A design method for a high-rigidity square-section beam of a frame
A design method and technology of cross-section beams, which are applied in the design of high-rigidity square-section beams for frames, and the design of beams for frames, can solve the problems that it is difficult to combine light weight and high rigidity of beams, and achieve light weight and material utilization. High rate and good stability
Active Publication Date: 2019-05-28
WUHAN UNIV OF TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects and problems existing in the prior art that it is difficult to combine the light weight and high rigidity of the beam, and to provide a design of a square section beam with high rigidity for the frame that can combine the light weight and high rigidity of the beam method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0050] see figure 1 , figure 1 It is a schematic diagram of the section parameters of a square section beam, and the design parameters required for its composition include: a indicates the width of the square section, t1 indicates the bottom thickness of the square section, the thickness of the upper and lower bottom of the square section is the same, t2 indicates the side thickness of the square section, H represents the inner height of the square section.
[0051] In present embodiment 1, the numerical ranges of t1 and t2 are all 3, 3.5, 4, 4.5, 5, 5.5, 6 (in mm) for light truck models, and the numerical ranges of A are 1000, 1100, 1200, 1300, 1400, 1500 (unit is mm 2 ).
[0052] The first step, the acquisition process of the parameter association table: first according to the following formula
[0053]
[0054] Through MATLAB simulation, to obtain the change trend atlas of It with A, t1, t2, the change trend atlas is divided into A=1000 sub-atlas, A=1100 sub-atlas, A...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a design method for a high-rigidity square-section beam of a frame. The method takes a square section beam with a bamboo-like structure as a design target, and is characterizedby firstly obtaining the optimal section width corresponding to the maximum value of the torsional coefficient It of the square section under different area, different bottom thicknesse and the sidethickness condition, and then drawing an optimal section width curve graph set, wherein the graph set is divided into a plurality of width curve graphs by taking a numerical value of the bottom thickness t1 as a standard; calculating the slope of each width curve in the width curve graph, averaging the slopes of all the width curves in each width curve graph to obtain an average slope Kt1 corresponding to the width curve graph to thereby obtain the association table between Kt1 and t1, and designing a subsequent square section beam according to the association table, so as to obtain each parameter required by the section of the square section beam with high rigidity. According to the design, the frame beam with light weight and high rigidity can be designed, and the design time is very short and very fast.
Description
technical field [0001] The invention relates to a design method of a beam for a vehicle frame, which belongs to the field of lightweight optimization design of automobiles, in particular to a design method of a high-rigidity square-section beam for a vehicle frame. Background technique [0002] With the rapid development of the automobile industry, automobile lightweight has become a healthy and sustainable development mode pursued by the automobile industry. Automobile lightweight plays a vital role in reducing fuel consumption and reducing emissions. research hotspots. The frame, as the matrix of the vehicle supporting and connecting various parts, is an important object of automobile lightweight research. Under actual use conditions, the frame beam will deform to varying degrees under the action of its own weight and load. Therefore, when designing the lightweight design of the frame beam, it is necessary to make the beam have sufficient strength and rigidity. The usual ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F17/50B62D21/00
Inventor宋燕利徐勤超唐睿杰华林
OwnerWUHAN UNIV OF TECH