The main structure types and application of domestic vestibule diaphragms on passenger cars,and the performance requirements on vestibule diaphragms for high speed passenger cars are described.

• 介绍了国内客车风挡的主要结构形式及其应用情况、高速客车用风挡的性能要求,分析了我国现有风挡的特点及存在的问题,提出了我国客车风挡今后的发展建议。