A Variant Design Method of Assembly Based on Tree Structure

2011 ◽  
Vol 421 ◽  
pp. 263-266
Author(s):  
Hai Xin Zhao ◽  
Fu Yun Liu ◽  
Ying Sun ◽  
Kun Xu
Keyword(s):  
Design Method ◽  
Sorting Algorithm ◽  
Market Demand ◽  
Variant Design ◽  
Product Variant ◽  
Joint Coupling ◽  
Key Technologies ◽  
Transfer Method ◽  
Dimension Parameter ◽  
Product Dimension

In the current market demand of rapid response manufacturing, the product variant design technology is one of the key technologies. Product variant design principles and methods are first described. Then, product dimension parameter is analyzed and product dimension parameter transferring structure is studied. Applying tree theory to product variant design, a dimension relation driving-tree of components and parts is constructed and the significance of driving-tree statistics and a dimension parameters transfer method are presented. The methods and processes which are applied to variant design and the sorting algorithm of relations are described in detail. A parameterized variant design module integrated with SolidWorks was developed with VC + +. All the above mentioned methods and processes are verified by taking a joint coupling product as an example.

Component Variant Design Method Integrating Dimension and Tolerance

2011 ◽  
Vol 201-203 ◽  
pp. 1151-1155
Author(s):  
Bing Kuang ◽  
Li Zhi Xiao ◽  
Fu Yun Liu ◽  
Yong Hou Sun
Keyword(s):  
Conventional Method ◽  
Design Method ◽  
Tolerance Design ◽  
Market Demand ◽  
Variant Design ◽  
Product Variant ◽  
Design Tolerance ◽  
Key Technologies ◽  
The Status

Product variant design is one of the key technologies of Manufacturing Enterprise for responding market demand. During the product variant design, tolerance variant design plays an important role. However, tolerance variant design is considered rarely in the researches of product variant design. To solve the problem of tolerance design in product variant design, a component variant design method integrating dimension and tolerance is presented in this paper. The fundamental and implement of component dimension variant design is introduced. Through analyze the conventional tolerance design method; the status for tolerance variant with its implemental dimension is marked as fixed tolerance value, fixed tolerance grade and tolerance value variant with special regular. The equation of dimensional tolerance variants with the value of implemental dimension is presented. So the procedure of component variant design method integrating dimension and tolerance is proposed. Finally, a case study of output shaft of reducer illustrates the implemental process of proposed method. Result comparing with conventional method shows effectiveness of proposed method.

Research on Variant Design Method of Dimensional Tolerance Based on Parametric Technology

2010 ◽  
Vol 139-141 ◽  
pp. 1131-1135
Author(s):  
Li Zhi Xiao ◽  
Bing Kuang ◽  
Fu Yun Liu ◽  
Mei Fa Huang ◽  
Jing Zhang
Keyword(s):  
Design Method ◽  
Market Demand ◽  
Manufacturing Enterprise ◽  
Variant Design ◽  
Dimensional Tolerance ◽  
Design Information ◽  
Product Variant ◽  
Key Technologies ◽  
Part Dimension ◽  
Labeling Method

Product variant design is one of the key technologies of Manufacturing Enterprise for responding market demand. During the product variant design, dimensional tolerance variant design plays an important role. However, dimensional tolerance variant design is considered rarely in the researches of product variant design. To solve the dimensional tolerance variant design during product variant design, information expression, extraction and labeling method of dimensioning of dimensional tolerance of part dimension model is investigated. A variant design method with dimensional tolerance is presented in this paper. In the method, dimension variant design and dimensional tolerance variant design are integrated, so dimension variant design and dimensional tolerance variant design are implemented concurrently. A part variant design module with dimension and dimensional tolerance based on SolidWorks is developed for using Visual C++. Finally, an example of shaft illustrates the proposed method.

Dimension Parameter Transfer Method Based on Constraint Satisfaction Priority in Variant Design

2009 ◽  
Vol 16-19 ◽  
pp. 203-207 ◽  
Author(s):  
Wei Ping Shao ◽  
Yong Ping Hao ◽  
Yang Wang ◽  
Yong Xian Liu
Keyword(s):  
Network Model ◽  
Constraint Satisfaction ◽  
Variant Design ◽  
Design Concepts ◽  
Product Variant ◽  
Constraint Relation ◽  
Design Systems ◽  
Transfer Method ◽  
Dimension Constraint ◽  
Dimension Parameter

In order to accommodate the increasing variety of costumers’ demands, manufacturers tend to produce different models of the same product by introducing variant design concepts that improve the flexibility of design systems. In this paper, an approach based on constraint satisfaction priority is proposed to solve the dimension parameter transferring problem. Firstly, product variant parameters and variant relations are analyzed. Secondly, dimension constraint relation network model is conceived and parameters constraint forms is discussed. Finally, a parameters transfer method based on constraint satisfaction priority is established.

A Variant Design Method of Assembly

2010 ◽  
Vol 139-141 ◽  
pp. 1126-1130
Author(s):  
Fu Yun Liu ◽  
Ni Ya Lu ◽  
Bing Kuang
Keyword(s):  
Design Method ◽  
Design Efficiency ◽  
Variant Design ◽  
Development Technology ◽  
Relationship Network ◽  
Transfer Method ◽  
Assembly Constraints ◽  
The Relationship

To improve the design efficiency of product, the variant design method of assembly is researched. Firstly, the identifying and extracting method of assembly constraints is researched, and an identifying and extracting method of assembly constraints based on the re-development technology of SolidWorks is presented. With the identifying and extracting method, assembly constraints are obtained and a relationship network of them is built. Secondly, a method for dimensions to transfer around the relationship network of assembly constraints is researched and a dimension transfer method is put forward. Then a dimension modify method of assembly based on the dimension transfer method is obtained. Lastly, a variant design method of assembly based on the dimension transfer and dimension modify method is presented and a variant design module integrated into SolidWorks is developed. As an example, all methods are applied to a coupling assembly, and the methods are verified.

AN INDEPENDENT ACTIVE BALANCER FOR PLANAR MECHANISMS

2007 ◽  
Vol 31 (2) ◽  
pp. 167-190 ◽  
Author(s):  
Zhang Ying ◽  
Yao Yan-An ◽  
Cha Jian-Zhong
Keyword(s):  
Working Conditions ◽  
Design Method ◽  
Design Procedure ◽  
Vibration Absorber ◽  
Planar Mechanisms ◽  
Dynamic Balancing ◽  
Joint Coupling ◽  
Design Requirements ◽  
Novel Concept ◽  
Two Degree Of Freedom

This paper proposed a novel concept of active balancer for dynamic balancing of planar mechanisms. Somewhat similar to a vibration absorber, the active balancer is designed as an independent device, which is placed outside of the mechanism to be balanced and can be installed easily. It consists of a two degree-of-freedom (DOF) linkage with two input shafts, one of which is connected to the output shaft of the mechanism to be balanced by a joint coupling, and the other one is driven by a controllable motor. Flexible dynamic balancing adapted to different working conditions can be achieved by varying speed trajectories of the control motor actively. A design method is developed for selecting suitable speed trajectories and link parameters of the two DOF linkage of the balancer to meet various design requirements and constraints. Numerical examples are given to demonstrate the design procedure and to verify the feasibility of the proposed concept.

Research on the Facilities Layout Planning in MTO Manufacturing Industry Based on Genetic Algorithm

2013 ◽  
Vol 842 ◽  
pp. 695-702
Author(s):  
Ying Wang ◽  
You Rong Li ◽  
Yu Qiong Zhou
Keyword(s):  
Genetic Algorithm ◽  
Manufacturing Industry ◽  
Design Method ◽  
Facility Layout ◽  
Optimization Method ◽  
Market Demand ◽  
Layout Planning ◽  
Manufacturing Enterprises ◽  
Make To Order ◽  
Systematic Layout Planning

To enlarge production to meet the market demand, its nessasery to improve the present facility layout for MTO (Make-To-Order) manufacturing enterprises. This paper tries to design a optimization method based on genetic algorithm for the facility layout of MTO enterprises. Firstly, SLP (systematic layout planning) was applied to analyze the material and non-material flow interrelation of the workshop. Secondly, a relatively optimum layout was determined after using fuzzy hierarchy estimation to evaluate the schemes. Then the scheme was optimized with genetic algorithm. The result shows that the optimized logistics transport load is obviously less than before. This design method based on genetic algorithm (GA) is proved feasible and effective in the optimization of facility layout.

Research on the information transfer characteristics of dimensions in the product variant design process

2017 ◽  
Vol 32 (1) ◽  
pp. 59-74
Author(s):  
Xinsheng Xu ◽  
Tianhong Yan ◽  
Yangke Ding
Keyword(s):  
Design Process ◽  
Information Transfer ◽  
Variant Design ◽  
Constraint Network ◽  
Product Variant ◽  
Transfer Characteristics ◽  
Transfer Capability ◽  
Variant Information ◽  
Key Enabling Technologies ◽  
Natural Dynamics

AbstractProduct variant design, as one of the key enabling technologies of mass customization, is the transfer of variant information among mating parts from the perspective of informatics. A dimension constraint network (DCN) among mating parts carries on the task of transferring variant information. What are the information transfer characteristics of dimensions in a constraint network is a fundamental issue to plan the product variant design process reasonably. We begin by showing the natural dynamics of the DCN from two aspects: structure and uncertainty. The information efficiency of the DCN was proposed based on its simple path to specify the information transfer capability of the network. Based on this, the information centrality of the dimension was developed by measuring the efficiency loss of the DCN after the removal of a dimension from the network, which describes the information transfer capability of this dimension. Further, the information centrality of a part was derived. Using a spherical valve subassembly, we calculated the information centrality of the dimensions in a constraint network. We determined that the information centrality of dimension is highly correlated to its out-degree. An approach to plan the sequence of the part variant design according to its information centrality was proposed. We calculated the uncertainties of the DCN and its cumulative uncertainties under different sequences of the part variant design. Results indicate that part variant design under the descending information centrality of the parts minimizes the uncertainty of the DCN. This suggests a new method of planning the sequence of part variant design.

A Method for Real-Time Radar Signal Main Sorting

2013 ◽  
Vol 760-762 ◽  
pp. 567-571
Author(s):  
Hong Chao Wu ◽  
Wei Hua Xiao ◽  
Jian Feng Pu
Keyword(s):  
Real Time ◽  
Pulse Sequence ◽  
High Accuracy ◽  
Radar Signal ◽  
Sorting Algorithm ◽  
The Real ◽  
Sorting Algorithms ◽  
Key Technologies ◽  
Simulation Results ◽  
Sequence Simulation

The real-time radar signal sorting is one of the key technologies for electronic reconnaissance, first analyzes the defects of traditional main sorting algorithms, and then proposes a comprehensive main sorting algorithm. The method first uses the SDIF algorithm to sort PRI fixed and PRI stagger radar signal, then uses dynamic expansion association method to search PRI jitter radar signal. When using the SDIF algorithm, in order to improve the efficiency of extraction of PRI, first taking amplitude pretreatment, then only accumulate the signals whose amplitude meet certain requirements. After extracting PRI, extract to the original full pulse sequence. Simulation results show that the method of sorting has high accuracy and good real-time.

Key Technologies in Design and Realization of Simulation Software for the Satellite Experimentations’ Inversion

2012 ◽  
Vol 241-244 ◽  
pp. 2872-2877
Author(s):  
Lei Shi ◽  
Zhi Li ◽  
Can Xu ◽  
Yong Zhe Shao
Keyword(s):  
Observational Data ◽  
Software Design ◽  
Design Method ◽  
Simulation Software ◽  
Inverse Theory ◽  
Analysis And Evaluation ◽  
Overall Design ◽  
Key Technologies ◽  
Developing Platform ◽  
Energy Conservation Principle

To fulfill the requirements of processing, analysis and inversing the observational data of experimentations, simulation software for the inversion of satellite experimentations is designed and developed independently on the developing platform of Qt, based on satellite observational data inverse theory. It provides a simulation and calculation platform for analysis and evaluation of space tests. By using dynamics principle and energy conservation principle, the software resolves inverse problems in satellite orbital dynamics. This article mainly presents the function and design method of the software, explains the design goals, shows the overall design framework, and emphasizes key technologies and countermeasures in process of the software design and realization. The software could be used to investigate the inversion of observational data and evaluate technologic indexes in satellite tests.

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