Simulation and Experiment of Multi-body system dynamic Model with Clearance Joint for Ammunition Belt System

WANG Guangjian¹  JIANG Tieniu²

(1. State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400030;
2. Research Institute of Mechatronics Engineering,Changan Auto (Group) Co. Ltd, Chongqing 400023)

Abstract: Traditional mechanics model for ammunition belt system is usually simplified as a motion in a plane, which has a limitation of analysis of the latitudinal motion and cannonball fleeing. The longitudinal and latitudinal mechanical characteristic of the ammunition belt system with helical guider is discussed. A multi-body system dynamic model including clearance joints is obtained for the ammunition belt system. In the spring-damp model, a virtual spring connecting the two contact points is assumed to simulate the impact and contact. The simulation and experiment are finished, which indicates that the above model can well simulate and estimate the mechanical characteristic.

Key words: Multi-body system dynamic model  Ammunition belt  Helical guider  Clearance joints

CLC No: O313.7 TJ818

Received 200770724, received in revised form 20080228

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