爆炸冲击波存储测试装置结构设计及仿真分析
时间:2018-07-07 20:29 来源:毕业论文 作者:毕业论文 点击:次
| 摘要存储式测试装置具有便于安装、使用方便等优点，在爆炸冲击波测试中有着广泛的应用前景。由于爆炸现场的测试环境比较恶劣，存储测试装置的结构及力学响应特性严重影响着冲击波存储测试装置的测量可靠性及精度。论文从理论和仿真两方面，针对冲击波作用下存储测试装置的机械结构及力学响应特性进行了研究，并对冲击波存储测试装置的结构进行了设计和优化。 通过分析爆炸冲击波的地面传播特性，并考虑电路模块的外观尺寸、结构强度及安装携带的方便性等因素对存储测试装置的机械结构进行了总体配置，分别设计了盖板、保护外壳、上支撑座、附加环、下支撑座及安装底座。25391 利用有限元方法及ANSYS软件，仿真分析了爆炸场作用下的盖板尺寸及电路板的响应特性。建立了盖板的有限元模型，对爆炸场中盖板直径与厚度进行了仿真分析，确定了盖板直径与厚度。建立了电路板的有限元模型，对电路板进行了模态分析和瞬态分析，得到了其力学响应结果，据此设计了一种橡胶减震器，得到了减震效果。 关键词 存储测试装置 结构设计 有限元分析 关键词MIMU航向姿态参考系统MSINSGPS仿真组合导航卡尔曼滤波 毕业论文设计说明书外文摘要 Title Explosive blast storage testing device design and simulation analysis Abstract Explosive blast storage testing device is easy to install and use,and plays an important role in the blast tests.The structural and mechanical response of storage testing device make a serious impact on reliability and accuracy due to the harsh blast site testing environment.The structural and mechanical response of storage testing device are studied from both theory and simulation.And the structure of the blast storage testing device is designed and optimized. The mechanical structure of storage testing device is configured overall through analysis of blast propagation characteristics of the ground,the appearance of the circuit module size,structural strength,convenience of installation and other factors.The cover,the protective housing,the support seat,the additional ring,the support base and the mounting base are designed. The cover size and the response characteristics of circuit board in the field of explosion is emulated by using the finite element method and ANSYS software. A finite element model of the cover is obtained.The diameter and the thickness of the cover in the explosive field are emulated and obtained. A finite element model of the circuit board is built,and the mechanical response result are obtained. A kind of rubber shock absorber is designed accordingly and the damping effects are obtained. Keywords Storage testing device Structural design Finite Element Analysis 目 次 1 引言 1 1.1 课题研究的背景及意义 1 1.2 课题研究的国内外现状 2 1.2.1 冲击波存储测试装置结构发展现状 2 1.2.2 爆炸场分析发展现状 3 1.2.3 电路板结构动力学响应分析发展现状 3 1.3 本文的研究内容 4 2 存储测试装置的结构设计 5 2.1 近地冲击波理论研究 5 2.1.1 近地冲击波形成理论 5 2.1.2 近地冲击波传播理论 6 2.1.3 近地冲击波超压峰值 6 2.2 装置结构设计的基本要求 7 2.3 装置结构的总体布局 8 2.4 装置结构设计的关键问题 12 2.5 本章小结 13 (责任编辑：qin) |