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Research on response characterstic and dynamic modeling of launch vehicle under the cold launch mode
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Di ZHOU1, Yuanchun ZHOU1, Huijuan WANG1, 2, Zhangjian MA1, Shengpeng JIANG1
Journal of Mechanical Strength | 2025, 47(8) : 101 - 107
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Journal of Mechanical Strength | 2025, 47(8): 101-107
• Experimental Research·Testing Technology •
Research on response characterstic and dynamic modeling of launch vehicle under the cold launch mode
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Di ZHOU1, Yuanchun ZHOU1, Huijuan WANG1, 2, Zhangjian MA1, Shengpeng JIANG1
Affiliations
  • 1.Shanghai Mechatronic Engineering Institute, Shanghai 201109, China
  • 2.College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Published: 2025-08-15 doi: 10.16579/j.issn.1001.9669.2025.08.012
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To accurately simulate the complicated load transfer pattern of the launch device under cold launch mode, the rigid-flexible coupling dynamic simulation method was adopted to analyze the dynamic response of a launch vehicle, the structural strength was also verified. The finite element flexible body was introduced and a multi-rigid-flexible-body dynamic simulation model of a launch vehicle was constructed. Accuracy of the model was verified by the actual launch test. The influence law between the vibration response and stress state of the launch vehicle and the launch angle was further analyzed. The results show that amplitudes of the transmitted load and stress inside the launcher will reduce when the launch angle is close to 90°. The modeling and analysis approaches proposed in this study can effectively support the optimal design of the launch device.

Cold launch  /  Launch vehicle  /  Multi-rigid-flexible-body dynamic  /  Simulation  /  Vibration
Di ZHOU, Yuanchun ZHOU, Huijuan WANG, Zhangjian MA, Shengpeng JIANG. Research on response characterstic and dynamic modeling of launch vehicle under the cold launch mode[J]. Journal of Mechanical Strength, 2025 , 47 (8) : 101 -107 . DOI: 10.16579/j.issn.1001.9669.2025.08.012
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Year 2025 volume 47 Issue 8
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.08.012
  • Receive Date：2023-12-19
  • Online Date：2026-03-19
  • Published：2025-08-15
Article Data
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History
  • Received：2023-12-19
  • Revised：2024-03-03
Affiliations
    1.Shanghai Mechatronic Engineering Institute, Shanghai 201109, China
    2.College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Corresponding:

ZHOU Yuanchun, E-mail：
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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