Stability Characteristics and Control Technology of Torpedo-Parachute System

CHENG Wenxin; ZHANG Junfeng; WANG Shuai; LIU Jian

doi:10.11993/j.issn.2096-3920.2023-0021

Volume 31 Issue 3

Jun 2023

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Article Navigation > Journal of Unmanned Undersea Systems > 2023 > 31(3): 488-494

CHENG Wenxin, ZHANG Junfeng, WANG Shuai, LIU Jian. Stability Characteristics and Control Technology of Torpedo-Parachute System[J]. Journal of Unmanned Undersea Systems, 2023, 31(3): 488-494. doi: 10.11993/j.issn.2096-3920.2023-0021

Citation:

CHENG Wenxin, ZHANG Junfeng, WANG Shuai, LIU Jian. Stability Characteristics and Control Technology of Torpedo-Parachute System[J]. Journal of Unmanned Undersea Systems, 2023, 31(3): 488-494. doi: 10.11993/j.issn.2096-3920.2023-0021

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Stability Characteristics and Control Technology of Torpedo-Parachute System

doi: 10.11993/j.issn.2096-3920.2023-0021

1.
Program Management Center of Naval Armament Department, Beijing 100071, China
2.
The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China
3.
Unit 92840^th, the People’s Liberation Army of China, Qingdao 266404, China

Received Date: 2023-03-07
Accepted Date: 2023-05-17
Rev Recd Date: 2023-04-18

Available Online: 2023-05-24

Abstract

Abstract

The safety of a rocket-assisted torpedo entering water becomes more sensitive to the water-entry angle as the water-entry speed of the torpedo increases. Conical pendulum motion is likely to occur during the descent of the torpedo-parachute system. The pendulum movement causes the torpedo to have an excessively large angle of attack when it enters the water, resulting in a large impact load that damages the torpedo. To prevent structural damage to the torpedo as it enters the water, it is necessary to reduce the angle of attack before the torpedo enters the water. In this study, the multi-body motion simulation model of the torpedo system and the attitude-control strategy based on pulse attitude control engine are combined to analyze the attitude-control technology of the torpedo system. Simulation results indicated that when the frequency of the conical pendulum motion of the parachute was close to that of the torpedo, the torpedo had obvious conical pendulum motion, and the influence of the parachute on the torpedo could be significantly reduced by introducing the attitude-control process to change the conical pendulum frequency of the torpedo. Thus, under certain conditions, attitude control of the torpedo with the parachute can achieve feasible results.
- rocket-assisted torpedo,
- torpedo-parachute system,
- attitude control engine

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References(10)

References

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