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Research on Aerodynamic Performance of Flexible Accessoriesin Commercial Vehicles*
Zhou聽Zhibin锛?Li聽Cheng锛?Xu Enyong
锛?Commercial Vehicle Tech Center锛?Dong Feng Liuzhou Motor Co.锛?Ltd.锛?Guangxi Liuzhou 545005聽锛?p style="margin-left锛?8pt">Abstract锛?/b>聽With the continuous improvement of the timeliness requirements of the commercial vehicle logistics market锛?how to reduce the resistance and obtain the best fuel economy has become the first technical problem to be solved by each OEM. The wind resistance rises rapidly as the vehicle speed rises into a square relationship. In the past锛?the analysis of the aerodynamic performance of the entire vehicle was limited by the requirements of the vehicle's use boundary锛?and it was mostly carried out to optimize the vehicle modeling structure. This article collects the development of European and American commercial vehicle vehicles and material application trends锛?and conducts simulation and optimization analysis of the front bumper锛?side skirt锛?and shroud after adding flexible accessories. The analysis results show that by adding flexible accessories with different states锛?the vehicle's wind resistance coefficient is increased. It can obtain better optimization results and provide design guidance for subsequent manufacturers to carry out product development.
Keywords锛?Flexible attachments; commercial vehicles; aerodynamics
CLC NO.锛?U467聽聽document Code锛?A 聽Article ID锛?1671-7988锛?020锛?0-84-04
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