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| Analytical calculation of gun tube under the action of new stress function |
| Received:May 09, 2012 Revised:December 28, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201401019 |
| KeyWord:electromagnetic launch barrel new normal stress lamè formula load pressure analytical solution |
| Author | Institution |
| 刘文 |
燕山大学 理学院, 秦皇岛 |
| 赵静一 |
燕山大学 先进锻压成形技术与科学教育部重点实验室, 河北省重型机械流体动力传输与控制实验室, 秦皇岛 |
| 刘峰 |
燕山大学 理学院, 秦皇岛 |
| 牛子佳 |
燕山大学 理学院, 秦皇岛 |
| 高玉娇 |
燕山大学 理学院, 秦皇岛 |
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| Abstract: |
| To solve the problem of error caused by the uniform pressure approximately instead of variable force of thick-walled about electro-magnetic launch for long a time,it provided hyperbolic sine function mathematical model of electro-magnetic launch barrel under the load pressure in three-dimensional,and constructed a special stress functions both satisfying boundary conditions and bi-harmonic equation,and derived the analytical solution of hyperbolic sine distribution pressure of the cylinder on the electro-magnetic launch barrel the constant force in the end of face,and also obtained the analytical solution and solved the limit of electro-magnetic launch barrel pressure along the axial direction,and finally recorded guns fired when the barrel of strain values by the static strain tester and compared theoretical and experimental results,it can be seen that the both have a higher coincidence degree,which laid a solid foundation about solving the deformation calculation of the arbitrary distribution pressure of electro-magnetic launch barrel and its practice so as to extend barrel life for the future. |
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