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| Limit Pressure Property of Vertical Launcher Exhaust Chimney |
| Received:April 19, 2017 Revised:September 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.09.011 |
| KeyWord:heat launch exhaust chimney normal launching unexpected ignition limit pressure |
| Author | Institution |
| REN Ke-liang |
713 Research Institute of China Shipbuilding Industry Corporation, Zhengzhou, , China |
| WU Li-min |
713 Research Institute of China Shipbuilding Industry Corporation, Zhengzhou, , China |
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| Abstract: |
| Objective To study limit pressure property of exhaust chimney, mechanical property of the exhaust chimney in unexpected ignition of missile and the safety of missile launching. Methods A simulation model for limit pressures of exhaust chimney was built. Water pressure experiment and launching experiment were carried out to obtain date on limit pressure of the exhaust chimney in different types of test. Results The design pressure of the exhaust chimney in abnormal launching was 0.3 MPa. The stress of the exhaust chimney surpassed the maximum tensile limit was 0.5 MPa. The structure was destroyed at 0.58 MPa in the water pressure experiment. The limit pressure of the exhaust chimney was 0.24 MPa in unexpected ignition. Conclusion The limit pressure of exhaust chimney meets the requirements of normal launching and unexpected ignition. The design allowance of the exhaust chimney is enough. |
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