火箭橇运行稳定性分析与试验验证  

Stability analysis and test verification of rocket sled operation

作　　者：闫华东 周学文 刘禁 王玉涛 YAN Huadong;ZHOU Xuewen;LIU Jin;WANG Yutao(Test and Measuring Academy of Norinco Group,Huayin 714200,China)

机构地区：[1]中国兵器工业试验测试研究院,陕西华阴714200

出　　处：《振动与冲击》2024年第21期180-186,244,共8页Journal of Vibration and Shock

基　　金：国防科技创新特区项目(202011101)。

摘　　要：为突破多因素耦合作用下高超声速火箭橇系统设计边界控制等关键技术,支撑火箭橇试验速度由超声速向高超声速跨越。以高超声速火箭橇试验的主要失稳原因分析为着手点,从结构和系统角度构建出靴轨结构强度判据和极限冲击速度判据以约束设计边界。基于橇-轨耦合动响应分析方法研究靴轨间隙、轨道不平顺度对火箭橇稳定运行的影响规律,判定火箭橇系统在轨道上的运行稳定性,指导试验系统优化。最后对优化后的系统进行试验验证,系统在轨运行状态正常,满足设计要求。结果表明,高超声速火箭橇稳定运行判据能够指导高超声速火箭橇试验系统的设计,具有一定的工程应用价值。Here,to break through key technologies of boundary control in hypersonic rocket sled system design under multi-factor coupled action,analysis of main causes of instability in hypersonic rocket sled tests was taken as the starting point,strength criterion and ultimate impact velocity criterion for shoe-rail structure were constructed from the perspective of structure and system to constrain the design boundary.Based on the sled-rail coupled dynamic response analysis method,effects of shoe-rail clearance and rail roughness on stable operation of rocket sled were studied to judge the operation stability of rocket sled system on orbit,and guide optimization of test system.Finally,test verification was conducted for the optimized system,and it was shown that the system is operating normally on orbit and meets design requirements.The results showed that the established criteria for stable operation of hypersonic rocket sled can guide hypersonic rocket sled test system design and have a certain engineering application value.

关 键 词：高超声速 火箭橇 稳定性 判据 

分 类 号：TB21[一般工业技术—工程设计测绘]