一种非线性系统的弹簧力确定方法  

The Determination Method of Non-linear System's Spring Force

作　　者：秦锦 张玉杰[1] 高宏[1] 

机构地区：[1]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2016年第7期53-56,共4页Aeronautical Science & Technology

摘　　要：针对地面共振试验中出现的结构固有频率的不恒定问题,提出了一种结构刚度非线性系统的分析方法。可以由试验测得的结构频率和激励力幅值,得出系统的非线性弹簧力函数,并确定系统弹簧性质,最后通过算例分析,验证了该方法的有效性及可行性。With the problem of structural natural frequency is not a constant in ground resonance test, an analysis method for non-linear structural stiffness system was suggested. Through this method, force function and properties of non-linear system can be obtained with measured structural frequency and force amplitude. Finally the example demonstrated the effectiveness and feasibility of the method.

关 键 词：非线性 弹簧 频率 激励 传递函数 

分 类 号：TH135[机械工程—机械制造及自动化]