A method for designing a frame of an electric formula car

Abstract

The invention particularly relates to a method for designing a frame of an electric formula car, comprising the following steps of: constructing a man-machine test bed at the initial stage of design,obtaining man-machine parameters, and determining the parameters of a whole car according to the total arrangement of the whole car; Calculating a suspension hard point position through suspension kinematics and dynamics simulation, and estimating a vehicle frame hard point position; Building a frame initial model by using the frame parameters and the hard point positions; Optimizing the frame model and carrying out finite element torsional rigidity analysis to obtain an ideal frame model; Performing working condition analysis on the determined frame model, and verifying the structural strength and the safety performance under different working conditions; Performing constraint modal analysis on the model after working condition analysis, obtaining modal parameters of the frame, verifyingwhether a resonance phenomenon occurs, and optimizing the model according to an analysis result to obtain a final frame model; And designing a frame welding clamp to complete object welding. The design cycle of the frame is greatly shortened, the design reasonability is improved, and the designed frame can better meet the performance of the whole vehicle.

Description

technical field [0001] The invention belongs to the technical field of structural design and computer-aided engineering, and in particular relates to a design method for a frame of an electric formula racing car. Background technique [0002] The Chinese Formula Electric Car Competition started in 2013, and it is the expansion and supplement of the Chinese Formula Car Competition. According to the technical rules issued by the organizing committee of the competition, a single racing kart was designed, manufactured and trained within one year. Its biggest feature is that the design and manufacture of the car must comply with the technical rules, including the main structure of the frame. , battery box design, module power, motor power and other important parameters to ensure the safety of the car and the fairness of the event. [0003] As the largest structural component independently designed and manufactured by the electric formula racing car, the frame of the formula car ...

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Problems solved by technology

[0004] In view of the above-mentioned problems, the present invention proposes a design method for the frame of the electric formula racing car to solve the problem that the frame design of the electric formula racing car is not standardized and unreasonable

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