Blocked analysis method for large-size machine tool structural member
A technology of large-scale structural parts and analysis methods, which is applied in special data processing applications, instruments, adaptive control, etc., and can solve problems such as difficult transportation, high quality, and environmental pollution
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[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. 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.
[0016] Step 1: Establish the joint surface stiffness model based on the three-dimensional fractal contact theory, and identify the normal stiffness and tangential stiffness of the high-strength bolt bolted joint surface;
[0017] Starting from the consideration of the stiffness of the joint surface on the dynamic performance of the large structural part (beam) of the ma...
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