scholarly journals Vertical Suspension Optimization for a High-Speed Train with PSO Intelligent Method

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Zhongcheng Qiu ◽  
Shichang Han ◽  
Jing Na ◽  
Chen Wang
Keyword(s):  
High Speed ◽  
Intelligent Transportation System ◽  
Pso Algorithm ◽  
Optimization Method ◽  
Virtual Prototype ◽  
Transportation System ◽  
Rail Transportation ◽  
High Speed Train ◽  
Secondary Suspension ◽  
Intelligent Methods

Intelligent methods and algorithms have promoted the development of the intelligent transportation system in many ways. In the rail transportation, the vertical performance of a high-speed train suspension system has a great impact on the riding comfort of the train. Based on the intelligent optimization method of particle swarm optimization (PSO) algorithm, different inerter-spring-damper (ISD) suspension layouts are proposed for better riding comfort. A 10-degree-of-freedom (10-DOF) vertical dynamic model of a high-speed train is established, and the new suspension layouts are applied to the primary and secondary suspension of the train at the same time. Optimizations are carried out for the suspension parameters of the high-speed train. Performances of different suspension layouts at different running speeds are analysed and compared. The best layout for suspension is concluded. What is more, the virtual prototype simulation and analysis of a high-speed train with consideration of nonlinear inerters are carried out. Friction of a rack-pinion inerter is simulated in the virtual prototype simulation. And the influence of nonlinearity is discussed compared with the ideal suspensions. All the results can represent a guidance for future train suspension design and help the intelligent rail transportation system to be more comfortable.

The United Aircraft High Speed Train Suspension Design

1968 ◽  
Vol 90 (1) ◽  
pp. 28-32 ◽  
Author(s):  
A. R. Cripe
Keyword(s):  
High Speed ◽  
Rail Transportation ◽  
High Speed Train ◽  
High Speed Rail ◽  
High Speed Trains

The demand for improved high speed rail transportation in our growing metropolitan corridor areas has resulted in United Aircraft’s designing and building several new turbine-powered high speed trains. This paper describes some of the unique features in the suspension design permitting significant improvements in comfort and the ability of the trains to negotiate existing curves with greater speed and safety.

scholarly journals Applications of Aluminum Alloys in Rail Transportation

2021 ◽  
Author(s):  
Xiaoguang Sun ◽  
Xiaohui Han ◽  
Chaofang Dong ◽  
Xiaogang Li
Keyword(s):  
Aluminum Alloys ◽  
High Speed ◽  
High Strength ◽  
End Users ◽  
Rail Transportation ◽  
High Speed Train ◽  
Manufacturing Techniques ◽  
Set Up ◽  
High Strength Aluminum Alloys ◽  
Detailed Application

This chapter focus on the latest applications of aluminum alloys in rail transportation field. The typical high-strength aluminum alloys used on high speed train is introduced. The unique properties of aluminum alloys are analyzed. The detailed application is illustrated including car-body, gear box and axle box tie rod. The main challenges encountered in the application are also mentioned. The key manufacturing techniques, such as casting, forming, welding, are analyzed. Finally, the future improvement directions for better application is summarized. It is expected to set up a bridge for materials providers, equipment manufacturers and end-users, thereby promoting the advance of manufacturing technology and application of aluminum alloys in wider fields.

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