缓冲系统振动特性的扫频测试  

Scanning Surveying of the Vibration Characteristics of Buffered Systems

作　　者：山静民[1] 陈满儒[1] 谭志明[1] 

机构地区：[1]西北轻工业学院,陕西咸阳712081

出　　处：《包装工程》2002年第4期113-116,共4页Packaging Engineering

摘　　要：为了获取缓冲系统的振动传递特性 ,在此引入瞬时功率谱密度的概念 ,采用扫频振动激励的方法 ,结合VC ++和MATLAB编程 ,对数据进行处理 ,在三维空间描述了激励信号和响应信号的瞬时功率谱和频率、时间的关系 。In order to determine the characteristics of vibration and its spreading throughout buffered systems, this article introduces a concept of 'instantaneous power spectrum density'. The work involves the scanning analysis of the vibrational intensity. The data are further analyzed using programming methods in Visual C++ and MATLAB. These methods have resulted in not only the understanding of the vibrational intensity and the response signals described as instantaneous intensity spectra and their relationships with time and frequency. Furthermore, the study results in an accurate determination of the curves to describe the rate of vibration transfer.

关 键 词：缓冲系统 振动特性 扫频测试 扫频振动 振动传递率 瞬时功率谱 非平衡随机过程 数字滤波器 缓冲包装 

分 类 号：TB485.1[一般工业技术—包装工程] TB487