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Ethod for determining automobile frame connection point of modular structure, non-bearing type automobile frame and automobile

A car frame and a technology for determining the method, which is applied to the connection between the body and the frame, the substructure, and vehicle components, etc., to achieve the effect of reducing the weight of the entire vehicle

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

AI Technical Summary

Problems solved by technology

However, for the high rigidity connection between the frame and the body, how to determine the position of the connection point on

Method used

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  • Ethod for determining automobile frame connection point of modular structure, non-bearing type automobile frame and automobile

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Embodiment one

[0042] This embodiment relates to a method for determining a connection point of a modular automobile frame, which is used to determine the position of the connection point on the frame of the automobile for connection between the frame and the vehicle body. Wherein, the vehicle frame of this embodiment is a modular structure, and the position of the connection points on the vehicle frame for the connection of the vehicle frame and the vehicle body is also several scattered in different areas of the vehicle frame, so that it can be used in multiple different The positional connection realizes the stable and reliable connection between the frame and the body, and then forms a complete body structure.

[0043] And for the vehicle frame whose main structure is plate-shaped, an exemplary structure is as follows: figure 1 As shown in , at this time, the vehicle frame specifically includes the main longitudinal beam 1, the auxiliary longitudinal beam 2, the ...

Example Embodiment

[0073] Embodiment two

[0074] This embodiment relates to a non-load-bearing automobile frame, which is a modular structure, and its structure can be referred to the description in Embodiment 1, and several connecting pieces for connecting with the vehicle body are installed on the frame , and each connector is located on the frame at the connection point between the frame and the vehicle body determined by the determination method of Embodiment 1. At the same time, the above-mentioned connectors are elastic connectors or rigid connectors, and are selected as elastic connections When using a piece, the elastic connecting piece can preferably be suspended.

[0075] This embodiment also relates to a non-load-bearing vehicle, on which the above-mentioned non-load-bearing vehicle frame is arranged.

[0076] The non-load-bearing automobile frame of the present embodiment and the automobile can realize the high rigidity connection between the vehicle frame and the vehicle body by a...

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Abstract

The invention provides a method for determining an automobile frame connection point of a modular structure, which is used for determining the position of a frame body connection point on an automobile frame of the modular structure and comprises the following steps of: establishing a frame structure three-dimensional model; 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 simulatinga frame modal diagram under each order of frequency; and counting the frame 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 the connection point. The invention further provides the non-bearing type automobile frame and the automobile with the connecting points determined through the method. The connection point position determined by the method can realize large-rigidity connection between the frame and the automobile body, and the frame and the automobile body can be used as a whole for bearing stress, so that the weight reduction design of the whole automobile is favorably realized.

Description

technical field [0001] The invention relates to the technical field of vehicle design and development, in particular to a method for determining a connection point of a modular vehicle frame. The present invention also relates to a non-load-bearing vehicle frame with the position of the connection point determined by the determination method, and a non-load-bearing vehicle with the frame. 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 ve...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/23B62D21/02B62D24/02B62D24/00
CPCB62D21/02B62D24/02B62D24/00
Inventor 甄林涛张葆华刘颖马兰云田磊孙朝倩冯振杨帆
Owner GREAT WALL MOTOR CO LTD
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