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Operation procedure of cold and hot impact test chamber

type size:T|T
 Article From:未知EDIT:hongyuTIME:2018-09-11 18:56

Operation procedure of cold and hot impact test chamber
1. Conduct impact calibration until the waveform generated by two consecutive impacts acting on the simulated load reaches or exceeds the prescribed test conditions in at least one axial direction and meets the test tolerance requirements specified in the technical documents.
2. The simulated load is installed on the impact test machine according to the technical state similar to the sample.If the equipment is installed in vibration, the interval vibrator should be ensured during the impact test.If the impulse test machine input waveform is input in waveform control, special attention should be paid to the state of calibration and subsequent data processing details.
3. Select accelerometers and analytical techniques that meet or exceed relevant technical requirements.Remove the simulated load and install the sample onto the impact test machine.
In the working state, shock excitation is applied to the sample:
4. If the impact response spectrum specified in the specification is adopted.If a classical impulse is used, the sample should be subjected to input pulses in both directions.If the waveform of the impulse response spectrum satisfies both the inter-pulse process tolerance and the impulse response spectrum tolerance, considering the influence of polarity, it shall be carried out twice on each orthogonal axis, with a total of 6 impact tests.If there is an out-of-tolerance or out-of-tolerance in the time course of the test impulse and the impulse response spectrum, the adjustment should be continued until both trials meet the tolerance.
5. Record the necessary data to check whether the test meets or exceeds the required test conditions and meet the requirements of technical documents.These data include photographs of the test equipment, test records, and actual impact waveforms obtained from the data acquisition system.Samples of internally-installed vibration isolation components shall be measured to ensure that they do not occur in adjacent parts.



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