Collision Detection Analysis of 2D Layout Based on Convex Hull Plus Rubber Band Simulation

2014 ◽  
Vol 488-489 ◽  
pp. 1480-1484
Author(s):  
Juan Lu ◽  
Jia Xun Wei ◽  
Wei Xia ◽  
Jun Yan Ma ◽  
Li Ying ◽  
...  

It is an innovative design method in physics that product layout design is abstracted into convex hull plus rubber band simulation layout mode by setting up the optimized model. Based on the physics model of Newtons Second Law, this paper analyzed collision detection methods during the process of realizing reasonable layout, and it is founded that real-time collision detection and collision response during movement, produced components within the given beat, appeared to be the key content of resolving digital model design. In this paper, Area Difference method was adopted to detect when the collision occurred during component movement and what kind of state the component tended to be in collision. At the same time, it also determined the interference degree, solved critical point pose for collision response as well as its generation time and related torque and force, which can confirm the components continued movement model of rotation and sliding. Meanwhile, it employed the Judgment Matrix method to analyze collision response so as to confirm the collision interference relationship and collision action state, movement possessing mode (rotation, sliding and retraction, etc.) within the remaining time after collision with given beat during the layout process. All these provided with a practical solution for digital design of optimized model based on convex hull plus rubber band simulation compact layout.

2014 ◽  
Vol 607 ◽  
pp. 821-825
Author(s):  
Yu Jia Zheng ◽  
Feng Ying Long ◽  
Jun Yan Ma ◽  
Wei Xia ◽  
Biao Chen ◽  
...  

Compact layout is a problem widely faced in many branches of science, engineering, is also the key point in lightweight design of product. With the perspective of digital design we divided the layout procedure into three stages-only outers, outer-inner, more objects involved-based on (convex hull plus rubber band) CPR. Motion analysis in each stage is done respectively according to physics principles. Rules of Multi-Object collision response are built in two forms, vertex-edge and edge-edge. Objects motions are determined by their motion analysis and collision response rules. An example of Multi-Object compact layout in stimulation platform is given and feasibility of the method is confirmed.


2012 ◽  
Vol 215-216 ◽  
pp. 1219-1223 ◽  
Author(s):  
Xiao Ping Liao ◽  
Juan Lu ◽  
Jun Yan Ma ◽  
Jia Hai Xue ◽  
Xiao Mo Yu

This paper introduces a novel approach to develop a 2D layout system based on the convex hull plus rubber band analogy. The data processing of convex hull and the rubber band analogy modeling methods are elaborated practically; The rubber band simulating model is built quickly by using the ray scanning method; Collision detection by area algorithm based on Boolean logic is processed; The practical cases of developing 2D layout system are demonstrated to illustrate that the proposed approaches are effective.


Author(s):  
Qi Cheng ◽  
Shuchun Wang ◽  
Xifeng Fang

The existing process equipment design resource utilization rate in automobile industry is low, so it is urgent to change the design method to improve the design efficiency. This paper proposed a fast design method of process equipment driven by classification retrieval of 3D model-based definition (MBD). Firstly, an information integration 3D model is established to fully express the product information definition and to effectively express the design characteristics of the existing 3D model. Through the classification machine-learning algorithm of 3D MBD model based on Extreme Learning Machine (ELM), the 3D MBD model with similar characteristics to the auto part model to be designed was retrieved from the complex process equipment case database. Secondly, the classification and retrieval of the model are realized, and the process equipment of retrieval association mapping with 3D MBD model is called out. The existing process equipment model is adjusted and modified to complete the rapid design of the process equipment of the product to be designed. Finally, a corresponding process equipment design system was developed and verified through a case study. The application of machine learning to the design of industrial equipment greatly shortens the development cycle of equipment. In the design system, the system learns from engineers, making them understand the design better than engineers. Therefore, it can help any user to quickly design 3D models of complex products.


2009 ◽  
Vol 42 (2) ◽  
pp. 91-99 ◽  
Author(s):  
Ehsan Arbabi ◽  
Ronan Boulic ◽  
Daniel Thalmann

2016 ◽  
Vol 44 ◽  
pp. 02046
Author(s):  
Cheng Yi Ou ◽  
Hai Hua Xiao ◽  
Jun Yan Ma ◽  
Xiao Ping Liao

2014 ◽  
Vol 536-537 ◽  
pp. 603-606
Author(s):  
Yu Mei Liu ◽  
Yu Dan Dong ◽  
Jing Wu

According to the characteristics and needs of virtual scenic roaming system, select the appropriate modeling techniques. By using the modeling platform scenic entity object model structure, and then build virtual tourist attractions, we propose hierarchical collision detection methods. This method actually meets the accuracy requirements under the premise, greatly reducing the number and complexity of collision detection; effectively improve the system in real time.


2008 ◽  
Author(s):  
Takashi Kohno ◽  
Kazuyuki Aihara ◽  
Luigi M. Ricciardi ◽  
Aniello Buonocore ◽  
Enrica Pirozzi

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