Method and equipment for calculating section size of frame longitudinal beam of liquid tank semitrailer, and storage medium

Abstract

The embodiment of the invention provides a method and equipment for calculating the section size of a frame longitudinal beam of a liquid tank semitrailer, and a storage medium. The method comprises the steps of obtaining axle parameters and axle distance parameters of the semitrailer, and obtaining a single axle load based on the axle parameters and the axle distance parameters; based on the load of a single axle, obtaining a suspension airbag acting force calculation formula under different types of working conditions; obtaining an initial longitudinal beam section size; obtaining a first section maximum stress parameter and a second section maximum stress parameter based on the initial longitudinal beam section size and a suspension air bag acting force calculation formula; and under the conditions that the first section maximum stress parameter and the second section maximum stress parameter are both smaller than the material allowable stress parameter and the first difference value and the second difference value are both not larger than a preset threshold value, determining the initial longitudinal beam section size as the final frame longitudinal beam section size. According to the method of the embodiment of the invention, the sectional dimension of the longitudinal member of the frame can be calculated quickly, simply and conveniently, and meanwhile, the lightweight development of the frame is further promoted.

Description

technical field [0001] The invention relates to the field of frame design of a liquid tank semi-trailer, in particular to a calculation method, device and storage medium for the cross-sectional size of a longitudinal beam of a liquid tank semi-trailer frame. Background technique [0002] With the rapid development of the logistics and transportation industry, the efficient, economical and large-capacity tank semi-trailer transportation mode has gradually become the first choice for the logistics and transportation industries such as liquid food, chemicals, and refined oil. As the main load-bearing component, the semi-trailer frame bears various loads inside and outside the vehicle, and its reliability directly determines whether the semi-trailer can run normally and the safety of driving. The frame of the liquid tank semi-trailer is generally a welded frame structure. The main structure of the tank-bearing semi-trailer frame in the market is composed of two main load-bearing...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention proposes a calculation method for the cross-sectional size of the frame longitudinal beam of a liquid tank semi-trailer, which can quickly and easily calculate the cross-sectional size of the frame longitudinal beam, and solve the immature calculation method of the frame longitudinal beam in the design process of a liquid tank semi-trailer problems, and at the same time further promote the development of frame lightweight

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