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Journal of Zhejiang University SCIENCE A 1998 Vol.-1 No.-1 P.

http://doi.org/10.1631/jzus.A2300398


Design and experimental validation of an electromagnetic launching mechanism for a tethered net


Author(s):  Zongming ZHU, Weihao LUO, Zongjing LIN, Yuzhe KANG, Maoying ZHOU, Ban WANG, Huawei QIN

Affiliation(s):  School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China

Corresponding email(s):   myzhou@hdu.edu.cn, bigban@zju.edu.cn

Key Words:  Electromagnetic launching, Tethered-net launching, High-altitude rescue


Zongming ZHU, Weihao LUO, Zongjing LIN, Yuzhe KANG, Maoying ZHOU, Ban WANG, Huawei QIN. Design and experimental validation of an electromagnetic launching mechanism for a tethered net[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .

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doi="10.1631/jzus.A2300398"
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Abstract: 
high-altitude rescue is dangerous and difficult. A new rescue method is proposed here based on electromagnetically launched tethered nets. Four electromagnetic launching units are attached to a revolving platform, from which four projectiles are launched. The four projectiles are connected to a tethered net, bringing it into motion. As the tethered net approaches and comes into contact with the object, the object will be trapped, and the rescue task will then be completed as long as the tethered net can be restored along with the trapped object. The structural design of the electromagnetic launching unit is presented with the established mathematical model. The motion characteristics of the launched projectiles are studied and their exit velocities modeled and measured. Terminal velocities of these projectiles are characterized, and the final shape and position of the projected tethered net are obtained. This study validates the feasibility of using electromagnetically launched tethered nets to perform high-altitude rescues.

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