Method and system for predicting the service performance of a large complex structure containing cementing
A complex structure and predictive model technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of leakage risk, prolong design development and market time, and achieve the effect of shortening calculation time
Pending Publication Date: 2019-06-21
孙凌玉
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Not only prolonging design development and time-to-market, but also risking leaks
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The purpose of the present invention is to provide a method and system for predicting the service performance of large and complex structures with glued joints, which can greatly shorten the calculation time and quickly predict the safety status of the interface under static, impact, fatigue and environmental loads.
[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention wil...
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The invention discloses a method and a system for predicting the service performance of a large complex structure containing cementing. The method comprises the following steps: acquiring material types and trademarks of two adherents and an adhesive; obtaining the elastic modulus of the two adherents and the adhesive according to the information; acquiring thickness information of the two adheredobjects and the adhesive layer; constructing a meta-model of the bonding area; Establishing a large complex structure model which does not contain a detailed glue layer according to the gluing area element model; correcting the model obtained in the previous step by using experimental data to obtain a large complex structure performance accurate prediction model; training the accurate predictionmodel to obtain a trained large complex structure performance rapid prediction model; inputting parameters and load conditions of the cementing area into the trained large complex structure performance prediction model to obtain a detailed prediction result of the large complex structure. According to the method, the calculation time can be greatly shortened, and the state of whether the interfaceis safe or not under static, impact, fatigue and damp-heat environment loads can be quickly predicted.
Description
technical field [0001] The invention relates to the field of bonding, in particular to a method and system for predicting the service performance of large complex structures containing bonding. Background technique [0002] Due to the need for energy saving and environmental protection, automobiles, aircraft, rail transit and other types of mechanical equipment must be lightweight. According to the lightweight design concept of "use the right material in the right place", various materials will be used in the same large structure at the same time and need to be connected to each other, which leads to the emergence of the connection problem of dissimilar materials. Glue bonding is currently the only method suitable for joining all materials. [0003] In different stages of product development, in addition to the experimental testing methods of physical models, the numerical simulation technology combined with CAD / CAE is more widely used. For example: in the design of the ad...
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IPC IPC(8): G06F17/50
Inventor 孙凌玉
Owner 孙凌玉