Besides,ammunition SCM system is designed which is based on PDF417 bar code integrating with the characteristic of PDF417 bar code technology,and the safety and share of information are analyzed.

Objective: To investigate the force decay character of different brands of NiTi closed coil spring and elastomeric chain by measuring the remaining force at different time when they were stretched to produce the intended force to provide clinical reference for application of NiTi closed coil spring and elastomeric chain.

Based on some hypotheses and elastic deformation theory, the mechanics model of the belt was established,and relational formula between belt resistance and correlation parameters were obtained by use of analytic theory and sampling analysis.

This thesis analyzes the structure and dynamics of a linkless feed system\'s guideline which offers continuous ammunition feeding for a new exterior power auto-cannon according to the request of a national research project.