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| Numerical Simulation on Influences of Underwater Load on Structure of Underwater Vertical Launching Vehicle |
| Received:March 13, 2020 Revised:April 16, 2020 |
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| DOI：10.7643/issn.1672-9242.2020.07.001 |
| KeyWord:underwater loading vertical launching structure strains and stresses displacement |
| Author | Institution |
| LI Yu-jie |
Unit 41 of PLA 91550, Dalian , China |
| LIU Wen-yi |
Unit 41 of PLA 91550, Dalian , China |
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| Abstract: |
| The paper aims to study the effects of underwater loading over the structure of underwater vertical launching vehicle. The pressure field around the underwater vehicle was calculated with fluid analysis software; and the finite element model was built with software of finite element analysis; the pressure field was loaded into the finite element model; the stress and the deformation of the underwater vehicle in different time of upward motion in the water was simulated and calculated. During the upward motion of the underwater vehicle, the effect of water on the axial pressure of spring was reduced; the bending moment and shear farce of it increased. The acceleration and velocity was reduced. The pressure loading of water on the underwater vehicle was reduced. After the vehicle was launched, there was launching loading at the tail, and the deformation of loading also disappeared accordingly Because of attack angel, the underwater vehicle has both horizontal and vertical loading, so the underwater loading of vertical underwater is more complex. |
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