鸟瞰民用旋翼机座椅的结构试验

An Overview of Structural Testing of Commercial Rotorcraft Seats

美国联邦航理局对民用旋翼机座椅的结构试验提出了新的要求,要求提高静态试验强度、增加两个动态试验。本文就修改试验要求的原因、静态试验与动态试验的区别、试验程序和设备等方面予以扼要综述。试验概念通常“静态”是指作用于物体的力是平衡的,物体处于静止状态。“动态”是指作用力使物体产生运动状态的改变,是考虑物体的运动的。显然,撞击使飞机、座椅和乘员皆承受到动态载荷,所以需要进行动态试验,以检验在撞击情况下座椅能为乘员提供的防护能力。

New rules of requirements for commercial rotorcraft seats was proposed . The static test requirements were increased in severity and two dynamic tests were added . In this paper a general understanding of requirements was proposed . The differences between static and dynamic testing, the requirements, test equipment and dynamic test facilities are discussed in brief.