A multi-axis vibration and shock composite environmental test system

Abstract

The invention discloses a multi-shaft vibration and impact compound environment test system. The multi-shaft vibration and impact compound environment test system comprises a first impact generator, asecond impact generator, a first vibration generator, a second vibration generator, a third vibration generator, a decoupling device, a signal separator, an impact control instrument and a vibrationcontrol instrument, wherein the first impact generator and the second impact generator conduct impact excitation in the second radial direction separately, thus a first impact response signal and a second impact response signal are generated, the first vibration generator and the second vibration generator conduct vibration excitation in the first radial direction separately, thus a first vibration response signal and a second vibration response signal are generated, the third vibrator conducts vibration excitation in the axial direction, thus a third vibration response signal is generated, the coupling device is use for conducting rigidity limiting on the degree of freedom of the axial rotation, the signal separator is provided with 5 input channels and 2 output channels, the input channels are used for receiving the first vibration response signal, the second vibration response signal, the third vibration response signal, the first impact response signal and the second impact response signal respectively, and the output channels are used for outputting a first separating signal and a second separating signal; the impact control instrument is used for controlling the first impactgenerator and the second impact generator to conduct impact excitation; the vibration control instrument is used for conducting vibration excitation on the first vibration generator, the second vibration generator and the third vibration generator.

Description

technical field [0001] The invention relates to the field of environment and reliability tests, in particular to a multi-axis vibration and impact composite environment test system. Background technique [0002] For a long time, the multi-axial vibration and impact compound environment of the test piece has been verified one by one. The most cutting-edge technology is the multi-axis vibration test technology. Although this technology can also assess the reliability of the test piece to a certain extent , but it is impossible to simulate the multi-axis vibration and shock composite environmental test, and the existing technology cannot solve the coupling problem of vibration and shock. Some failure modes are difficult to excite, and there are great hidden dangers. [0003] At present, research on multi-axis vibration and shock composite environmental test technology has not yet been carried out in this field, and a new research and design must be carried out. Contents of th...

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Problems solved by technology

[0002] For a long time, the multi-axial vibration and impact compound environment of the test piece has been verified one by one. The most cutting-edge technology is the multi-axis vibration test technology. Although this technology can also assess the reliability of the test piece to a certain extent , but it is impossible to simulate the multi-axis vibration and shock composite environmental test, and the existing technology can not solve the coupling problem of vibration and shock. Some failure modes are difficult to excite, and there are great hidden dangers

[0003] At present, research on multi-axis vibration and shock composite environmental test technology has not yet been carried out in this field, and new research and design must be carried out

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