A dynamic experiment device for basic structural parts in thermal and vibration environments and its static load loading method

Abstract

The invention discloses a dynamic experiment device and a static load loading method for basic structural parts in heat and vibration environments, belonging to the technical field of structural dynamic experiments. The device of the present invention uses fixtures and bases to realize the boundary conditions around the test object, and uses strong elastic ropes and dowel bars made of light-weight and high-rigidity materials to convert the tension of the elastic ropes into pressure on the structural parts to be tested. . The static load loading method is realistic and feasible, the static load and its error in the vibration process can be predicted and measured more accurately, the influence of heat is small, the influence of additional mass is small, the stability in the vibration environment is good, and the influence on the sound field is small.

Description

technical field [0001] The invention belongs to the technical field of structural dynamics experiments, and relates to a dynamics experiment device for basic structural parts and a static load loading method based on the device, in particular to a dynamics experiment device for basic structural parts in a thermal and vibration environment and based on Static loading method of the device Background technique [0002] The dynamic response of the basic structural parts of engineering structures under the combined effects of heat, static load, noise / vibration, etc. is a concern in fields such as machinery and aerospace engineering. However, there are technical difficulties in the experimental method and testing means, such as the determination of the applied static load, the stability of the static load under dynamic loads such as noise / mechanical excitation, the additional mass generated by the static load loading device, and the static load. The sensitivity of the loading dev...

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Problems solved by technology

However, there are technical difficulties in the experimental method and testing means, such as the determination of the applied static load, the stability of the static load under dynamic loads such as noise / mechanical excitation, the additional mass generated by the static load loading device, and the static load. The sensitivity of the loading device to the thermal environment and the interference of the static loading device on the sound field seriously affect the static loading effect and the accuracy of the experimental results.

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