基于某車(chē)型車(chē)頂癟塘問(wèn)題的分析與解決

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摘 要：本文基于某車(chē)型行李架安裝導(dǎo)致的車(chē)頂癟塘問(wèn)題，通過(guò)對(duì)車(chē)頂行李架系統(tǒng)的結(jié)構(gòu)分析建立了車(chē)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?jī)煞N解決方案，并通過(guò)實(shí)車(chē)試驗(yàn)和有限元仿真驗(yàn)證了方案的有效性，最終解決了該車(chē)頂癟塘問(wèn)題。

關(guān)鍵詞：行李架 車(chē)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(chǎng)的逐漸擴(kuò)大，自駕游和家用儲(chǔ)物需求也與日俱增，車(chē)頂行李架的運(yùn)用不僅彌補(bǔ)了車(chē)后行李艙空間的不足，也給SUV車(chē)型增加了運(yùn)動(dòng)感和時(shí)尚感[1]，行李架變成了各大主機(jī)廠SUV車(chē)型的標(biāo)準(zhǔn)配置。（剩余5065字）