平头卡车气动减阻设计及试验研究  

Design and Experimental Study of Aerodynamic Drag Reduction for Cabin-over-engine Trucks

作　　者：庄超 王欢 王晓宇[4] 王敏 张英朝[4] ZHUANG Chao;WANG Huan;WANG Xiaoyu;WANG Min;ZHANG Yingchao(State Key Laboratory of Intelligent Manufacturing of Advanced Construction Machinery,Xuzhou 221004,China;Jiangsu XCMG State Key Laboratory Technology Co.,Ltd.,Xuzhou 221004,China;Technology Center,Xuzhou Xugong Automobile Manufacturing Co.,Ltd.,Xuzhou 221000,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China)

机构地区：[1]高端工程机械智能制造国家重点实验室,江苏徐州221004 [2]江苏徐工国重实验室科技有限公司,江苏徐州221004 [3]徐州徐工汽车制造有限公司技术中心,江苏徐州221000 [4]吉林大学汽车仿真与控制国家重点实验室,吉林长春130022

出　　处：《湖南大学学报（自然科学版）》2023年第6期45-52,共8页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(11772140);第十五批“六大人才高峰”项目(JXQC-043)。

摘　　要：为改善某平头卡车气动特性,降低风阻,通过卡车整车风洞试验研究不同部件对阻力系数的贡献,发现导流罩、领口板、后视镜、侧裙板对阻力系数的贡献很大.根据空气动力学原理对导流罩等对阻力系数贡献大的部件进行气动减阻优化设计,并通过试验对减阻效果进行验证.通过后视镜与导流罩的改型设计,改善卡车前端流场;对货箱尾部导流片进行参数组合设计,改善卡车尾部流场;得到各部件减阻效果较好的组合方案.风洞试验结果表明,经过气动减阻设计,卡车车身气动性能得到明显改善,相比于初始模型,最佳气动性能组合方案的减阻效果约为7%.To improve the aerodynamic characteristics of a cabin-over-engine truck and reduce wind resistance,the contribution of different components to the drag coefficient was studied through the wind tunnel test of the truck.It was found that the air deflector,neckline plate,rearview mirror and side skirt contributed greatly to the drag coefficient.According to the aerodynamic principle,aerodynamic drag reduction optimization design is carried out for the parts which make a great contribution to the drag coefficient such as the air deflector,and the drag reduction effect is verified by experiments.The flow field in the front of the truck is improved through the modification design of the rearview mirror and air deflector,and the flow field in the rear of the truck is improved through the parameter combination design of the deflector at the rear of the cargo box.Finally,the schemes with good drag reduction effect of each component are combined.The wind tunnel test results show that the aerodynamic performance of the truck body has been significantly improved through the aerodynamic drag reduction design.Compared with the initial model,the drag reduction effect of the optimal aerodynamic performance combination scheme is about 7%.

关 键 词：气动减阻 风洞 平头卡车 卡车减阻附件 

分 类 号：U461.1[机械工程—车辆工程]