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Study of the Simplified Finite-Element Model and the Law of Spring Coefficient Variation

Zhuo Yijin,Li Zhigang,Kuang Peng(Engineering College of the Engineering Corps,PLA Univ.of Sci.&Tech.,Nanjing 210007,China)  
Considering that the property of the gasbag model is similar to that of the spring model,the complex gasbag model is simplified to a general spring model in the light of the Finite Element Method.The spring coefficient is embodied through the relation of active force and displacement.Its magnitude relates to the internal pressure,inter-contacting location between each other(obliquity)and the diameter of the gasbags.The law of spring coefficient variation in different parameters of the gasbag is explored,which lays a foundation for the application of gasbags to engineering support.
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