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Vol. 171, Issue 5, May 2014, pp. 115-120




Optimization Design of Multi-Parameters in Rail Launcher System

1 Yujiao Zhang, 1 Weinan Qin, 2 Junpeng Liao, 3 Jiangjun Ruan

1 College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China
2 Maintenance Branch of Chongqing Electric Power Company, Chongqing 400039, China
3 School of Electrical Engineering, Wuhan University, Wuhan 430072, China

1 E-mail: jiao_zyj@163.com


Received: 11 March 2014 /Accepted: 30 April 2014 /Published: 31 May 2014

Digital Sensors and Sensor Sysstems


Abstract: Today the energy storage systems are still encumbering, therefore it is useful to think about the optimization of a railgun system in order to achieve the best performance with the lowest energy input. In this paper, an optimal design method considering 5 parameters is proposed to improve the energy conversion efficiency of a simple railgun. In order to avoid costly trials, the field- circuit method is employed to analyze the operations of different structural railguns with different parameters respectively. And the orthogonal test approach is used to guide the simulation for choosing the better parameter combinations, as well reduce the calculation cost. The research shows that the proposed method gives a better result in the energy efficiency of the system. To improve the energy conversion efficiency of electromagnetic rail launchers, the selection of more parameters must be considered in the design stage, such as the width, height and length of rail, the distance between rail pair, and pulse forming inductance. However, the relationship between these parameters and energy conversion efficiency cannot be directly described by one mathematical expression. So optimization methods must be applied to conduct design. In this paper, a rail launcher with five parameters was optimized by using orthogonal test method. According to the arrangement of orthogonal table, the better parameters’ combination can be obtained through less calculation. Under the condition of different parameters’ value, field and circuit simulation analysis were made. The results show that the energy conversion efficiency of the system is increased by 71.9 % after parameters optimization.


Keywords: Electromagnetic launching, Energy conversion, Field and circuit analysis, Optimization method.


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