A connection method of acceleration sensor in cae collision model

Abstract

The present invention relates to the technical field of computer-aided engineering (CAE), in particular to a connection method of an acceleration sensor in a CAE collision model, at least comprising: establishing an acceleration sensor unit on a target assembly, establishing a sensor coordinate system, and setting the coordinates of the acceleration sensor unit Transform from the vehicle coordinate system to the sensor coordinate system, copy the acceleration sensor unit from the target assembly, and finally make the acceleration sensor unit and the target assembly relatively stationary and spaced apart. The invention makes the acceleration sensor unit and the target assembly relatively static and spaced apart, and can ensure that the position change of the projection node in the projection area is less than the contact distance without re-connecting the acceleration sensor unit and the target assembly, and solves the problem of the acceleration sensor. When the connected target assembly changes, the connection relationship between the acceleration sensor and the target assembly needs to be re-established, which improves work efficiency and saves time and labor costs.

Description

technical field [0001] The invention relates to the technical field of computer-aided engineering (CAE), in particular to a connection method of an acceleration sensor in a CAE collision model. Background technique [0002] In recent years, the actual vehicle test of vehicle crash safety has been an authoritative means to assess the passive safety of vehicles. Under the guidance of the guidance system, the vehicle crashes into the fixed wall. The entire collision process is recorded by high-speed camera equipment for slow playback to achieve reproduction, and the electrical measurement system sorts out the data collected by the sensors arranged in the vehicle, and compares the sorted results with the standard data to evaluate the tested vehicle collision performance. In practice, the collision physical test cycle is long, the cost is high, and there are limitations in data collection. With the development of numerical simulation technology, it has become an important meth...

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Problems solved by technology

[0004] The invention solves the technical problem that the connection relationship between the acceleration sensor and the collision model assembly needs to be re-established when the collision model assembly connected to the acceleration sensor is changed in the existing connection method of the acceleration sensor

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