| 丁振豪,王轲,王赫哲.航炮炮舱结构的炮振响应分析[J].装备环境工程,2022,19(9):7-11. DING Zhen-hao,WANG Ke,WANG He-zhe.Analysis of Vibration Response of Aircraft Gun Cabin Structure[J].Equipment Environmental Engineering,2022,19(9):7-11. |
| 航炮炮舱结构的炮振响应分析 |
| Analysis of Vibration Response of Aircraft Gun Cabin Structure |
| |
| DOI：10.7643/issn.1672-9242.2022.09.002 |
| 中文关键词: 冲击载荷 ALE方法 流固耦合 炮舱 冲击响应中图分类号:TJ85 文献标识码:A 文章编号:1672-9242(2022)09-0007-05 |
| 英文关键词:impact load ALE method fluid-structure interaction gun cabin impact response |
| 基金项目:国家自然科学基金(51775270)；江苏高校优势学科建设工程资助项目 |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 获得航炮发射时炮舱结构的动响应。方法 依据火炮发射原理，使用化学爆炸模拟炮口冲击波，建立航炮发射时炮口冲击载荷的表达模型。利用ALE方法处理高压流动空气与炮舱表面的流固耦合问题，通过数值计算获得发射气流冲击载荷作用下炮舱结构的表面压力分布与动响应。利用试验结果，修正载荷与炮舱模型的有关参数。结果 计算得到的炮舱动响应与试验结果相比较，误差在可接受范围内。结论 建立了一种使用化爆模拟冲击波进行航炮炮舱结构炮振响应仿真计算的技术方法，初步确定了结构危险部位，为后续炮舱结构减振设计创造了条件。 |
| 英文摘要: |
| The paper aims to obtain the dynamic response of the gun cabin structure when the gun is fired. According to the principle of artillery firing, the muzzle blast wave is simulated by the chemical explosion to establish the expression model of the muzzle impact load. ALE method is used to deal with the fluid-structure interaction between high-pressure flowing air and the surface of the cabin. The surface pressure distribution and dynamic response of the gun cabin structure under the impact load of launching air are obtained by numerical calculation. The test results are used to correct the relevant parameters of the load and the gun cabin model.Compared with the experimental results, the calculated dynamic response of the gun cabin is within the acceptable error range.Thus, a technical method for calculating the vibration response of gun cabin structure using the simulated blast wave of the chemical explosion is established. which initially determines the dangerous position of the structure and creates conditions for the subsequent vibration reduction design of the gun cabin structure. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
