性能好的导弹要求壳体的纵向弯曲刚度高于临界值,以防结构与高频控制系统产生动态耦合。在壳体上,如有接头处,可能会产生起铰链作用的低刚度区,因而相应地降低了壳体的固有频率。因此,接头处要设计得成功应同时满足强度和刚度的要求,而接头本身也必须有同样的性质。高刚度接头的基本要求是施加一个大的预加载荷。这个预加载荷必须大于或者等于所预料的最大弯曲载荷。NITINOL合金在塑性变形后能恢复记忆形状,利用这点可在接头上产生大的预加载荷。设计中成功地利用NITINOL的合金性质,可以得到距离弹体加载路线最 Good performance of the missile requirements of the longitudinal bending stiffness of the shell is higher than the critical value to prevent the structure and high-frequency control system to produce dynamic coupling. On the housing, where joints are present, a low stiffness zone that acts as a hinge may be created, thereby correspondingly reducing the natural frequency of the housing. Therefore, the joint should be designed to be successful at the same time to meet the strength and stiffness requirements, and the connector itself must also have the same nature. The basic requirement of a high stiffness joint is to apply a large preload. This preload must be greater than or equal to the maximum expected bending load. NITINOL alloys recover memory shape after plastic deformation, which can be used to create a large preload on the joint. NITINOL successfully used in the design of the alloy properties, you can get the distance from the projectile loading route