White car body horizontal-longitudinal beam anti-bending structure and arrangement method

Abstract

The invention provides a white car body horizontal-longitudinal beam anti-bending structure and an arrangement method, wherein one edge of a front floor installation horizontal beam is connected to a front floor rear-sectional longitudinal beam by a first connecting component, the other edge of the front floor installation horizontal beam is connected to a rear floor, the front floor installation horizontal beam is perpendicular to the horizontal rear floor, the front floor installation horizontal beam and the front end of the rear floor from a sealing structure with a varied cross section, and a sealing area formed by the front floor installation horizontal beam and a middle cross section of the rear floor is longer and narrower than a sealing area formed by the front floor installation horizontal beam and a cross section on the left side of the rear floor. The sealed cross sections are formed in a front floor middle-sectional longitudinal beam, between the front floor installation horizontal beam and the rear floor, and on bottoms of a longitudinal beam on the left side of a water tank support and a longitudinal beam on the right side of the water tank support, so anti-bending performance of a while car body is enhanced. Reinforcing beams and reinforcing plates are disposed on a water tank support assembly and overall weight is reduced by 20%, so bending frequency of the water tank support assembly is increased by 1 Hz-2 Hz.

Description

technical field [0001] The invention relates to the technical field of automobile body structures, in particular to a bending-resistant structure and arrangement of transverse and longitudinal beams of a body-in-white. Background technique [0002] The key component on the force transmission path of the automobile body is the main structure of the vehicle body, which is responsible for the force bearing and energy absorption during the vehicle collision process, and is the main determinant of whether the collision vehicle can obtain a high-star safety evaluation. The rationality, utility, and process realization of the design are the main factors affecting the collision result. The structural design on the force transmission path is not accomplished overnight, and requires repeated attempts, improvements, optimizations, and verifications to achieve the best design effect. [0003] In the traditional automobile body-in-white structure, the overall mass distribution of the bo...

AI Technical Summary

Problems solved by technology

[0003] In the traditional car body-in-white structure, the overall mass distribution of the body is unreasonable, resulting in poor bending resistance

The connection between the longitudinal beam of the rear section of the front floor and the installation beam of the front floor, the connection of the installation beam of the front floor and the rear floor, and the connection of the installation longitudinal beam of the rear floor and the installation beam of the rear floor, the installation structure is simple, and the bearing capacity and bending resistance are poor

The water tank bracket assembly is heavy in weight and the thickness of the upper and lower beams is relatively large. Although it has good load-bearing performance, the mass of the excitation end of the body-in-white is heavy, which will arouse the overall bending mode, and the bending resistance is also weak

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