A Haptic-Based Approach for Cable Design and Routing in Industrial Complex Products

2010 ◽  
Vol 139-141 ◽  
pp. 1356-1360 ◽  
Author(s):  
Gang Sun ◽  
Ping Jun Xia ◽  
Yuan Li ◽  
Wang Min Yi ◽  
Lei Huang
Keyword(s):  
Force Feedback ◽  
Modeling Method ◽  
Physical Models ◽  
Industrial Complex ◽  
Complex Products ◽  
Cad System ◽  
Geometry Modeling ◽  
Product Models ◽  
Physics Modeling ◽  
Fitting In

Cable design and routing is a time-consuming and costly process for industrial complex products, traditionally it is finished by experienced engineers through soft lead or aluminum wire fitting in physical models, or by automatic or semi-automatic computing method in CAD system, but both with little success. In this paper, a new haptic-based interactive method is proposed. After rigid product models are loaded from CAD system, a geometry modeling method is used to represent cable shape, a physics modeling method for calculating cable deformation, and a haptic modeling method for interaction and force feedback. In this prototyping system, the user can define cable position and path, change its shape and size, and then simulate the design and routing process with haptic to feel the touch, collision and force feedback.

An Assembly Process Model Involved Resource for Complex Products

2012 ◽  
Vol 268-270 ◽  
pp. 845-850
Author(s):  
Gang Sun ◽  
Yuan Li ◽  
Jian Feng Yu ◽  
Jie Zhang ◽  
Liang Dong
Keyword(s):  
Graph Theory ◽  
Process Planning ◽  
Process Model ◽  
Modeling Method ◽  
Assembly Process ◽  
Product Model ◽  
Typical Structure ◽  
Complex Products ◽  
3D Environment ◽  
Interactive Relationship

Fixtures, tools, and other assembly resources have an important role in the assembly of complex products, so it is very necessary to consider the interactive relationship between the resources model and the product model for assembly order planning in 3D environment. Firstly, the features of assembly process planning involved resources are analyzed. Secondly, the concept of the assembly process intention（AsmPI） is introduced，and an assembly process can be divided into an AsmPI sequence. Thirdly, based on the graph theory, a resource-involved assembly process model is built up. At last, setting a typical structure as an example, the validity of this modeling method is verified.

Optimization in a Design System for Complex Products

1992 ◽  
Author(s):  
Johan Malmqvist
Keyword(s):  
Parametric Design ◽  
System Optimization ◽  
Optimization Method ◽  
Design System ◽  
Design Problems ◽  
Design And Optimization ◽  
Complex Products ◽  
Knowledge Based ◽  
Product Models ◽  
Use Of Knowledge

Abstract This paper describes a system for parametric design and optimization of complex products. In the system, the use of knowledge-based and mathematical programming methods is combined. The motivation is that while knowledge-based methods are well suited for modeling products, they are insufficient when dealing with design problems that can be given an optimization formulation. This weakness was approached by including the information necessary for stating an optimization problem in the product models. A system optimization method can then be applied. The system also performs sensitivity analysis and has an interactive optimization module. The use of the system is illustrated by an example; the design and optimization of a two-speed gearbox.

Development of LCA Module Integrated With CAD for Eco-Assessment of Machined Products

2018 ◽  
Author(s):  
Jing Tao ◽  
Suiran Yu
Keyword(s):  
Life Cycle ◽  
Feature Representation ◽  
Coding System ◽  
Modeling And Analysis ◽  
Daily Work ◽  
Related Data ◽  
Cad System ◽  
Design Attributes ◽  
Product Models ◽  
Feature Based

LCA predicts the life cycle impacts of product solutions and can help determine what solution is better for the environment. However, LCA is very data dependent and requires in-depth knowledge to explicit relate environmental impacts of product to its design attributes. Current LCA methods are generally still not adapted to designers, who often lack the expertise and time to make LCA efficiently useful to their daily work. This study aims to develop a LCA module integrated with CAD system for machined products. The module employs a feature-based approach for identify, extract and convert life cycle related data in existing product models for LCA modeling and analysis. A coding system for machining feature representation and a rule-based reasoning package to generate manufacturing plans based on feature codes are developed to enable convenient eco-assessment along with CAD modeling of machined products. A step shaft LCA case study is presented to demonstrate the proposed approach.

Conceptual Design Using Generic Object Inheritance

2008 ◽  
Author(s):  
Olof Johansson ◽  
Henric Andersson ◽  
Petter Krus
Keyword(s):  
Conceptual Design ◽  
Power Plants ◽  
Design Parameters ◽  
Product Model ◽  
Complex Products ◽  
Business Jet ◽  
Product Models ◽  
Multiple Copies ◽  
The Impact

Conceptual design for complex products like aircraft and power plants requires a considerable effort since the product models become very large if they are to cover all important aspects for different stakeholders. To cope with this overall effort, designers have to rely on legacy designs and reuse, and improve the product concepts incrementally between product generations. This paper describes a generalized inheritance mechanism we call generic object inheritance that enables quick reuse and modification of conceptual product models at any level in their hierarchical break down structures. By facilitating reuse of conceptual models of previously well studied products, more time can be spent on developing the parts that contain the edge of a new product generation. This enables keeping the modified concepts in context of a complete analyzable product model where the impact of changes can be studied without having to maintain multiple copies of the same object structures. The paper describes how generic object inheritance is used for developing the next version of a conceptual product model of a small business jet, while reusing the essential parts of the previous version with minor modifications to design parameters and substructures. The design and core mechanisms of generic object inheritance are briefly described, and illustrated with examples from the case study.

Project management for creating technically complex products based on the use of socio-physical models

2020 ◽  
pp. 71-86
Author(s):  
I.Z. Mustaev ◽  
◽  
N.K. Maksimova ◽  
T.I. Mustaev ◽  
◽  
...  
Keyword(s):  
Project Management ◽  
Physical Models ◽  
Complex Products
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