The paper demonstrates the practicability and validity of the type of vehicle in theoryIt can guarantee the air feed quality and safety,meet the request of index of tactics and techniqueAnd by evaluating of the stability and reliability of the type of vehicle,it can provide strongly theory support and technical guarantee for the using and maintenance of the type of vehicle

Based on the stable reliability design theory and the optimization design method,the stable reliability-based optimization of compressive bar is extensively discussed and a numerical method for stable reliability-based optimization is proposed.

Based on the stable reliability-based optimization theory,the stable reliability sensitivity technique and the robust design method,the stable reliability-based robust design of compressive bar is extensively discussed and a numerical method for stable reliability-based robust design is proposed.

Based on stable reliability-based design theory and sensitivity analysis method,research on stable reliability-based sensitivity design for compressive bar is carried out and a numerical method for reliability-based sensitivity design is presented.

Aiming at the common problem of unstable flash frequency on flasher, The author describes in classification the factors influencing flash frequency of self-excited multirelay and puts forward the measures to increase its stability and reliability.

Based on relevant design theory and optimization method, the stability and reliability optimization of arbitrarily-distributed parameters is postulated for compression bars.