Measurement method of junction surface dynamic parameters

A technology of dynamic parameters and measurement methods, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of parameter identification without considering the degree of freedom with rotation angle.

Inactive Publication Date: 2015-02-18
陈振富
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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for measuring the dynamic parameters of the joint surface in structural dynamic modeling, aiming at solving the problem that the current parameter identification method usually only considers the form of the longitudinal vibration of the structure, that is, the joint surface has only one degree of freedom in one direction , does not consider the problem of identification with rotation angle degree of freedom parameters

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  • Measurement method of junction surface dynamic parameters
  • Measurement method of junction surface dynamic parameters
  • Measurement method of junction surface dynamic parameters

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Embodiment Construction

[0077] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0078] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0079] The measurement method of the transfer with rotation angle in the structural dynamics modeling of the embodiment of the present invention comprises the following steps:

[0080] S101: Fabricate the first substructure B and the third substructure D, conduct a modal test, and test the transfer functions of the first substructure B and the third substructure D respectively;

[0081] s102: Carry out a modal test to test the transfer functions of the first sub...

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Abstract

The invention discloses a measurement method of junction surface dynamic parameters, and provides a convenient measurement method of junction surface dynamic parameters, which can obtain a transfer function of a middle second substructure (a junction surface) after analysis by measuring transfer functions of an integral junction structure formed by jointing a first substructure and a third substructure with a second substructure through the junction surface, the first substructure and the third substructure. The measurement method establishes relations between transfer functions of a junction surface substructure and the integral junction structure and non-junction surfaces, and adopts a lateral displacement transfer function to replace a transfer function of a structure with a corner, thereby obtaining the junction surface dynamic parameters after analysis by measuring a lateral translation displacement transfer function. The method is applied to the measurement of the junction surface dynamic parameters, is simple, convenient to operate, and solves the problem that the transfer function of a structure with a corner is difficult to measure.

Description

technical field [0001] The invention belongs to the technical field of structural dynamics parameter testing, in particular to a method for measuring dynamic parameters of joint surfaces in structural dynamics modeling. Background technique [0002] The parameter identification problem is an extremely important problem in structural dynamics modeling, and many researchers have done a lot of research on the parameter identification of the joint surface. [0003] However, some current methods usually only consider the form of longitudinal vibration of the structure, that is, the joint surface has only one degree of freedom in one direction, and does not consider the identification of parameters with rotational angle degrees of freedom. Contents of the invention [0004] The purpose of the embodiment of the present invention is to provide a method for measuring the dynamic parameters of the joint surface in structural dynamic modeling, aiming at solving the problem that the c...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 陈振富危小灵甘元初陶秋旺
Owner 陈振富
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