基于无翼载荷的火箭橇多场耦合特性分析  

Analysis of Multi-field Coupling Characteristics of Rocket Sled with a Wingless Payload

作　　者：王文杰 马鑫雨 赵旭 李濠君 向粤 杨龙[1] WANG Wenjie;MA Xinyu;ZHAO Xu;LI Haojun;XIANG Yue;YANG Long(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《兵工学报》2025年第4期382-394,共13页Acta Armamentarii

基　　金：国家自然科学基金青年基金项目(12104047)。

摘　　要：无翼有效载荷是火箭橇试验系统的常见载荷类型,在宽速域水平滑跑时由于非定常气动力、振动与噪声等多场耦合在分离时易出现抬头、低头现象。以双轨火箭橇的无翼有效载荷试验系统为研究对象,对宽速域(马赫数0.4~2.0)水平助推滑跑的声振力耦合进行高精度数值模拟。研究结果表明:在滑跑过程中,有效载荷与助推器中间产生低压区,且随滑跑速度不断扩大作用范围;高速流场的气动载荷会逐渐使火箭橇在有效载荷头部和尾部位置处产生较大变形,主要表现为抬头现象;宽速域水平助推滑跑的气动噪声随滑跑速度增大,高声压级区域由中心逐渐向外扩展;相关研究可为新一代高超声速火箭橇试验系统设计与高精度地面动态测试提供技术支持。Wingless payload is a common type of payload in the rocket sled test system,which is susceptible to head-up and head-down phenomena during separation due to the multi-field coupling of unsteady aerodynamics,vibration and aeroacoustic noise during the horizontal running in a wide speed domain.The,acoustic-vibration force coupling of horizontal boost glide in a wide speed domain(Mach number of 0.4-2.0)is numerically simulated by taking a wingless payload test system of double-track rocket sled as the research object.The results show that a low-pressure region is generated between the payload and the booster during running,and the range of action is continuously expanded with the running speed.The aerodynamic load of high-speed flow field gradually makes the rocket sled produce large deformation at the head and tail positions of the payload,which is mainly manifested as a“head-up”phenomenon.The aerodynamic noise of the horizontal booster running in the wide speed domain increases with the running speed,and the high sound pressure level region gradually expands from the center to the periphery.The relevant research can provide technical support for the design of new generation of hypersonic rocket sled test system and the high-precision ground dynamic test.

关 键 词：火箭橇 水平滑跑 多场耦合 气动特性 噪声特性 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]