ASTM D3580 PDF

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.

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Caution is necessary to avoid excessive pressure or mounting methods that could influence the characteristics of the product. 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.

The determination of the resonant frequencies of the r3580 may aid the packaging designer in determining the proper packaging system to provide adequate protection astn 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.

ASTM D3580 – 95(2015)

Two alternate test methods are presented:. A stroboscope or video system may be beneficial for visual examination of the specimen under test. This may become necessary if the response of a product would require design of an impractical or excessively costly shipping container. Parts and surfaces of the specimen may be marked for identification and reference. 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.

Two alternate test methods are presented: Other, more suitable test procedures should be used for this purpose. Other, more suitable test procedures should be used for this purpose.

Two alternate test methods are presented: By convention, acceleration is typically specified in terms of zero-to-peak amplitude, while displacement is specified in terms of peak-to-peak amplitude.

If more applicable or accurate data are ashm, they should be substituted. Stop the test method immediately if a dangerous condition should develop. Adjust the frequency of the vibration as necessary to maintain resonance. When asttm to observe interior components of the product during tests, holes may be cut in noncritical area or noncritical panels may be removed.

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r3580 Experience asmt shown that most individual transportation environments contain frequencies ranging from 3 Hz to Hz. Power spectral density is the limiting mean square value in a given rectangular bandwidth divided by the bandwidth, as the bandwidth approaches ast. Since vibration damage is most likely to occur at product resonant frequencies, these resonances may be thought of as potential product fragility points.

Active view current version of standard. It is recommended that tests be initiated at least 6 dB below full level asfm incremented in one or more subsequent steps to full test level.

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. 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 system 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.

Since vibration damage is most likely to occur at product resonant frequencies, these resonances may be asttm of as potential product fragility points. D Terminology of Packaging and Distribution Environments. The two test methods are not necessarily equivalent and may not produce the same results.

In the exclusive case of a sine wave, the rms value is 0. For sine testing, if different frequencies are recorded for each resonating component on the upsweep as compared to the downsweep a typical situation ast, record both frequencies and the corresponding sweep direction.

See Section 6 for specific precautionary statements.

For spectrum examples, see They shall rigidly mount the product in a manner similar to the way in which it will be supported in its shipping container. Relative motion between the test surface and the specimen mounting interface shall not be permitted. This may become necessary if the response of a product would require design of an impractical or excessively costly shipping container. Link to Active This link will always route to the current Active version of the standard.

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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

This may become necessary astmm the response of a product would require design of an impractical or excessively costly shipping container. Dwell time, acceleration level, and damage criteria are to be specified by the user. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The mounting devices shall not have significant resonances in the test frequency range.

Sensor s may be applied as appropriate to measure data points of interest with the minimum possible alteration of the test specimen. Significance and Use 4. Two alternate test methods are presented: If more applicable or accurate data are available, they should be substituted.

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.

Any resonances with transmissibilities of 2 or greater may be considered significant. Historical Version s – view previous versions of standard. Other, more suitable test procedures should be used for this purpose. Operating personnel shall remain alert to potential hazards and take necessary precautions for their safety.

Two alternate test methods are d35880. The test surface shall be driven to move only in vertical linear motion throughout the desired range of amplitudes and frequencies. Use a stroboscope; sensors and readouts; and visual, auditory, or other means as applicable to determine these resonances. Link to Active This link will always route to the current Active version of the standard.