Micro-vibration vibration isolator damping parameter and rigidity parameter measuring device

A technology of micro-vibration isolators and damping parameters, which is used in measuring devices, testing of machine/structural components, instruments, etc. to achieve stable and reliable performance, wide application range and convenient use.

Inactive Publication Date: 2013-10-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] It can be seen that these methods are not suitable for the measurement of damping parameters and stiffness parameters of micro-vibration isol

Method used

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  • Micro-vibration vibration isolator damping parameter and rigidity parameter measuring device
  • Micro-vibration vibration isolator damping parameter and rigidity parameter measuring device
  • Micro-vibration vibration isolator damping parameter and rigidity parameter measuring device

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[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] A device for measuring damping parameters and stiffness parameters of a micro-vibration isolator, including a rigid fixed table 1, a vibration exciter 2, a micro-vibration isolator 3, control equipment and test equipment, such as figure 1 Shown

[0027] The upper surface of the rigid fixed platform 1 is horizontally arranged for installing the vibration exciter 2 and the micro-vibration isolator 3. The micro-vibration isolator 3 has a cylindrical structure, and the front and rear ends are respectively connected to the load-bearing tool 6 and the vibration exciter 2 through the column-shaped adapter tool A4 and the column-shaped adapter tool B5, such as figure 2 Shown; Among them, the exciter 2 is fixedly installed on the rigid fixed platform 1 through the exciter 2 bracket. The load-bearing tooling 6 is composed of a bottom plate, two side plates, and a co...

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Abstract

The invention discloses a micro-vibration vibration isolator damping parameter and rigidity parameter measuring device. The micro-vibration vibration isolator damping parameter and rigidity parameter measuring device comprises a rigidity fixed platform, an exciter, a micro-vibration vibration isolator, a test device and a control device. The two ends of the micro-vibration vibration isolator are connected with a strength bearing tool and the exciter respectively so that the micro-vibration vibration isolator and the exciter can be fixed on the rigidity fixed platform. The rear end of the micro-vibration vibration isolator is provided with a first acceleration sensor and a third acceleration sensor, the front end of the micro-vibration vibration isolator is provided with a second acceleration sensor, and four force sensors are fixed on the front end face of the micro-vibration vibration isolator. The control device is used for controlling the shock excitation action of the exciter on the micro-vibration vibration isolator and for controlling the excitation displacement amplitude of the exciter through a measurement signal of the first acceleration sensor. The test device is used for conducting calculation according to a measurement signal of the second acceleration sensor, a measurement signal of the third acceleration sensor and measurement signals of the four force sensors under different types of excitation displacement amplitudes of the exciter to obtain a damping coefficient of the micro-vibration vibration isolator and a rigidity parameter of the micro-vibration vibration isolator. The micro-vibration vibration isolator damping parameter and rigidity parameter measuring device has the advantages of being stable and reliable in performance and small in error of test data.

Description

technical field [0001] The invention relates to the field of measuring damping parameters and stiffness parameters of micro-vibration isolators, specifically, it is a method for measuring the damping parameters and stiffness of micro-vibration isolators on the micron level and in various frequency ranges and exciting force ranges. parameter measurement device. Background technique [0002] The damping parameter C and the stiffness parameter K are important indicators of the vibration parameters of the vibration isolator, which are directly related to the vibration isolation performance of the vibration isolator. The damping parameters and stiffness parameters cannot be directly measured, but need to be measured indirectly. With the development of science and technology, micro-vibration has become a new development direction of vibration mechanics, and to achieve the control of micron-scale vibration, excellent vibration reduction and vibration isolation devices are needed. T...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 王杰赵寿根吴大方罗敏
Owner BEIHANG UNIV
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