Method for analyzing crashworthiness of composite material reinforced whole vehicle main transmission path force-bearing component

A technology of composite materials and analysis methods, which is applied in the field of crashworthiness analysis of load-bearing components of the main transmission path of composite materials to enhance the vehicle, and achieves the effect of significant effect, controllable cost, and guarantee of resistance to deformation.

Pending Publication Date: 2021-11-26
JIANGLING MOTORS
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Problems solved by technology

However, the light weight of the car body brings safety and crashworthiness issues. When the car is hit, the ability of the main load-bearing parts of the car body to resist deformation determines whether there is enough living space in the passenger compartment.

Method used

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  • Method for analyzing crashworthiness of composite material reinforced whole vehicle main transmission path force-bearing component
  • Method for analyzing crashworthiness of composite material reinforced whole vehicle main transmission path force-bearing component
  • Method for analyzing crashworthiness of composite material reinforced whole vehicle main transmission path force-bearing component

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specific Embodiment

[0057] Specific example, the actual design case of recovering the original roof compressive strength of the whole vehicle by adding composite material reinforcement components at its weak position after the B-pillar of a certain model is lightweight: Crashworthiness analysis, the curve of loading force and displacement is as follows figure 2 Shown in curve 1.

[0058] (2) Obtain the analysis results of step 3, figure 2 Curve 1 in the curve 1 judges whether the result meets the design target. The design target generally refers to a certain amount exceeding the requirements of the regulations. The design regulations of the present invention are "GB26134 Passenger Car Roof Compressive Strength", and the required scope of the regulations is: The loaded load is 3.0 times the curb weight of the vehicle, and the movement of the lower surface of the loading device should not be greater than 127 mm. Taking the curb weight of a vehicle as an example of 1.6T, the design target of the...

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Abstract

The invention relates to a method for analyzing the crashworthiness of a composite material reinforced whole vehicle main transmission path force bearing component. The method comprises the following steps: carrying out a collision test on a basic state body-in-white; collecting basic state body-in-white collision data; carrying out structural lightweight design on the vehicle body and carrying out a vehicle body collision test; determining a vehicle body weak part according to the collision data, adding a composite material reinforcing component at the vehicle body weak part, and adjusting the structural design of a lap joint area; carrying out a vehicle body collision test; ensuring that the vehicle body collision data meet the design target, and the vehicle body lightweight design target is completed. According to the method for analyzing crashworthiness of composite material reinforced whole vehicle main transmission path force-bearing componentl, material lightweight design and structure lightweight design are comprehensively considered, and automobile body lightweight is achieved on the premise that the cost is controllable and an existing manufacturing process is not affected.

Description

technical field [0001] The invention relates to a method for analyzing the crashworthiness of an automobile, in particular to a method for analyzing the crashworthiness of a load-bearing component of a main transmission path of a composite material reinforced vehicle. Background technique [0002] Lightweight automobile body structure has been a hot topic in the industry in recent years. Concepts such as "all-aluminum body", "replacing steel with plastic", carbon fiber composite materials, and glass fiber reinforced materials have emerged in an endless stream. Although the products derived from these advanced lightweight concepts have the advantages of light weight and corrosion resistance, they have problems such as complicated manufacturing process, high cost, and difficult recycling of thermosetting materials, which limit their wide-scale application. At present, the most widely used glass fiber reinforced composite materials are also mostly deployed in the parts of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23G06F113/26G06F119/14
CPCG06F30/15G06F30/23G06F2113/26G06F2119/14
Inventor 徐莉邬杰徐鸣涛陈冬民袁杰
Owner JIANGLING MOTORS
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