共找到 1380 条与 噪声、振动测试方法 相关的标准,共 92 页
Acoustics -- Determination of sound power levels and sound energy levels of noise sources using sound pressure -- Precision methods for anechoic rooms and hemi-anechoic rooms
The document specifies a method for the simplified determination of the insertion loss of duct silencers intended for use with flows with velocities of 15 m/s or less. It is applicable for silencers with circular cross sections and diameters between 80 mm and 2000 mm and for sile
Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method (ISO 11691:2020); German version EN ISO 11691:2020
Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 3: Reference tyres
This document specifies a noise test code for determining, efficiently and under standardized conditions, the common noise emission characteristics of portable, hand-held, combustion engine powered forest and garden machines, and specific requirements for chain-saws, brush-cutters, grasstrimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden blowers/vacuums/ knapsack mist blowers. Noise emission characteristics include the A-weighted emission sound pressure level at the operator position and the A-weighted sound power level. Noise test codes as described in this document enable the manufacturer to verify the effort regarding low noise design.
Forestry and gardening machinery - Noise test code for portable hand-held machines with internal combustion engine - Engineering method (Grade 2 accuracy)
Le présent document s'applique pour la détermination du bruit aérien des aspirateurs à sec qui fonctionnent sur secteur et des aspirateurs à sec sans cordon destinés à un usage domestique ou dans des conditions analogues à celles des foyers domestiques.Le présent document doit êt
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-1 : particular requirements for dry vacuum cleaners
Acoustics. Measurement of insertion loss of ducted silencers without flow. Laboratory survey method
This document specifies the conditions for obtaining reproducible and comparable measurement results of the airborne sound emitted by vessels of all kinds, on inland waterways and in ports and harbours, except powered recreational craft as specified in the ISO 14509 series. This document is applicable to sea-going vessels, harbour vessels, dredgers, and all watercraft, including non-displacement craft, used or capable of being used as a means of transport on water. There are no limitations to the application of this document with regard to speed, length and height of vessels, as long as the ship is determined to act like a point source at the reference distance of 25 m. All noise data obtained in accordance with this document are referred to a reference distance of 25 m.
Acoustics - Measurement of airborne sound emitted by vessels on inland waterways and harbours
Domaine d'applicationLe présent document spécifie une méthode de substitution en laboratoire pour déterminer la perte d'insertion, sans écoulement, de silencieux circulaires et rectangulaires en conduit, essentiellement absorbants, ainsi que d'autres éléments en conduit destinés
Acoustics - Measurement of insertion loss of ducted silencers without flow - Laboratory survey method
Acoustics. Recommended practice for the design of lownoise workplaces containing machinery. Noise control measures
Acoustics. Recommended practice for the design of low-noise workplaces containing machinery. Noise control strategies
This document specifies a method for the calculation of aircraft noise immission occurring in the vicinity of airports.
Acoustics - Determination of aircraft noise immission at airports - Part 1: Calculation method; Text in German and English
Code for Noise and Vibration Control of Subway
The document provides requirements for the electroacoustical performance of instruments (that can be components of a complete system) for measurement of the sound produced by aircraft in flight or by an aircraft engine installed on an outdoor test stand. Methods are also indicated by which the performance of such instruments can be tested periodically.
Electroacoustics - Instruments for measurement of aircraft noise - Performance requirements for systems to measure sound pressure levels in noise certification of aircraft (IEC 61265:2018); German version EN IEC 61265:2018
The document provides specific guidance for measuring and evaluating the severity of vibration of machine sets in hydraulic power generating and pump-storage plants measured in situ. It consideres both the vibration of non-rotating parts, such as casing and bearings, and the radial vibration on the shafts.
Mechanical vibration - Measurement and evaluation of machine vibration - Part 5: Machine sets in hydraulic power generating and pump-storage plants (ISO 20816-5:2018)
This document defines terms and expressions unique to the areas of mechanical vibration, shock and condition monitoring.
Mechanical vibration, shock and condition monitoring - Vocabulary
The document provides specific guidance for assessing the severity of vibration measured on both the bearing housings and the shafts of gas turbines in situ. The criteria provided in this document apply to land-based gas turbines with power outputs greater than 3 MW and a normal operating speed of 3000 r/min to 30000 r/min. This part of ISO 20816 provides specific guidance for evaluating the severity of in-situ, broad-band vibration measured radial (i.e. transverse) to the shaft axis on all main bearing housings or pedestals or on the shaft and in the axial direction on thrust bearings. Two criteria are provided for assessing the machine vibration when operating under steady state conditions. One criterion considers the magnitude of the observed vibration; the second considers changes in the magnitude. In addition, different criteria are provided for transient operating conditions, such as run-up and coast-down.
Mechanical vibration - Measurement and evaluation of machine vibration - Part 4: Gas turbines in excess of 3 MW, with fluid-film bearings (ISO 20816-4:2018)
Mechanical vibration - Measurement and evaluation of machine vibration - Part 4: Gas turbines in excess of 3 MW, with fluid-film bearings
Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions; Amendment 1
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