Method for calculating opening and closing force of automobile tail door gas spring

Abstract

The invention discloses a method for calculating opening and closing force of an automobile tail door gas spring. The method comprises the following steps: a gas spring support model in CATIA is established; after the gas spring supporting model is established, mechanical balance parameters are established; the coordinates of the mounting points of a tail door on a vehicle body and the coordinatesof the mounting points of the gas spring on the tail door and the vehicle body are accurately obtained according to the mechanical balance parameters; and finally, importing of the coordinates of themounting points of the tail door on the vehicle body and the coordinates of the mounting points of the gas spring on the tail door and the vehicle body into an Excel calculation program is carried out, and the influence of the air temperature on the parameters of the gas spring is defined. Opening force and closing force at different temperatures and different door opening angles are calculated respectively, and a relation curve of the opening force and the door opening angles and a relation curve of the closing force and the door opening angles are obtained. The method reasonably and effectively solves the difficult problem of tail door gas spring arrangement, saves the arrangement time, and improves the design accuracy and scientificity.

Description

technical field [0001] The invention relates to the technical field of automobile detection, in particular to a method for calculating the opening and closing force of an automobile tailgate gas spring. Background technique [0002] As people's requirements for the performance of automobiles and the smooth, beautiful and dynamic body shape are increasing day by day, modern body technology is also developing rapidly. For this reason, the opening mechanism of the tailgate must not only meet the needs of the overall shape of the car body, but also take into account safety, convenience, and reliability. Gas springs can well meet these requirements; The method of reverse design or actual vehicle matching is inaccurate in layout, lagging in research and development, and difficult to guarantee product quality. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a calculation method for the opening and ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a calculation method for the opening and closing force of the gas spring of the tailgate of the automobile, and solve the problem of using the two-circle method and reverse design when the gas spring of the tailgate of the automobile is arranged in the prior art. Or the method of matching the actual vehicle, resulting in inaccurate layout and difficulty in guaranteeing product quality

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