Research on Key Technologies for Construction of Three-Dimensional Machining Procedure Model Based Definition

2014 ◽  
Vol 1037 ◽  
pp. 464-467
Author(s):  
Hong Lei Zhang ◽  
Yu Guo ◽  
Zhi Cui ◽  
Yong Zeng ◽  
Tie Jun Yuan
Keyword(s):  
Process Planning ◽  
Process Model ◽  
Three Dimensional ◽  
Design Model ◽  
Two Dimensional ◽  
Model Based ◽  
Key Technologies ◽  
Procedure Model

Three-dimensional machining procedure models are used for generating three-dimensional process model and process planning that support machining. It can be realized through extracting information of three-dimensional design model. The consistency of data and visualization of machining can be improved using the technologies for parts, which are compared with the current two-dimensional technology. The key technologies and framework for construction of three-dimensional machining procedure model based definition are researched.

An Approach to Generate Three Dimensional Machining Process Model According to Information from Design Model Based on Definition

2016 ◽  
Vol 693 ◽  
pp. 1684-1692 ◽  
Author(s):  
Hong Lei Zhang ◽  
Wen He Liao ◽  
Yu Guo ◽  
Wen An Yang
Keyword(s):  
Process Model ◽  
Three Dimensional ◽  
Design Model ◽  
Machining Process ◽  
Model Generation ◽  
Geometric Models ◽  
Model Based

Faced with the problem of generation for 3D machining process model, an approach to generate three dimensional machining process model according to information from design model based on definition is proposed. Compared with the existing methods, the approach utilizes multiple information of design model based on definition and takes many phases into consideration of 3D process model generation. The structure of 3D machining process model is defined and the course of 3D process model generation is researched, including multiple information acquirement, generation of procedure geometric models and annotation. Finally, the framework of system and application for 3D machining process model generation are presented for validation purposes.

Exploration of Non-Revolved Parts Modeling Based on MBD and Pro/ENGINEER

2013 ◽  
Vol 712-715 ◽  
pp. 1171-1174 ◽  
Author(s):  
Li Xin Wang ◽  
Yu Guo ◽  
Ming Yue Guo
Keyword(s):  
Three Dimensional ◽  
Great Change ◽  
Two Dimensional ◽  
Modeling Methods ◽  
Model Based ◽  
Boeing Company ◽  
The World ◽  
Definition Of ◽  
Key Steps ◽  
Product Definition

A great change in mechanical industry has occurred after several successful practices using MBD (Model Based Definition) of The Boeing Company. It is an inevitable trend from two-dimensional product definition to three-dimensional product definition in mechanical industry. Several standards for MBD have emerged around the world. This paper explores the non-revolved parts modeling methods based on MBD and Pro/ENGINEER, presents several key steps about full-annotated model per MBD and then makes a conclusion. Following these methods we successfully build a typical non-revolved model which conforms to MBD standards correctly and efficiently.

Research on the Algorithm of Technological Dimension Chain Based on 3D Process Models

2011 ◽  
Vol 58-60 ◽  
pp. 1421-1428
Author(s):  
Zhi Yong Chang ◽  
Jian Xin Yang ◽  
Neng Wan ◽  
Jie Zhao
Keyword(s):  
Process Parameters ◽  
Process Model ◽  
Three Dimensional ◽  
Process Models ◽  
Two Dimensional ◽  
Technological Design ◽  
Process Route ◽  
Process Dimension

Aiming at the wide application of technological design in three-dimensional CAD software, while the technological dimension chain’s calculation is completed in the two-dimensional process sketch still. A sort of method of calculating technological dimension chain was put forward, which is based on three-dimensional process model. Three-dimensional process model is created through the process of technological design by introducing the concept of three-dimensional process model, and then, the information of process dimension is extracted from the three-dimensional process model and a tree oriented process dimension structure is established. On the basis of the above, we can proceed with technological dimension chain’s integrated calculation and analysis, redistributing the process dimension and its corresponding allowance dimension and tolerance. It will offer more reasonable and reliable process parameters to the technologists in the design of process route, and also effectively solve the problems of the technological dimension chain’s calculation involving to CAPP system in the environment of three-dimensional CAD software.

Integrating modeling mechanism for three-dimensional casting process model based on MBD

2016 ◽  
Vol 94 (9-12) ◽  
pp. 3145-3162 ◽  
Author(s):  
Xiaojun Liu ◽  
Xiang Li ◽  
Jialu Xing ◽  
Huayu Chen ◽  
Zhonghua Ni
Keyword(s):  
Process Model ◽  
Three Dimensional ◽  
Casting Process ◽  
Model Based

Research of the Key Techniques of Monitoring On-Orbit Docking for BLRU

2011 ◽  
Vol 110-116 ◽  
pp. 4733-4738
Author(s):  
Wei Ni ◽  
Zhao Xiong ◽  
Qian Xiong ◽  
Ning Tan ◽  
Xiao Dong Yuan ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Measurement Data ◽  
Two Dimensional ◽  
Dimensional Problem ◽  
Monitoring Technology ◽  
Indirect Response ◽  
Key Technologies ◽  
Laser Facility ◽  
Key Techniques

This assay analyzes the docking of BLRU for the SG-Ⅲ Laser Facility, where centering and collision issues are pointed out as the key technologies for BLRU docking monitoring. The centering technology mainly transforms the three-dimensional problem into two-dimensional one, adopting the characteristic of machine version capturing to analyze the position and posture of BLRU. The collision monitoring technology mainly takes advantage of the principle that power is generated in the collision during the process of assembly and calibration. Monitoring the forces from each direction, the degree of indirect response to the collision, returning feedback to the docking platform after measurement data is analyzed, and amending the docking trajectory of the BLRU in time can achieve the light collision docking during the full process of BLRU.

Study on Visual Assembly Process Planning System Based on 3DVIA Composer

2011 ◽  
Vol 179-180 ◽  
pp. 734-739 ◽  
Author(s):  
Lei Chen ◽  
Ming Ran Deng ◽  
Zheng Feng Jiang
Keyword(s):  
Process Planning ◽  
Process Model ◽  
Three Dimensional ◽  
Application Programming Interface ◽  
Planning System ◽  
Assembly Process ◽  
Three Dimensional Model ◽  
Assembly Process Planning ◽  
Assembly Simulation ◽  
Process Planning System

Errors often occur in the assembling process because traditional two-dimensional process cards are lack of three-dimensional realistic in assembling site. Aimed at this problem, a visual assembly process planning system is proposed, which turns assembly process into assembly animation on the basis of three-dimensional model on the platform of 3DVIA Composer. This System combines assembly process planning with assembly simulation, and then realizes the assembly process related to three-dimensional process model and assembly animation and assembly process visualization in assembling site by the application programming interface provided by 3DVIA Composer. The system has been applied to some aircraft parts manufacturing enterprise, and then obviously shortens assembling time and guarantees assembling quality.

scholarly journals Restoration and Design of Ice Sculpture Structure following Multivision Sensor and Three-Dimensional Reconstruction Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Zhuo Liu ◽  
Qi Zhang
Keyword(s):  
High Efficiency ◽  
Three Dimensional ◽  
Design Model ◽  
Three Dimensional Reconstruction ◽  
Model Based ◽  
Visual Sensing ◽  
Manual Group ◽  
Dimensional Reconstruction ◽  
The Difference ◽  
Group 2

The purpose of the study is to improve the structure restoration and design of ice sculptures. This study discusses the concept and artistic expression of ice sculpting based on the relevant theoretical knowledge of visual sensing technology and three-dimensional reconstruction technology. Based on this, the ice sculpture structure restoration and design model based on multivision sensors and three-dimensional reconstruction technology is constructed, and the model is compared with the manual test. The results show that the ice sculpture structure restoration and design model based on a multivision sensor and three-dimensional reconstruction technology is feasible and has high efficiency and stability compared with artificial ice sculpture restoration. In the experiment of structure reconstruction and restoration of an ice sculpture, the manual group 1 spends 237 minutes, the manual group 2 spends 252 minutes, and the time spent by the model group is very stable, which is about 139 minutes. Due to the difference in manual group personnel, their carving time is also different. As the carving continues, the possibility of errors made by the two manual groups increases. Therefore, ice sculpture structure restoration and design based on multivision sensors and three-dimensional reconstruction technology will provide a reference for the study in the field of ice sculpture structure restoration and design.

scholarly journals Posture Estimation of a Human Body from Thermal Images of 2D Appearance Models of 3D Ellipsoidal Model

2009 ◽  
Vol 13 (3) ◽  
pp. 172-177 ◽  
Author(s):  
Mitsuhiro Hayase ◽  
◽  
Susumu Shimada ◽  
Keyword(s):  
Human Body ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Recognition Method ◽  
Thermal Images ◽  
New Model ◽  
Model Based ◽  
Ellipsoidal Model ◽  
Posture Estimation ◽  
Appearance Models

We propose a new model-based recognition method that involves the use of three-dimensional (3D) ellipsoidal models in various sizes and proportions as well as their two-dimensional (2D) appearance models. Most model-based vision is intended to recognize specified objects, and the model is specific to the object. However, our method can recognize various proportions of objects and was applied in posture estimation of the human body from thermal images.

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