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Method for determining connecting point of middle structure of vehicle frame

A technology for determining method and structural connection, applied in design optimization/simulation, geometric CAD, etc., to achieve the effect of vehicle weight reduction design

Active Publication Date: 2020-07-10
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, for the large rigid connection between the frame and the body, such as the connection between the middle of the frame and the body, how to determine the position of the connection point between the middle of the frame and the body has become a difficult problem. There are no reports related to this aspect in the open literature

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  • Method for determining connecting point of middle structure of vehicle frame

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Embodiment 1

[0039] This embodiment relates to a method for determining the connection point of the middle part of the vehicle frame, which is used to determine the position of the connection point on the middle part of the vehicle frame for connecting the vehicle frame and the vehicle body. which, combined with figure 1 As shown in , the middle frame structure of this embodiment specifically includes longitudinal beams 101 located on both sides, and also includes a battery pack 102 directly fixed between the longitudinal beams 101 on both sides. The battery pack 102 as a whole is composed of a bottom case and a cover plate buckled on the bottom case. Specifically, the longitudinal beams 101 on both sides connected to the bottom case can be connected with the bottom case by bolts, and a battery module and a battery are arranged in the bottom case. The management module and the cooling module, the battery module, the electric field management module and the cooling module can refer to the r...

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Abstract

The invention provides a method for determining a connecting point of a middle structure of a vechile frame which is used for determining the position of a frame body connecting point in the middle ofthe frame and comprises the steps of creating a three-dimensional model for the middle structure of the frame; importing the established three-dimensional model into finite element processing software to carry out finite element gridding processing and outputting a grid file; importing the grid file into simulation software, defining a simulation frequency interval, and simulating a frame modaldiagram under each order of frequency; and performing statistics on a frame middle modal value in each order of frame modal diagram, and taking the position with the maximum low modal coincidence degree in each region in different orders of modal diagrams as the position of a connection point. The connecting point position determined by the method can achieve large-rigidity connection between themiddle of the frame and a vehicle body, strength complementation of the frame and the vehicle body is achieved, the frame and the vehicle body can serve as a whole to bear force, and the weight reduction design of the whole vehicle can be achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle design and development, in particular to a method for determining connection points of a frame middle structure. Background technique [0002] In the prior art, automobile body structures are mainly divided into load-bearing body and non-load-bearing body. The load-bearing body does not have a chassis structure that independently bears external forces, but only uses the body to support various components, that is to say, the entire body is integrated, there is no independent girder design, the suspension is installed on the body through the sub-frame, and the load of the body is transmitted through the suspension device. Give the wheels. The load-bearing body structure is light in weight, high in vehicle stability, and has the advantages of low cost, light weight, low fuel consumption, and good comfort. However, the non-load-bearing structure also has poor body rigidity, especially poor rigidity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23
Inventor 穆峰孙喜冬张葆华甄林涛孙志伟许占高李子新马广
Owner GREAT WALL MOTOR CO LTD
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