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Basic structure element dynamic experiment device for heat and vibration environments and loading method of static load thereof

A technology of basic structure and experimental device, applied in the testing of machine/structural components, measuring device, testing of mechanical components, etc., can solve the problem of sensitivity affecting static load loading effect and the accuracy of experimental results.

Active Publication Date: 2014-12-31
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
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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.

Method used

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  • Basic structure element dynamic experiment device for heat and vibration environments and loading method of static load thereof
  • Basic structure element dynamic experiment device for heat and vibration environments and loading method of static load thereof
  • Basic structure element dynamic experiment device for heat and vibration environments and loading method of static load thereof

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0044] see figure 1 , the present invention is used for the dynamic experiment device of basic structural part in heat, vibrating environment, comprises to-be-tested structural part 7, base 1 and fixture 2, strong elastic rope 5, dowel bar 6, capstan 4, heat source 3. The structural parts to be tested belong to the basic structure of machinery, aerospace and other devices, such as plates, beams, etc., and are small in size to ensure the applicability of the static load loading method of the present invention.

[0045] A group of bases 10 are symmetrically arranged on both sides of the base 1, and a capstan 4 is provided on the base 10, and an elastic cord 5 is fixed between the two capstans 4, and the telescopic length and angle of the elastic cord 5 are controlled by the capstan 4 (the elast...

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Abstract

The invention discloses a basic structure element dynamic experiment device for heat and vibration environments and a loading method of a static load thereof, and belongs to the technical field of structure dynamic experiment. The device has the advantage that the boundary condition of the surrounding of a testing object is realized by a clamp and a base, and the tension force of an elastic rope is converted into the pressure of the tested structure member by the highly elastic rope and a force transfer rod which is made of light-weight and high-rigidity material. The static loading method has the advantages that the implementation is feasible, the static load and the error in the vibration process can be accurately predicted and measured, the heat effect is little, the influence by additional mass is little, the stability in the vibration environment is good, and the influence on sound fields is little.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 李跃明王迪胡君逸耿谦
Owner XI AN JIAOTONG UNIV
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