A Design Method of Crane Ring Beam

Abstract

The invention discloses a design method for a crane ring beam, and belongs to the field of mechanical part design. The design method includes the steps that an initial geometric model of the ring beam is constructed; discrete processing is performed on the initial geometric model to obtain a discrete; on the basis of the discrete, the loading condition, the boundary constraint condition and the material attribute are set; in combination with the loading condition, the boundary constraint condition and the material attribute, calculation is performed with the finite element method to obtain a finite element simulation model; the finite element simulation model is optimized with the topological optimization method to obtain an optimization result model; a stress value interval is set on the optimization result model, the number N of isostress contours is set, N stress values are selected in the stress value interval in an equidifferent mode, all stress points with the stress values are selected on the ring beam, and the stress points with the equal stress values are connected to obtain the isostress contours; according to the isostress contours, strength property check is performed on the optimization result model to obtain the ring beam. By means of the method, the optimization design cycle of the ring beam is shortened.

Description

technical field [0001] The invention belongs to the field of mechanical component design, in particular to a design method of a crane ring beam. Background technique [0002] The ring beam is an important supporting part of the crane, which plays the role of carrying the lifting platform. In the process of designing a crane, the weight reduction design for the ring beam is a very important part. [0003] The common design method now is to first obtain the initial geometric model of the ring beam according to the empirical analog configuration, and then obtain the finite element simulation model of the ring beam through the finite element method, and then repeat the structure of the ring beam on the basis of the finite element simulation model. optimization, and finally get the ring beam that meets the requirements. [0004] However, when using this method to design ring beams, the design of the initial geometric model plays a vital role, and the optimization process of the...

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Problems solved by technology

[0005] In order to solve the problem of long optimization period of the existing design method, the embodiment of the present invention provides a design method of the ring beam of the crane

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