Robot Virtual Assembly Based on Collision Detection in Java3D

2009 ◽  
pp. 270-277 ◽  
Author(s):  
Peihua Chen ◽  
Qixin Cao ◽  
Charles Lo ◽  
Zhen Zhang ◽  
Yang Yang
Keyword(s):  
Collision Detection ◽  
Virtual Assembly

Haptic Rendering: Practical Modeling and Collision Detection

1999 ◽  
Author(s):  
ZhuLiang Cai ◽  
John Dill ◽  
Shahram Payandeh
Keyword(s):  
Surgical Training ◽  
Collision Detection ◽  
Object Representation ◽  
Virtual Assembly ◽  
Detection Algorithm ◽  
Haptic Rendering ◽  
3D Object ◽  
Modeling Techniques ◽  
Simulation Results ◽  
Fast Collision

Abstract 3D collision detection and modeling techniques can be used in the development of haptic rendering schemes which can be used, for example, in surgical training, virtual assembly, or games. Based on a fast collision detection algorithm (RAPID) and 3D object representation, a practical haptic rendering system has been developed. A sub-system determines detailed collision information. Simulation results are presented to demonstrate the practicality of our results.

Collision Detection

2011 ◽  
pp. 36-67
Author(s):  
Gabriel Zachmann
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Collision Detection ◽  
Serious Games ◽  
Medical Training ◽  
Virtual Assembly ◽  
Virtual Objects ◽  
Enabling Technologies ◽  
Assembly Simulation ◽  
Physically Based

Collision detection is one of the enabling technologies in many areas, such as virtual assembly simulation, physically-based simulation, serious games, and virtual-reality based medical training. This chapter will provide a number of techniques and algorithms that provide efficient, real-time collision detection for virtual objects. They are applicable to various kinds of objects and are easy to implement.

The Use of the Voxmap Pointshell Method of Collision Detection in Virtual Assembly Methods Planning

2001 ◽  
Author(s):  
Tom C. Johnson ◽  
Judy M. Vance
Keyword(s):  
Collision Detection ◽  
Virtual Assembly ◽  
General Purpose ◽  
Assembly Planning ◽  
Design Evaluation ◽  
State University ◽  
Iowa State University ◽  
Ability To Work ◽  
3 Dimensional ◽  
Dimensional Interaction

Abstract Virtual reality (VR) provides the ability to work with digital models in an environment that provides 3 dimensional interaction. This technology can be used to evaluate how humans interact with products before costly physical prototypes are built. One of the advantages of using VR technology in design evaluation is the ability to easily explore many different “what-if” design scenarios. One of the areas of current research in the use of VR is in assembly methods planning. As a result of prior work performed at Iowa State University, it became clear that collision detection is an important component in the development of virtual assembly methods planning applications. This paper describes the use of the Voxmap Pointshell method of collision detection as it is applied to a general purpose virtual assembly planning application.

The Creation of Virtual Assembly System Based on Virtools

2014 ◽  
Vol 998-999 ◽  
pp. 486-490 ◽  
Author(s):  
Yan Cheng ◽  
Yun Peng Han
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
Virtual Assembly ◽  
Assembly System ◽  
Data Glove ◽  
Virtual Scene ◽  
The Creation ◽  
Key Techniques

Aiming to improve the assembly efficiency of machinery products, a Virtools-based virtual assembly system is presented. Firstly, the framework of the Virtools-based virtual assembly system is proposed. Then, how the virtual scene built is introduced. Based on VE (virtual environment), combined with the data glove, the dynamic and interactive assembly is designed via the Virtools platform. Finally, the key techniques of supporting virtual assembly system such as collision detection are also studied by using the Virtools.

A Collision Detection Algorithm in Virtual Assembly Technology

2015 ◽  
Vol 713-715 ◽  
pp. 411-414
Author(s):  
He Qun Qiang ◽  
Chun Hua Qian
Keyword(s):  
Collision Detection ◽  
Classical Problem ◽  
Virtual Assembly ◽  
Detection Algorithm ◽  
Research Field ◽  
Component Model ◽  
Detection Problem ◽  
Tree Algorithm ◽  
Assembly Technology ◽  
Shape Characteristics

The collision detection problem is a classical problem in computer graphics research field. It has become a hot topic in recent years with the development of virtual assembly technology. And accurate collision detection is crucial to improve the reliability and authenticity of virtual assembly. In this paper, we designed a collision detection algorithm with a pre-segment strategy based on OBB-Tree algorithm, took advantage of the shape characteristics of component model, used a smaller bounding box for operation. Experimental results showed that the efficiency of the algorithm is about 10% higher than that of traditional OBB-Tree algorithm.

Research of Virtual Assembly Simulation System

2014 ◽  
Vol 628 ◽  
pp. 421-425
Author(s):  
Li Bo Zhou ◽  
Fu Lin Xu ◽  
Zhi Xiong Shen
Keyword(s):  
Collision Detection ◽  
Three Dimensional ◽  
Virtual Assembly ◽  
Simulation System ◽  
Virtual Manufacturing ◽  
Graphical Simulation ◽  
Assembly Simulation ◽  
Manufacturing Assembly ◽  
Interference Checking ◽  
Visual Interface

Virtual assembly is one of the main contents of the virtual manufacturing; assembly process simulation is an important part to product virtual assembly. The establishment and optimization technology of three-dimensional assembly simulation scene have been studied to develop a virtual machine assembly simulation system, which achieve a virtual simulation of assembly and disassembly of the machine and the integration and improvement of existing collision detection library, design and implement a graphical simulation system collision detection module, which can real-time interference checking to machine parts motion. The system has good human-computer interaction and visual interface, versatility, can be applied to any organization's assembly simulation, and through examples of the validity of the system.

Collision Detection and Part Interaction Modeling to Facilitate Immersive Virtual Assembly Methods

2004 ◽  
Vol 4 (2) ◽  
pp. 83-90 ◽  
Author(s):  
Chang E. Kim ◽  
Judy M. Vance
Keyword(s):  
Virtual Environment ◽  
Collision Detection ◽  
Virtual Assembly ◽  
Physically Based Modeling ◽  
Proximity Detection ◽  
Projection Screen ◽  
Static Object ◽  
Physically Based ◽  
Interaction Modeling ◽  
Swept Volume

Realistic part interaction is an important component of an effective virtual assembly application. Both collision detection and part interaction modeling are needed to simulate part-to-part and hand-to-part interactions. This paper examines several polygonal-based collision detection packages and compares their usage for virtual assembly applications with the Voxmap PointShell (VPS) software developed by the Boeing Company. VPS is a software developer’s toolkit for real-time collision and proximity detection, swept-volume generation, dynamic animation, and 6 degree-of-freedom haptics which is based on volumetric collision detection and physically based modeling. VPS works by detecting interactions between two parts: a dynamic object moving in the virtual environment, and a static object defined as a collection of all other objects in the environment. The method was found to provide realistic collision detection and physically-based modeling interaction, with good performance at the expense of contact accuracy. Results from several performance tests on VPS are presented. This paper concludes by presenting how VPS has been implemented to handle multiple dynamic part collisions and two-handed assembly using the 5DT dataglove in a projection screen virtual environment.

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