Modeling Framework for a Consistent Integration of Geometry Knowledge During Conceptual Design

2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Romain Barbedienne ◽  
Olivia Penas ◽  
Jean-Yves Choley ◽  
Peter Hehenberger
Keyword(s):  
Conceptual Design ◽  
Collaborative Design ◽  
Computer Aided Design ◽  
System Modeling ◽  
Data Consistency ◽  
Design Stage ◽  
Modeling Framework ◽  
Physical Constraints ◽  
3D Cad ◽  
Architecture Modeling

This paper proposes a modeling framework for a consistent geometrical data link between a system model and a spatial architecture modeling in a 3D computer-aided design (CAD) environment, with a model-based system engineering (MBSE) approach. Our approach, focused on the conceptual design stage, for the evaluation of 3D architecture under physical constraints, aims at improving the system design by ensuring data consistency during collaborative design. This model transformation platform will ensure a seamless geometrical consistency and traceability from the requirements to the further design stages. The theoretical formalization of our approach presents a consistent integration of geometry knowledge all along the conceptual design. Then, the corresponding modeling platform implementation between the developed system modeling language (SysML) geometrical extension and a 3D CAD tool is described before detailing an application on a conveyor case study.

Managing Dependencies for Collaborative Design

2000 ◽  
Author(s):  
Kai-Lu Wang ◽  
Yan Jin
Keyword(s):  
Collaborative Design ◽  
Formal Model ◽  
Design Stage ◽  
Modeling Framework ◽  
Design Decomposition ◽  
Engineering Problems ◽  
Coordination Framework ◽  
Dependency Management ◽  
Coordination Methods

Abstract In collaborative engineering, the dependencies of engineering problems determine with whom and how designers should coordinate. Based on the directed dependency framework introduced in this research, we argue that the reciprocal and cyclic dependencies cause design iterations and inefficiencies, and should be avoided if possible. By studying the patterns of engineering dependencies and design decomposition, this paper provides an approach to manage the dependencies in order to avoid reciprocal and cyclic dependencies both in the early conceptual design stage and in design task arrangement stage, to make collaborative design more efficient. The long-term goal of this research is to develop a dependency-based coordination framework that consists of a formal model of engineering dependencies, and coordination methods, and guidelines for dependency-based engineering design and management. This paper describes our current dependency modeling framework and dependency management methods for collaborative design.

Real-Time Collaborative Design With Heterogeneous CAD Systems Based on Neutral Modeling Commands

2006 ◽  
Vol 7 (2) ◽  
pp. 113-125 ◽  
Author(s):  
Min Li ◽  
Shuming Gao ◽  
Charlie C. L. Wang
Keyword(s):  
Real Time ◽  
Collaborative Design ◽  
Computer Aided Design ◽  
Time Synchronization ◽  
System Modeling ◽  
Cad Systems ◽  
Network Bandwidth ◽  
Product Models ◽  
Aided Design ◽  
Developing System

This paper presents an integration-based solution for developing a real-time collaborative design (co-design) platform on heterogeneous computer-aided design (CAD) systems. Different from the visualization-based approaches, the product models are allowed to be constructed and modified from various sites together in the proposed collaborative design platform. Our approach is based on a mechanism for the translation between system modeling operations (SMOs) and neutral modeling commands (NMCs). Every operation given by a user on one site is translated into a NMC and transmitted to all the other sites through the network, and then the received NMC is converted into corresponding SMOs on every other site, instantaneously. Since only the commands but not the product data are transferred, the data size under transmission is greatly reduced, so that a real-time synchronization can be achieved with a standard network bandwidth. In addition, by developing system-dependent SMO↔NMC translators on different client CAD systems, users on different sites could join the collaboration by using their familiar CAD systems; this is the benefit that cannot be offered by the homogeneous co-design systems. The prototype implementation proves that our approach works well for integrating various current popular commercial CAD systems into a real-time collaborative design platform.

A Port-Based Approach to Configuration Design of Mechanical Products

2008 ◽  
Vol 44-46 ◽  
pp. 471-478
Author(s):  
Dong Xing Cao ◽  
Xiao Jun Zhang ◽  
Q.L. Jia ◽  
L.X. Nan
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Design Stage ◽  
Configuration Design ◽  
System Configuration ◽  
Modeling Framework ◽  
Functional Description ◽  
Ontology Language ◽  
Mechanical Products ◽  
Ontology Repository

Configuration design lies in the later stage of the conceptual design. It affects the downstream of design process and decides product structure. Therefore, it is necessary to pursue an approach to support such design stage activities. Port, as the location of intended interaction, plays an important role in the configuration design, which abstractly represents the intended exchange of signals, energy or material in a convenient way. Ontology is an unambiguous and flexible semantic specification corresponding entities, and it can effectively describe the function of port. In this paper, we firstly give port concept and port functional description, and their semantic synthesis is used to describe port ontology. Second, we build an ontology repository which contains the assorted primitive concepts and primitive knowledge to map the component connections and interactions. Meanwhile we provide a model of port-based multi-views which contains functional view, behavior view and configuration view, and gives the attributes and taxonomy of ports. Next, a port-based ontology language (PBOL) is described to represent the process of port ontology refinement, and a port-based FBS modeling framework is presented to describe system configuration. Finally, a revised tape case is given to show the application of the port-based ontology.

A Collaborative Design-by-Sketching Conceptual Design Tool for Multimedia Application Development

2011 ◽  
pp. 231-238
Author(s):  
K.-Y. R. Li ◽  
T. Ong ◽  
R. J. Willis
Keyword(s):  
Conceptual Design ◽  
Collaborative Design ◽  
User Involvement ◽  
Cost Effective ◽  
Multimedia Applications ◽  
Design Tool ◽  
Design Stage ◽  
Computer Assisted ◽  
Multimedia Technology ◽  
Application Development

Multimedia technology is advancing at a significant rate and is now revolutionizing the way in which computers are being used in business. Multimedia technology can only benefit a company when applications are properly developed to exploit technology, in order to enhance the company’s operation. Unfortunately, to develop high-quality, cost-effective multimedia applications is not an easy task. There are many issues and challenges that developers are currently facing. Issues such as the difficulties in defining the project scope, communication difficulties amongst the development team, and estimate difficulties, making the development process both labour-intensive and time-consuming (Li and Willis, 1998). Sponsors of multimedia projects are often unsure of their requirements at the start of the project. Sponsor/user involvement in the abstract (conceptual) design stage of the project is therefore important. This chapter presents a computer assisted design-by-sketching tool to help with the conceptual design of multimedia applications. The tool helps sponsors to define their requirement incrementally and the design team to prototype their ideas interactively and collaboratively. It assists the developer to define the balance between consistency, which helps the readers (users) to understand the overall structure, and diversity, which gives freshness to the design. This tool will also enable re-usability of the designed components in future projects and maintainability of the application that it has developed.

PDA Based Anywhere — Anytime Collaborative CAD for Conceptual Design

2004 ◽  
Author(s):  
Zahed Siddique ◽  
Zhiqiang Chen
Keyword(s):  
Conceptual Design ◽  
Collaborative Design ◽  
Geometric Modeling ◽  
Concept Development ◽  
Handheld Computers ◽  
Design Stage ◽  
Design Environment ◽  
Agent Based ◽  
Wired Networks ◽  
Access Information

Advances in handheld computers are providing a device that is pocket-sized, ultra-light, and wireless. The new handheld computers are providing an opportunity to not only access information from electronic repositories, but also to run software to perform activities and to collaborate with experts “anywhere/anytime”. The confluence of ubiquitous wireless networking and powerful handheld computers provide a powerful technology base for providing an environment, which can support distributed and mobile usage and enhance collaboration during different product design and development stages. Graphics, which include geometric modeling, is one of the most widely used methods of communication during the design phase. In this paper we present a framework and tool to provide CAD support during conceptual design stage for a distributed and collaborative design environment. The HCAD framework, is based on a combination of handheld computers and servers, interconnected by wireless and wired networks. An agent based approach is utilized to allow collaboration during concept development. The applicability of the HCAD framework is demonstrated through the development of a concept for an automotive center console.

scholarly journals A Port-Based Agent Approach to Guiding Concept Generation for Customizing Modular Varieties

2010 ◽  
Author(s):  
Dongxing Cao ◽  
Karthik Ramani ◽  
Ming Wang Fu ◽  
Runli Zhang
Keyword(s):  
Product Development ◽  
Conceptual Design ◽  
Design Process ◽  
Collaborative Design ◽  
Product Configuration ◽  
Design Stage ◽  
Concept Generation ◽  
Product Decomposition ◽  
Solution Generation ◽  
New Concepts

As the description of design requirements at the earlier design stage is inaccurate and vague, it is difficult to figure out functional structure of a product and make sense product configuration. Therefore, it plays an important role to formally represent the process of design for product development in the conceptual design stage. Furthermore, port, as the location of intended interaction, is crucial to capture component concept and realize conceptual design for multi-solution generation. Agent is considered as an effective approach to collaboratively implementing design problem solving and reasoning. Combining both port and agent may be employed to generate new concepts of the product in order to customize product scheme varieties. In this paper, the product module attributes are firstly described. The objective is to implement modeling of design process for obtaining system new concepts to guide multi-solution generation. Secondly, an effective approach to decomposing design process is presented to describe the process of structure generations and product decomposition by formal representation. According to properties of modularity for product development and component connections, we can calculate the number of component connections and density of components. In addition, product module division and coupling degree analysis are conducted, and coupling degrees are calculated by considering the correspondence ratio and the cluster independence. A port-based knowledge building process is described for functional modeling. A port-agent collaborative design framework is given and describes different agent functions to help designers to obtain new design schemes. Finally, a case study is presented to describe the modeling process of conceptual design.

Integrating 3D Modeling, Sustainability and Cost Estimating at the Conceptual Design Stage of Bridges

2021 ◽  
Author(s):  
Aly Elgayar ◽  
Ahmad Jrade
Keyword(s):  
Conceptual Design ◽  
3D Modeling ◽  
Environmental Performance ◽  
Design Stage ◽  
Cost Estimating ◽  
Rule Based ◽  
3 Dimensional ◽  
3D Cad ◽  
Conceptual Design Stage ◽  
Bridge Type

Integrated 3D Modeling adaptation on infrastructure has been slow due to technical challenges, such as the lack of interoperability between software. In an effort to partially fill this gap, a versatile model with 3D Modeling capabilities was developed to assist in designing sustainable bridges at the conceptual design stage. The model incorporates a rule-based expert system and four modules, namely: 3D CAD modeling, Bridge Sustainability Rating System (BrSRS), Bridge Environmental Performance Strategy Mapping (BrEPSM), and conceptual cost estimating. The 3D CAD module was developed using the Graphics.DrawLine method. The BrSRS and BrEPSM modules were developed by the amalgamation of identified pertinent sustainable and footprint indicators. The model aims to provide bridge type recommendations, allow customization of a sustainable bridge, illustrate forecasted footprint levels, present the conceptual design in AutoCAD’s 3-dimensional (3D) mode, facilitate a recalculation process when the bridge’s dimensions are altered, and generate a conceptual cost estimate.

Sign in / Sign up

Export Citation Format

Share Document