航天器火工冲击模拟试验及响应预示方法研究综述  

Review of pyroshock simulation and response prediction methods in spacecraft

作　　者：赵欣[1] 丁继锋[1] 韩增尧[2] 邹元杰[1] 

机构地区：[1]中国空间技术研究院总体部,北京100094 [2]中国空间技术研究院研究发展部,北京100094

出　　处：《爆炸与冲击》2016年第2期259-268,共10页Explosion and Shock Waves

摘　　要：航天器火工冲击力学环境是由星箭分离、部组件展开等工作过程中的火工品起爆引起的作用于结构上的高频、高加速度量级的瞬态冲击响应,能对航天器上含有晶振、脆性材料等的精密电子设备造成致命损伤,是航天器需要经历的最苛刻的力学环境之一。本文中,对国内外航天器火工冲击地面试验方法和环境预示方法做了全面、详细的介绍,总结了这两个方面的研究进展,分析了我国在这两个方面与航天强国的差距。最后,从我国航天工程实际需求出发,提出了今后航天器火工冲击领域应重点开展的研究方向。The pyroshock environment of satellite-rocket separation is the severest mechanical environ- ment during launching, which is characterized by transient high acceleration and high frequency. While it does not necessarily cause a satellite any structural damage, pyroshock may incur most seri- ous damages on a satellite＇s precision electronic equipments containing crystals and brittle materials, resulting in either the failure of the entire mission or even catastrophic accidents. Therefore, during the development of a new spacecraft, an accurate prediction of the pyroshock environment and area sonahle specification and determination for components are essential. In this paper, a research review of ground simulation test methods and the pyroshock response prediction is presented, and the tech- nological gap between China and countries highly developed in field is pointed out. In addition to that, according to the requirements of China^s domestic space engineering, the main research directions in the pyroshock are proposed.

关 键 词：振动理论 响应预示 火工冲击 航天器 地面试验 流体代码 显式有限元 统计能量分析 虚模态综合法 

分 类 号：O32[理学—一般力学与力学基础] V414[理学—力学]