In this article, by expatiating on the concept and importance of the flexible design, and analyzing example and summarize corresponding methods of design, explaining that the introducing of the flexible design indicates a kind of reformation of conception which means taking the time factor into account and considering a building as a whole life process.

The elastic design of box boom can be made through two-stage stress theory.

Because bending and being tracked of sound line make torpedo tailing after target to smaller depth,upper limit control trajectory is usually considered in torpedo trajectory design.

A rapid iteration algorithm adapting to ballistic missile trajectory design is presented.

Moreover,the trajectory design based on some limiting factors during terminal phase guidance was theoretically discussed and some ad.

With a combination of calculation and evaluation of charge ballistic schemes, a new charge ballistic design method based on multiple attributes is presented.

The dynamic model and kinematic model of ballistic design are set up by means of mechanics and modern mathematics for torpedo with side\|looking sonar, which are used to attack and defence against single targets.

This paper discusses the ballistic design which is the guide task and the keylink of the overall design of the weapon system.