This standard is issued under the fixed designation D ; the number 1 These test methods are under the jurisdiction of ASTM Committee D on. Find the most up-to-date version of ASTM D at Engineering ASTM D Standard Test Methods for Vibration (Vertical Linear Motion) Test of Products 产 1. Scope These test methods cover.
|Published (Last):||15 May 2005|
|PDF File Size:||2.78 Mb|
|ePub File Size:||5.56 Mb|
|Price:||Free* [*Free Regsitration Required]|
Other, more suitable test procedures should be used for this purpose. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Dwell time, acceleration level, and damage criteria are to be specified by the user. If more applicable or accurate data are available, they should be substituted.
In the exclusive case of a sine wave, the rms value is 0. Test duration, random spectrum, and damage criteria are to d380 specified by the user. If more applicable or accurate data are available, they should be substituted.
ASTM D – 95() Standard Test Methods for Vibration (Vertical Linear Motion) Test of Products
Significance and Use 4. It is recommended that tests be initiated at least 6 dB below full level and incremented in one or more subsequent steps to full test level. Record any resonant responses of the product, repeat the cycle if necessary. Link to Active This link will always route to the current Active version of the standard. By convention, acceleration is typically specified in terms of zero-to-peak amplitude, while displacement is specified in terms of peak-to-peak amplitude.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Relative motion between the test surface and the specimen mounting interface shall not be permitted. Other, more suitable test procedures should be used for this purpose.
Two alternate test methods are presented:. The mounting devices shall not have significant resonances in the test frequency range. For sine testing, if different frequencies are recorded for each resonating component on the upsweep as compared to the downsweep a typical situationrecord both frequencies and the corresponding sweep direction. Link to Active This link will always route to the current Active version of the standard.
Active view current version of standard. Other, more suitable test procedures should be used for this purpose. The test surface shall be driven to move only in vertical linear motion throughout the desired range of amplitudes and frequencies.
For sine testing, the frequency sweep may be interrupted or reversed if necessary for short time periods in order to properly identify a resonating component. Mount the accelerometer to either the top or bottom of the test surface, as close to the test item as possible, or in a location which produces data representative of table motion.
Adjust the frequency of the vibration as necessary to maintain resonance. Record any resonant responses of the product.
ASTM D3580 – 95(2015)
Operating personnel shall remain alert to potential hazards and take necessary precautions for their safety. It is recommended that the minimum frequency range be from 3 to Ast, the overall amplitude s of the spectrum be not less than 0.
When necessary to observe interior components of the product during tests, holes may be cut in noncritical area or noncritical panels may be removed. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
See Section 6 for specific precautionary statements. Two alternate test methods are presented: Two alternate test methods are presented: Starting at 3 Hz, vary the frequency of vibration at a continuous logarithmic rate of 0.
ASTM D 产品振动实验的试验方法(垂直正弦曲线运动)_百度文库
Power spectral density is the limiting mean square value in a given rectangular bandwidth divided by the bandwidth, as the bandwidth approaches zero. Caution is necessary to avoid excessive pressure or mounting methods that could influence the characteristics of the product.
Parts and surfaces of axtm specimen may be marked for identification and reference. The two test methods are not necessarily equivalent and may not produce the same results. This time is dependent upon the characteristics of the vibration test machine and control system, the setup, and the weight and characteristics of the test specimen.
The instantaneous magnitudes of random vibration are not prescribed for any given instant in time, but instead are prescribed by a probability distribution function, the integral of which over a given magnitude range will give the probable percentage of the time that the magnitude will fall within that range.
Two alternate test methods are presented:.