ASTM D3580 PDF

ASTM D3580 PDF

admin

September 29, 2020

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.

Author: Takasa Nelkree
Country: Madagascar
Language: English (Spanish)
Genre: Photos
Published (Last): 23 June 2013
Pages: 389
PDF File Size: 14.67 Mb
ePub File Size: 11.70 Mb
ISBN: 370-2-84291-220-8
Downloads: 56199
Price: Free* [*Free Regsitration Required]
Uploader: Faekinos

Therefore, the means used to fasten the product to the test surface must be of sufficient strength to keep it adequately secured. If more applicable or accurate data are available, they should be substituted.

Stop the test method immediately if a dangerous condition should develop. 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.

Other, more suitable test procedures should be used for this purpose. The mounting devices shall not have significant resonances in the test frequency range.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The determination of the resonant frequencies of the product may aid the packaging designer in determining the proper packaging adtm to provide adequate protection for the product, as well as providing an understanding of the complex interactions between the components of the product as they relate to expected transportation vibration inputs.

Active view current version of standard.

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

In the exclusive case of a sine wave, the rms value is 0. Acceleration levels sufficient to excite resonance normally range from 0. No other units of measurement are included in this standard. The determination of the resonant frequencies of the product may aid the packaging designer in determining the proper packaging system to provide adequate protection for the d35880, as well as providing an understanding of the complex interactions between the components of the product as they relate to expected transportation vibration inputs.

  EGGSMART MENU PDF

The two test methods are not necessarily equivalent and may not produce the same results. Operating personnel shall remain alert to potential hazards and take necessary precautions for their safety. 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.

Other, more suitable test procedures should be used for this purpose. Historical Version s – view previous versions of standard. It is possible that tests using random vibration may be more representative of the transport environment and may be conducted more quickly than sine tests.

Since vibration damage is most likely to occur at product resonant frequencies, these resonances may be thought of as potential product fragility points.

See Section 6 for specific precautionary statements. Caution is necessary to avoid excessive pressure or mounting methods that could influence the characteristics of the product.

Two alternate test methods are presented:. When necessary to observe interior components of the product during tests, holes may be cut in noncritical area or noncritical panels may be removed. Relative motion between the test surface and the specimen mounting interface shall not be permitted.

Record any resonant responses of the product. Record any resonant responses of the product, repeat the cycle if necessary.

ASTM D3580 – 95(2015)

Two alternate test methods are presented: Two alternate test methods are presented: This may become necessary if the response of a product would require design of an impractical or excessively costly shipping container. Two alternate test methods are presented: Significance and Use 4. D Terminology of Packaging and Distribution Environments. Starting at 3 Hz, vary the frequency of vibration at a continuous logarithmic rate of 0. Test duration, random spectrum, and damage criteria are to be specified by the user.

The test surface shall be driven to move only in vertical linear motion throughout the desired range of amplitudes and frequencies. If more applicable or d350 data are available, they should be substituted.

Since vibration damage is most likely to occur at product resonant frequencies, these resonances may be thought of astn potential product fragility points. Power spectral density is the limiting mean square value in a given rectangular bandwidth divided by the bandwidth, as the bandwidth approaches zero.

  CUNNINGHAM TRATADO DE FISIOLOGIA VETERINARIA PDF

ASTM D – 95() Standard Test Methods for Vibration (Vertical Linear Motion) Test of Products

This may become necessary if the response of a product would require design asrm an impractical or excessively costly shipping container. Whenever sufficient products are available, five or more replicate samples should be tested to improve the statistical reliability of the data obtained see practice E See Section 6 for specific precautionary statements.

Any resonances with transmissibilities of 2 or d3850 may be considered significant. 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 asttm. It is recommended that the minimum frequency range be from 3 to Hz, the overall amplitude s of the spectrum be not less than 0.

This may become necessary if the response of a product would require design of an impractical or excessively costly shipping container. For spectrum examples, see 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.

E3580 sine testing, if different frequencies are recorded for each ast, component on the upsweep as compared to the downsweep a typical situationrecord both frequencies and the corresponding sweep direction.

By convention, acceleration is typically specified in terms of zero-to-peak amplitude, while displacement is specified in terms of peak-to-peak amplitude. Use a stroboscope; sensors and readouts; and visual, auditory, or other means as applicable to determine these resonances.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations asgm to use.