Method for computing instantaneous time lag and amplitude error of real-time hybrid simulation test

A technology of amplitude error and hybrid simulation, which is applied in the direction of calculation, complex mathematical operations, special data processing applications, etc., can solve problems such as instantaneous time lag and amplitude error that cannot be calculated in real-time hybrid simulation, so as to avoid damage to experimental components and improve The effect of the compensating effect

Active Publication Date: 2016-02-17
SOUTHEAST UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiency that the traditional evaluation method cannot calculate the instantaneous time lag and amplitude error of real-time hybrid simulation, and provide a method for calculating the instantaneous time lag and amplitude error of real-time hybrid simulation test, using the method of moving window function, Calculate the instantaneous time lag and amplitude error of real-time hybrid simulation, which can conduct online evaluation of the experimental effect of real-time hybrid simulation, avoid the damage of experimental components and possible personal injury caused by unreasonable compensation, and provide necessary information for compensation methods refer to

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  • Method for computing instantaneous time lag and amplitude error of real-time hybrid simulation test

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[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] A method for calculating the instantaneous time lag and amplitude error of a real-time hybrid simulation test, comprising the following steps:

[0029] The first step: Estimate the period of the structure, and predict whether the structure will appear nonlinear and the degree of nonlinearity in the experiment. The period of the structure can be estimated by methods such as energy method, equivalent mass method and vertex displacement method. For a relatively regular N-layer structure, the following approximate formula can also be used for calculation:

[0030] Frame structure: T=(0.08~0.10)N(1,a)

[0031] Frame shear structure: T=(0.06~0.08)N(1,b)

[0032] Shear wall structure: T=(0.06~0.08)N(1,c)

[0033] For the nonlinearity and degree of nonlinearity of the structure, it can be obtained by comparing the real-time hybrid simulation...

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Abstract

The invention discloses a method for computing instantaneous time lag and an amplitude error of a real-time hybrid simulation test. The method comprises the following steps: pre-estimating a structural period and nonlinearity degree to select a window function with proper length; carrying out window transform on computed displacement and measured displacement of real-time hybrid simulation according to the selected window function, computing time slag and an amplitude error on the window function as instantaneous time slag and an amplitude error at a final moment of the window function; moving the window function with time, computing instantaneous time slag and amplitude errors at different moments until the test is ended. The method disclosed by the invention can be used for carrying out online estimation on real-time hybrid simulation test effects, thereby avoiding the damage to test components caused by unreasonable compensation, and providing necessary information reference for a compensation method.

Description

technical field [0001] The invention is a method capable of calculating the instantaneous time lag and amplitude error of a real-time hybrid simulation test, which is used for online evaluation of the experimental effect of real-time hybrid simulation in the test, and avoids damage to experimental components and possible personal injuries caused by unreasonable compensation. damage, and provide a reference for compensation methods for real-time hybrid simulation experiments. Background technique [0002] The real-time hybrid simulation experiment method combines the advantages of the hybrid simulation experiment and the shaking table experiment, and can load the experimental structure in real time under large-scale or full-scale conditions, thereby effectively overcoming the size effect of the shaking table test and the pseudo-dynamic test. Problems that do not reflect the effect of velocity on structures. The experimental method, which divides the structure into two parts,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06F17/14
CPCG06F17/14G16Z99/00
Inventor 徐伟杰郭彤陈城
Owner SOUTHEAST UNIV
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