共找到 1127 条与 振动、冲击和振动测量 相关的标准,共 76 页
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. Impact excitation is also widely used to obtain uncalibrated frequency-response information. For example, a quick impact test which obtains approximate natural frequencies and mode shapes can be quite helpful in planning a random or sinusoidal test for accurate mobility measurements. These uses of impact excitation to obtain qualitative results can be a first stage for mobility measurements. This document is limited to the use of impact excitation techniques for making accurate mobility measurements.
Mechanical vibration and shock — Experimental determination of mechanical mobility — Part 5: Measurements using impact excitation with an exciter which is not attached to the structure
ISO 7626-2:2015 specifies procedures for measuring linear mechanical mobility and other frequency-response functions of structures, such as buildings, machines and vehicles, using a single-point translational vibration exciter attached to the structure under test for the duration of the measurement. It is applicable to measurements of mobility, accelerance, or dynamic compliance, either as a driving-point measurement or as a transfer measurement. It also applies to the determination of the arithmetic reciprocals of those ratios, such as free effective mass. Although excitation is applied at a single point, there is no limit on the number of points at which simultaneous measurements of the motion response may be made. Multiple-response measurements are required, for example, for modal analyses.
Mechanical vibration and shock — Experimental determination of mechanical mobility — Part 2: Measurements using single-point translation excitation with an attached vibration exciter
This document establishes requirements to ensure appropriate exchange of information between manufacturers and users of auxiliary tables with a view to working out related specifications and possibly to comparing, in an objective way, the characteristics supplied by the manufacturers of auxiliary tables and associated guidance systems. This document is applicable to auxiliary tables which include slip tables and head expanders. It does not cover auxiliary tables with several degrees of freedom. This document provides three levels of description of the test equipment, as follows: a) minimum level; b) medium level; c) high level. This document gives a list of characteristics to be specified for each level of description.
Auxiliary tables for vibration generators — Methods of describing equipment characteristics
4G 动态血压监测技术要求的设备架构、数据分类及分级、技术要求、试验方法、信息、通信及服务器安全
Technical requirements for 4G dynamic blood pressure monitoring
BS ISO 16063-21:2003/AMD 2 Methods for the calibration of vibration and shock transducers - Part 21: Vibration calibration by comparison to a reference transducer. AMENDMENT 2
Condition monitoring and diagnostics of machines — Data interpretation and diagnostics techniques — Part 2: Data-driven applications
Methods for the calibration of vibration and shock transducers — Part 41: Calibration of laser vibrometers
Mechanical vibration and shock — Experimental determination of mechanical mobility — Part 2: Measurements using single-point translation excitation with an attached vibration exciter
Methods for the calibration of vibration and shock transducers — Part 21: Vibration calibration by comparison to a reference transducer
Shock and vibration measurements — Characteristics to be specified for seismic pick-ups
Mechanical vibration and shock — Characterization of the dynamic mechanical properties of visco-elastic materials — Part 2: Resonance method
Mechanical vibration and shock — Signal processing — Part 1: General introduction
Mechanical vibration and shock — Signal processing — Part 2: Time domain windows for Fourier Transform analysis
Methods for the calibration of vibration and shock transducers — Part 11: Primary vibration calibration by laser interferometry
Mechanical vibration and shock — Characterization of the dynamic mechanical properties of visco-elastic materials — Part 3: Cantilever shear beam method
Methods for the calibration of vibration and shock transducers — Part 17: Primary calibration by centrifuge
Methods for the calibration of vibration and shock transducers — Part 12: Primary vibration calibration by the reciprocity method
Vibration generating machines — Guidance for selection — Part 1: Equipment for environmental testing
Methods for the calibration of vibration and shock transducers — Part 22: Shock calibration by comparison to a reference transducer
Mechanical shock — Testing machines — Characteristics and performance
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号