Method for simulating object damaged process under impact force action

A process simulation and impact technology, applied in special data processing applications, image data processing, instruments, etc., can solve problems such as inability to meet real-time requirements and loss of fidelity, and achieve the effect of meeting real-time requirements and simple and efficient algorithms

Inactive Publication Date: 2007-01-03
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In general, whether it is a simple object or a complex object, the simulation model based on physics can get more realistic simulation results, but it cannot mee

Method used

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  • Method for simulating object damaged process under impact force action
  • Method for simulating object damaged process under impact force action
  • Method for simulating object damaged process under impact force action

Examples

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Embodiment Construction

[0030] Such as figure 1 Shown is the schematic flow chart of the whole process of the present invention. The user first defines the model of the object according to the specification, and the xml file of the definition model includes the components that make up the object and the constraint relationship between each component. After loading the model If the impact force is greater than the strength of the directly stressed component, first calculate the damage effect of the directly stressed component, and then find other components that have a constraint relationship with this component and calculate its constraint damage effect, thus simulating the damage effect of the object. The specific implementation The process is as follows:

[0031] (1) Perform geometric modeling on complex objects, that is, according to the requirements of structural mechanics, decompose complex objects into multiple structural components, and then establish constraint relationships for each componen...

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Abstract

A simulating method of the object damage process by the impulse force decomposes the execution of the complex object into the summation of the directing damage and the limiting damage of the every component. The process: (1) it builds the geometrical model for the complex object and decomposes it to many components according to the command of the structural mechanics and builds the limiting condition for the components to save the structure character of the object; (2) achieve the directing damage of the stress component of the complex object and define the cracking model then attach the crack in the surface of the component, last to generate the crack side and the shiver according to the stress and crack direction; (3) it finds the limiting components of the present component according to the definition restrain condition in the model building process, then it simulate the damage by the different damage arithmetic according to the difference of the component type. The invention can not only fit the command of the real-time character but achieve fidelity.

Description

technical field [0001] The invention relates to a real-time simulation method for the destruction process under the impact of external force. Background technique [0002] When studying the damage simulation of objects in the field of computer graphics, the calculation models often used are mainly physics-based calculation models and process-based calculation models. The physical calculation model is used to analyze the force of the object, and judge whether the stress exceeds the yield limit of the material at the location of stress concentration, so as to determine the position and direction of the fracture surface of the object. Physics-based simulation is widely used in the field of civil engineering and is often referred to as structural simulation. Structural simulation can be divided into component load deformation simulation and structural failure simulation. Structural failure simulation describes the failure process of structural collapse, structural damage, etc....

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T17/00
Inventor 何兵唐绍鹏
Owner BEIHANG UNIV
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