基于虚接触的发射分离流动与碰撞耦合模型研究

谢军虎; 张瑜莹; 熊文靖; 傅德彬

doi:10.15892/j.cnki.djzdxb.2025.01.009

弹箭与制导学报 >

2025 , Vol. 45 >Issue 1: 69 - 74

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.01.009

基于虚接触的发射分离流动与碰撞耦合模型研究

谢军虎 ^,¹^,² ,
张瑜莹 ³ ,
熊文靖 ⁴ ,
傅德彬 ⁵

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¹ 中国空空导弹研究院,河南洛阳 471009
² 空基信息感知与融合全国重点实验室,河南洛阳 471009
³ 空装驻洛阳地区第一军事代表室,河南洛阳 471009
⁴ 中航技进出口有限责任公司,北京 100176
⁵ 北京理工大学宇航学院,北京 100081

谢军虎(1987—),男,高级工程师,硕士。E-mail: 3120220054@bit.edu.cn

收稿日期: 2024-06-07

网络出版日期: 2025-03-12

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Study on the Launch Separation Flow and Collision Coupling Model Based on Virtual Contact

XIE Junhu ^,¹^,² ,
ZHANG Yuying ³ ,
XIONG Wenjing ⁴ ,
FU Debin ⁵

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¹ China Airborne Missile Academy, Luoyang 471009,Henan,China
² National Key Laboratory of Air-based Information Perception and Fusion, Luoyang 471009, Henan,China
³ The First Military Representative office of Air Force Equipment Department in Luoyang,Luoyang 471009, Henan,China
⁴ China National Aero-technology Import Export & Corporation,Beijing 100176,China
⁵ School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081,China

Received date: 2024-06-07

Online published: 2025-03-12

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摘要

火箭导弹发射分离涉及的气动载荷、多体运动以及接触碰撞是影响发射分离可靠性的重要因素。为采用数值方法分析这类流动运动耦合状态,对基于虚接触的发射分离流动与碰撞耦合模型进行深入研究。耦合模型从瞬态流场数值模型出发,引入考虑多体六自由度运动(6-DOF)的动力学模型,进而采用虚接触表征的接触动力学模型考察多体接触碰撞载荷,获得多种载荷作用下的物体运动和流动耦合状态。结合应用实例的分析表明,虚接触方法能够有效模拟发射分离的流动、运动以及碰撞耦合状态,可为同类分析提供参考。

关键词： 发射与分离; 瞬态流动; 多体运动; 虚接触; 数值模拟

本文引用格式

谢军虎 , 张瑜莹 , 熊文靖 , 傅德彬 . 基于虚接触的发射分离流动与碰撞耦合模型研究[J]. 弹箭与制导学报, 2025 , 45(1) : 69 -74 . DOI: 10.15892/j.cnki.djzdxb.2025.01.009

Abstract

The aerodynamic loads, multi-body motion, and contact collisions involved in the separation process of rocket and missile launches are key factors affecting the reliability of launch separation. To adopt numerical methods for analyzing such coupled states of flow and motion, an in-depth study is conducted on the launch separation flow and collision coupling model based on a virtual contact approach. The coupling model starts from a transient flow field numerical model, that is introduced a dynamics model concerning the six degrees of freedom (6-DOF) multi-body motion, subsequently, a contact dynamics model characterized by virtual contact is used to examine the multi-body contact collision loads to obtain the coupled states of object motion and flow under various loads. The analysis of application examples shows that the virtual contact method can effectively simulate the coupled state of flow, motion, and collision during launch separation and the method can provide a reference for similar analyses.

Key words： launch and separation; transient flow; multi-body motion; virtual contact; numerical simulation

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