机构

• 力学研究所 [1]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2012 [1]
• 2010 [1]

学科主题

• 固体力学::结构力学 [1]

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 薄板弯曲大变形高阶非线性偏微分方程推导与优化算法研究 期刊论文  OAI收割 物理学报=Acta Physica Sinica, 2012, 卷号: 61, 期号: 18, 页码: 180201 作者:  侯祥林;  郑夕健;  张良;  刘铁林;  Hou, XL 收藏  |  浏览/下载：118/0  |  提交时间：2013/01/18 higher-order nonlinear partial differential equations  thin plate-bending large deformation  dynamic design variables optimization method  program design   Optimal design of strap-down inertial navigation support under random loads (EI CONFERENCE) 会议论文  OAI收割 2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China 作者:  Li M. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 In order to realize miniaturization and light weight of the strap-down inertial navigation system  and then to make sure that it works well under random loads  optimal design is applied to the strap-down inertial navigation support with the methods of topology optimization and size optimization. Firstly  based on the installation requirement of devices and connection requirement of the support and the carrier  the initial structure of the support is designed. Topology optimization with FEA software ANSYS is adopted on the initial structure to get the basic one. Then 5 critical sizes are chosen as design variables  and the support structure is optimized by means of size optimization to reach light weight with satisfying the requirement of dynamic stiffness. Finally  random vibration analysis is applied to the initial structure. In the mean time  random vibration test is carried out to qualify the analysis method. After the qualification  a random vibration analysis is applied to the optimized support structure to get the rms of displacement response and acceleration response of the support to validate whether the optimized structure is appropriate. The results indicate that the dynamic stiffness of the optimized support structure satisfies the design requirements  and its weight is lighter 49.38% than that of the initial one. This research can be a reference to the structure design of supports under random loads  and the result has been applied to the development and manufacture of a prototype aerocraft. 2010 IEEE.