Method and device for calculating load, computer device, and readable storage medium
A calculation method and a calculation device technology, applied in the direction of calculation, design optimization/simulation, special data processing applications, etc., can solve problems such as increased coefficient matrix ill-conditioning, difficulty in solving equations, low calculation efficiency, etc., to simplify calculations and reduce calculations Load, efficiency improvement effect
Pending Publication Date: 2018-12-04
ANHUI TRANSPORTATION HLDG GRP CO LTD
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[0006] The embodiment of the present invention provides a load calculation method, which aims to solve the problem that the existing structural external load identification method has too many dimensions of the equation system to be solved, too many coefficients to be obtained, and the ill-conditioned coefficient matrix increases accordingly, resulting in the equation It is very difficult and computationally inefficient to solve the problem of
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[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0049] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a" and "the" are also intended to include plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0050] It should be understood that although the terms f...
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The invention is suitable to be used in the technical field of structure health monitoring, and provides a load calculation method. The method comprises: obtaining dynamic response of a structure; according to the dynamic response, establishing a structure response equation; based on finite element analysis, introducing a shape function to simplify the structure response equation, and converting the equation to a following dynamic load time history equation; performing equation deformation on the dynamic load time history equation, to obtain a corresponding matrix equation; converting the matrix equation to Tikhonov regularization solution, to obtain a stable solution of regularization; and substituting the solution of regularization into calculation and outputting an unknown load of the structure. Carrying out the method can simplify solution load information and convert the solution load information to solution of a shape function coefficient, so as to greatly reduce the number of to-be-solved variables, simplify calculation of the equation, and effectively improve efficiency of calculation. Through the regularization solution, the stable solution of regularization is obtained, and a problem of unstable solution existed in a conventional load identification method is solved.
Description
technical field [0001] The invention belongs to the technical field of structural health monitoring, and in particular relates to a load calculation method, device, application, computer device and storage medium. Background technique [0002] Structural external load identification is an important aspect in the structural health monitoring system, and plays an important role in structural safety maintenance and safety assessment. [0003] The traditional load identification generally uses the deconvolution method to measure the external unknown load of the structure, that is, in the case of knowing the parameter information of the structure in advance, using the measured structural response (displacement, velocity, acceleration and frequency response function, etc.), to identify Unknown input force that cannot be measured. [0004] However, the existing identification methods for external loads of structures, the basic assumption of constructing the load-response equation ...
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CPCG06F2111/10G06F30/23
Inventor 胡可贺文宇王佐才任伟新马祖桥程磊科丁亮侯宇航
Owner ANHUI TRANSPORTATION HLDG GRP CO LTD