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Hybrid modeling method of virtual flexible cable

A flexible cable and hybrid modeling technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of poor overall efficiency of cable layout and installation, and achieve the effect of improving authenticity

Active Publication Date: 2015-12-16
BEIHANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cable layout installation is carried out on the physical prototype, which needs to be gradually improved through repeated trial installations, resulting in poor overall efficiency of the cable layout installation

Method used

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  • Hybrid modeling method of virtual flexible cable
  • Hybrid modeling method of virtual flexible cable
  • Hybrid modeling method of virtual flexible cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0132] In actual situations, in the wiring planning of the equipment containing flexible cables, there are many cable bundle structures, and the cable is divided into two sections where the cable is clamped or fixed, and one section is far away from the electrical connector or equipment. For other parts of the equipment, one section is immediately followed by electrical connectors or other parts of the equipment, such as Figure 5 shown. The sub-cable section far away from electrical connectors or other components has higher requirements on the static posture of the cable. The following for Figure 5 The cable routing shown is mainly to demonstrate the flex cable bending and sagging under the force of gravity.

[0133] bending deformation

[0134] The demonstration of the bending deformation of the flexible cable is mainly by simulating the spring-off process of the ring of a flexible cable after being cut. The specific process is as follows: Figure 6 As shown in , the pr...

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Abstract

The invention provides a hybrid modeling method of a virtual flexible cable, and belongs to the technical field of flexible object modeling. The cable is divided into N sections, sub-cables which require high static attitude fidelity are modeled by an energy optimization method, the sub-cables which require high dynamic real-time attitude fidelity are modeled by a mass spring method, a constraint that two sub-cable segments connected on a connection point pass the same fixed point, and a constraint that the two connected sub-cable segments on the connection point have the consistent tangent direction are set, and finally, a hybrid model of the flexible cable is determined. The cable constraints including an endpoint constraint and a hoop constraintare processed according to practical situations. By means of the hybrid modeling method, the instantaneity requirement of virtual environment on a cable moving posture can be met, the physical properties of the cable can be considered as much as possible in a cable model, the authenticity of the flexible cable model is improved and a support for subsequent virtual cable layout, assembling, final assembly troubleshooting and maintenance simulation is provided.

Description

technical field [0001] The invention belongs to the technical field of flexible object modeling, in particular to a hybrid modeling method of flexible cables in a virtual environment. Background technique [0002] Flexible cables are very important components in electromechanical products. The rational layout and reliable installation of cables will directly affect the quality and performance of electromechanical products. The traditional cable layout installation is carried out on the physical prototype, which needs to be gradually improved through repeated trial installations, which leads to poor overall efficiency of the cable layout installation. [0003] The emergence of virtual reality technology provides a new method for flexible cable modeling and simulation in virtual environment, which makes the modeling and simulation of flexible cables more and more concerned. At present, the research on cable modeling has achieved certain results. In 2000, Hergenrother et al. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 周栋涂美霞徐奕柳贺文兴郭志奇李硕吕川
Owner BEIHANG UNIV
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