Pre-development check method for occupant protection during side impact of door inner guard plate

Abstract

The invention discloses a pre-development check method for occupant protection during side impact of door inner guard plate. The method includes the steps that a designer confirms the state of to-be-checked modeling data and confirms the accuracy of related environmental data; the designer, based on the seat stroke determined by selected seat module, determines the desired H point of the seat location corresponding to a percentile driver; the geometrical correspondence between the H point of the seat position corresponding to the driver and the projection of the door guard plate is automatically determined, and if the geometric correspondence does not meet predetermined criteria, the position of the specific H point is adjusted by a certain step until the predetermined criteria are met; anadjustment angle of a seat backrest and the geometry of the door guard plate are integrated, and a cross-section is made based on the corresponding percentile driver H point or the adjusted positionof the specific H point by the certain step; the relevant section is finished, and the distance between key parts and the molding surface of the door guard plate is measured and compared with the experience value; if the requirements are not met, suggestions are given numerically in the section.

Description

technical field [0001] The invention relates to the field of vehicle development and design, in particular to a pre-development check method for occupant protection during side collision of a door inner guard plate. Background technique [0002] In the early stage of vehicle development, it is necessary to conduct a basic evaluation of the front and rear door guard panel styling schemes for feedback, so as to avoid project delays caused by major changes in the later stages of the project. Specifically, in the pre-concept development stage of a car, it is usually necessary to build a data model to simulate and calculate its side impact safety. Existing methods are mostly based on modifying the structural data of existing models and building calculation models to estimate new models. However, due to The large and frequent changes in the previous modeling, if corresponding to each modeling change, it is very time-consuming and labor-intensive to create structural data and simul...

AI Technical Summary

Problems solved by technology

Specifically, in the pre-concept development stage of a car, it is usually necessary to build a data model to simulate and calculate its side impact safety. Existing methods are mostly based on modifying the structural data of existing models and building calculation models to estimate new models. However, due to The large and frequent changes in the previous modeling, if corresponding to each modeling change, it is very time-consuming and labor-intensive to create structural data and simulate and calculate its safety

Moreover, this method needs to be simplified on the basis of many vehicle parameters. In the process of simplification, there are inevitably errors and limited and inherent structural data forms, which cannot reflect the modeling intention of the existing door guard. At the same time, due to the need for rich model construction Experience and time-consuming, unable to meet the speed of modeling changes

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