Parameter recognition method of automobile collision wave form features

Abstract

The invention discloses a parameter recognition method of automobile collision wave form features, which relates to the technical field of automobile collision safety. The method comprises the following steps of: collecting automobile body accelerating speed information data from a system for collecting automobile collision test data and obtaining an accelerating speed A (t); and recognizing wavepeak points and wave hollow points in the accelerating speed A (t). According to the wave features of the collision accelerating speed wave form, the invention provides a method for recognizing wave peaks and wave hollows in a collision accelerating wave form, which is a technical means for analyzing wave form features in the collision process. An analysis method is accordingly provided for the optimization design of the automobile body structure. The application value lies in that the collision process is refined and decomposed into a plurality of data arrays consisting of wave peaks and wave hollows, and corresponding time and accelerating speed parameters are calculated. The method is established on the basis of a fixed calculation procedure and has engineering repeatability and feasibility for being realized on a computer. The work efficiency is increased, and the labour intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile collision safety, in particular to a collision data processing technology, in particular to a data processing method for finding peak and valley points in a collision process by identifying collision acceleration waveforms. Background technique [0002] In automobile collision safety technology, vehicle body acceleration is a series of data formed after the data acquisition system of automobile collision test collects and records the collision process through the acceleration sensor installed on the vehicle body. It is an important data in the design of automobile safety structure. Crash safety research has guiding significance. Through the analysis of the crash acceleration waveform, the problems existing in the crash safety in the design process can be found, and combined with the crash theory to make a judgment on the improved design of the automobile product design, which becomes the basis ...

AI Technical Summary

Problems solved by technology

The above processing method is only a general description of the collision process. Since the kinetic energy generated during the collision is converted into the deformation energy of the vehicle body structure during the collision process, the analysis of the acceleration waveform of the vehicle body is often performed subjectively by technicians based on actual engineering experience. Judgment, and this kind of judgment often has a lot of randomness, does not have engineering repeatability, and cannot well meet the needs of practical applications.

Images