Method of generating two-wheeled vehicle dummy model and apparatus for performing a collision simulation of a two-wheeled vehicle
AssigneeHonda Motor Co., Ltd.
InventorsHideo Namiki, Toyokazu Nakamura
Life of this patent
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Abstract
A method of and an apparatus for performing a collision simulation on a two-wheeled vehicle using a virtual model of a dummy developed for use on four-wheeled vehicles.
Claims9
A method of performing a collision simulation of a two-wheeled vehicle in a virtual three-dimensional space constructed on a computer using a virtual model of a dummy for a four wheeled vehicle comprising the steps of:
- generating a dummy model for two-wheeled vehicles by combining a dummy model simulating a dummy with shell elements covering openings thereof;
- setting various test conditions including a contact condition for an FEM model of the dummy model for two-wheeled vehicles;
- and
- performing a collision simulation on said FEM model.
A collision simulation apparatus for performing a collision simulation of a two-wheeled vehicle dummy model in a virtual three-dimensional space constructed on a computer using a virtual model of a four-wheeled vehicle dummy comprising:
- memory means for storing a dummy model simulating a dummy;
- means for generating shell elements covering openings of the dummy;
- means for generating a dummy model for two-wheeled vehicles by combining the openings of the dummy with said shell elements;
- means for setting various test conditions including a contact condition for an FEM model of the dummy model for two-wheeled vehicles;
- and
- means for performing a collision simulation on said FEM model.
A method of generating a two-wheeled vehicle dummy model as a two-wheeled vehicle FEM model based on an FEM model of a four-wheeled vehicle dummy comprising the steps of:
- extracting regions of mutual interference caused when the FEM model of the four-wheeled vehicle dummy takes a riding posture on a two-wheeled vehicle;
- and
- producing a contact definition with respect to elements which cause mutual contact while a simulation is being performed wherein no contact definition is produced with respect to elements of said regions of mutual interference.
A method of generating a two-wheeled vehicle dummy model as a two-wheeled vehicle FEM model based on an FEM model of a four-wheeled vehicle dummy comprising the steps of:
- extracting regions of mutual interference caused when the FEM model of the four-wheeled vehicle dummy takes a riding posture on a two-wheeled vehicle;
- and
- correcting elements of the regions of mutual interference so as to avoid said interference.
A collision simulation apparatus for performing a collision simulation of a two-wheeled vehicle dummy model in a virtual three-dimensional space constructed on a computer using a FEM model of a four-wheeled vehicle dummy comprising:
- memory means for storing a dummy model simulating a dummy;
- means for extracting regions of mutual interference caused when the FEM model of the four-wheeled vehicle dummy takes a riding posture on a two-wheeled vehicle;
- means producing a contact definition with respect to elements which cause mutual contact while a simulation is being performed wherein no contact definition is produced with respect to elements of the regions of mutual interference;
- and
- means for performing a collision simulation on said FEM model.
A method of performing a collision simulation of a two-wheeled vehicle in a virtual three-dimensional space constructed on a computer using a FEM model of a four wheeled vehicle dummy comprising the steps of:
- generating a dummy model for two-wheeled vehicles by combining a dummy model simulating a dummy with shell elements covering openings thereof;
- extracting regions of mutual interference caused when the FEM model of the four-wheeled vehicle dummy takes a riding posture on a two-wheeled vehicle;
- producing a contact definition with respect to elements which cause mutual contact while a simulation is being performed wherein no contact definition is produced with respect to elements of said regions of mutual interference;
- setting various test conditions including a contact condition for the FEM model of the dummy model for two-wheeled vehicles;
- and
- performing a collision simulation on said FEM model.
Dependencies are inferred from the claim text.