用滑行试验法测定汽车空气阻力系数研究

摘要

It is a very important significance to measure automotive air resistance coefficient for developing automtive products.The rationale,road test method and data processing mehed for measuring automotive air resistance coefficient by coasting test on road are described in detail and the test data of air resistance coefficient of Songhuajiang Zhongyi HFJ 6351C mini-bus is given in the paper.It is shown by research that it is a simpler and cheaper way for measuring automtive air resistance coefficient by coasting test method compared with air tunnel test method.%测定汽车的空气阻力系数对开发汽车产品具有非常重要的意义。较详细地介绍了用道路上的滑行试验测定汽车空气阻力系数的理论基础、道路试验方法及数据处理方法，并给出了松花江中意HFJ6351C型微型客车的空气阻力系数的试验数据。研究表明，采用滑行试验法测定汽车空气阻力系数远比采用风洞法简单方便，且费用低廉。