，提出了減小泡棉有效接觸面積和減小泡棉彈性模量兩種解決方案，并通過實車試驗和有限元仿真驗證了方案的有效性，最終解決了該車頂癟塘問題。

關(guān)鍵詞：行李架 車頂癟塘 泡棉 有限元仿真

Abstract：Based on the roof deformation problem after roof rack’s assembling， this paper analyzed the construction of roof rack system and built a formula of roof deformation. Two solutions were raised and verified through real car test and finite element model simulation. One solution is to reduce the contact area of roof rack foam. The other solution is to reduce the elastic modulus of foam. The proposed schemes have successfully solved the roof deformation problem.

Key words：roof rack， roof deformation， foam， finite element model simulation

1 引言

隨著SUV市場的逐漸擴(kuò)大，自駕游和家用儲物需求也與日俱增，車頂行李架的運用不僅彌補了車后行李艙空間的不足，也給SUV車型增加了運動感和時尚感[1]，行李架變成了各大主機廠SUV車型的標(biāo)準(zhǔn)配置。（剩余5065字）