机载计算机频率响应仿真影响因素探讨  

Discussion on the Influencing Factor for Frequency Response Emulation of Airborne Computer

作　　者：郭建平[1] 张娅妮[1] 白振岳[1] 

机构地区：[1]中国航空计算技术研究所,西安710068

出　　处：《机械工程师》2012年第1期86-88,共3页Mechanical Engineer

摘　　要：仿真是机载计算机研制过程中重要的验证手段之一,仿真结果的正确性直接影响到研制产品的质量。文中介绍了机载计算机工作环境和强度仿真分析流程,对影响仿真分析结果的重要环节-频率响应分析进行了详细讨论。以MSC.Patran/Nastran为例,对频率响应分析中的求解方法、频率步长、阻尼等进行了详细说明,指出了在机载计算机强度仿真过程中上述参数的选择方法。Emulation is one of the most important validation method during the process of airborne computer development,the accuracy of which directly influence the quality of the product.The working condition of airborne computer and the flow of strength emulation was introduced in this paper.The frequency response analysis which was important to the result of emulation was discussed in detail.Solution method,frequency step-size and damping were explained detailedly as well as the selection system of the parameters mentioned above was pointed out while taking MSC.Patran/Nastran for example.

关 键 词：频率响应 直接法 模态法 阻尼 频率步长 随机振动 

分 类 号：TH113.1[机械工程—机械设计及理论]