Optimization analysis of high-speed container flat car suspension parameters

Transportation has a rapid development with the stimulus of electronic commerce. As the internet economic hold dominant position, freight characterized by mass high added value, strong timeliness demand has been in strong demand. The world railway transportation presents the trend of logistics. Based on the freight market demand, high-speed wagon become one of the main direction of railway transportation. The technique of railway freight has restricted the reform of the railway freight in our country. The high speed bogie container flat car of Speed of 220 km has been designed. This article will optimize its key parameters of suspension. 1. The research background According the bogie and car body's parameters of container flat car of Speed of 220 designed by one company, referring to the high-speed motor train unit's bogie structure, we adopt the method of dynamic simulation to analyze the motion stability in flat car empty condition.