Long fiber composite passenger car rear seat frame initial material design method
A rear seat and composite material technology, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as increasing costs
Inactive Publication Date: 2018-08-17
JILIN UNIV
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Problems solved by technology
However, due to the lack of simulation technology and design methods, it is often necessary to blindly carry out a large number of trial production and test tests in the early stage of seat design, which increases the cost of development
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[0114] Next, the present invention introduces the process of using the initial material design method of the long-fiber composite material passenger car rear seat frame proposed by the present invention with reference to an example.
[0115] 1. Determine the crashworthiness requirements of passenger car rear seats
[0116] GB15083-2006 "Test Method for Luggage Displacement Passenger Protection Device" for the certification of the impact strength of the rear seat of the automobile stipulates that the impact test of the seat shall be carried out on a trolley test bench. The size of the test sample block is 300mm×300mm×300mm, the edge chamfer is 20mm, and the mass is 18kg. The location of the test sample block is as follows: figure 2 It is placed on the floor of the luggage compartment, with a horizontal distance of 200mm from the frame in the longitudinal direction; there is a lateral distance of 50mm between the two test samples. The deceleration curve imposed by the trolley ...
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The invention, within the field of research of composite materials for automobiles, relates to a long fiber composite passenger car rear seat frame initial material design method. The method comprisesthe following steps: 1. determine the crashworthiness requirements of the rear seats of passenger cars; 2. derivating the minimum penetration energy function of the LFT plate; 3. studying the designmethod of LFT flat material based on impact energy requirements; 4. Designing the initial material of the seat backboard skeleton; 5. verifying the initial design results finite element and test; themethod establishes a bridge connecting the energy absorption capacity with the material parameters and the test constraint parameters by using the minimum penetration energy of the LFT plate. On the one hand, the ultimate impact energy of the LFT plate is estimated, and on the other hand, the initial design and selection of the LFT material is guided; the practical application of the engineering of the present invention assumes that under the determination of the impact condition, the approximate range of the impact energy required to be absorbed by the LFT plate is set from the angle of the safety factor. The fiber volume fraction of the LFT material and the corresponding plate thickness are calculated to realize the initial design of the material.
Description
technical field [0001] The invention relates to a design method for the initial material of the rear seat frame of a passenger car, which belongs to the research field of composite materials for automobiles, and more specifically, the invention relates to a long-fiber composite material for the initial material of the rear seat frame of a passenger car. design method. Background technique [0002] The seat is a relatively independent body part in the automobile body structure, and there are corresponding regulations to put forward requirements on its rigidity and strength. Among them, for the rear seats of passenger cars, it is necessary to conduct an impact test of the luggage compartment block to investigate its impact resistance, so as to ensure that the seats will not cause damage to the rear occupants during a frontal collision. [0003] In order to meet the performance requirements of the traditional metal seat structure, the most common measure is to increase the thi...
Claims
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Login to View More IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 张君媛李仲玉张秋实姜哲纪梦雪郭强王丹琦周浩陆炳全
Owner JILIN UNIV