本文件规定了测量机械迁移率和其他频率响应的程序 通过不受干扰的激励器产生的脉冲力激励的结构函数 连接到被测结构上。 它适用于测量机动性、加速度或动态柔顺性，无论是作为驾驶 点测量或作为传递测量，使用冲击激励。其他激励方法， 如阶跃松弛和瞬态随机性，导致信号处理要求与之类似 影响数据。然而，此类方法不在本文件范围内，因为它们涉及 使用连接到结构上的励磁机。 所涉及的信号分析方法都基于离散傅里叶变换（DFT），该变换 主要由快速傅里叶变换（FFT）算法执行。这种范围限制是基于 仅仅依靠实施这些方法的设备的广泛可用性 使用这些方法的经验。目前并不打算排除使用其他方法 正在开发中。交叉引用:ISO 2041ISO 7626-2:2015ISO 7626-1:2011购买本文件时提供的所有当前修订版均包含在购买本文件中。

This document specifies procedures for measuring mechanical mobility and other frequency-response functions of structures excited by means of an impulsive force generated by an exciter which is not attached to the structure under test. It is applicable to the measurement of mobility, accelerance or dynamic compliance, either as a driving point measurement or as a transfer measurement, using impact excitation. Other excitation methods, such as step relaxation and transient random, lead to signal-processing requirements similar to those of impact data. However, such methods are outside the scope of this document because they involve the use of an exciter which is attached to the structure. The signal analysis methods covered are all based on the discrete Fourier transform (DFT), which is performed mostly by a fast Fourier transform (FFT) algorithm. This restriction in scope is based solely on the wide availability of equipment which implements these methods and on the large base of experience in using these methods. It is not intended to exclude the use of other methods currently under development.Cross References:ISO 2041ISO 7626-2:2015ISO 7626-1:2011All current amendments available at time of purchase are included with the purchase of this document.