Engineering Objective Controls Knowledge Driven Product Definition in Industrial Product Development

2013 ◽  
Vol 300-301 ◽  
pp. 1494-1499 ◽  
Author(s):  
László Horváth ◽  
Imre J. Rudas
Keyword(s):  
Product Development ◽  
Product Lifecycle Management ◽  
New Method ◽  
Product Modeling ◽  
Product Model ◽  
Integrated Product Development ◽  
Knowledge Based ◽  
Current Product ◽  
Knowledge Content ◽  
Product Definition

High information content of integrated engineering activities stimulated development of product modeling during the past decades in order to support information management for lifecycle of products. Mechatronics is one of the engineering areas those require integrated product development techniques with strong knowledge based modeling and simulation in their background. The authors of this paper analyzed product modeling advancements in industrially applied product lifecycle management (PLM) systems in order to conceptualize new method to enhance knowledge content in product model. As a result of this analysis, they proposed a new method for control of product definition which extends the existing control in current PLM systems. This method is a contribution to solution for problems in current product modeling and is called as coordinated request based product modeling (CRPM). CRPM applies actual requested product definition (ARPD) as extension to currently applied product model. In this paper, the new method and entities as well as engineering objective definition and product behavior handling are explained as main contributions by the proposed modeling.

New Collaboration between Engineer and Product Feature Generation in Industrial PLM Systems

2013 ◽  
Vol 300-301 ◽  
pp. 273-279 ◽  
Author(s):  
László Horváth ◽  
Imre J. Rudas
Keyword(s):  
Product Lifecycle Management ◽  
Human Model ◽  
Generation Process ◽  
Product Modeling ◽  
Product Model ◽  
Intelligent Computing ◽  
Human Needs ◽  
Knowledge Based ◽  
Knowledge Content ◽  
Definition Of

This paper introduces a new method for the communication between human and product model entity definition processes. As product definition is moving into modeling in industrial product lifecycle management (PLM) systems, and built-in knowledge and intelligent computing content of product models increase, development of product modeling faces new challenges. More often, knowledge content is not in accordance with authorized human intent and different intents of different authorized humans for the same task are not in harmony. At the same time, authorized human needs help to understand decisions of other humans at application and modification of existing entity definitions in product model. The authors of this paper found the answer for the above challenges in a new human-model generation communication which extends the conventional product feature definition to higher level definition of objectives and allows for harmonizing different human intents. This communication applies higher level connection of human and product object generation process by knowledge based contextual chain in which model entities are more appropriate for knowledge content based decisions as the currently applied knowledge ware features. The proposed communication is devoted as extension to currently applied one so that the new decision assistance can be integrated with the well proven feature driven current industrial modeling.

A Computational Product Model for Conceptual Design Using SysML

2009 ◽  
Author(s):  
Stefan Wo¨lkl ◽  
Kristina Shea
Keyword(s):  
Product Development ◽  
Conceptual Design ◽  
Mechanical Design ◽  
System Development ◽  
Concept Design ◽  
Product Modeling ◽  
Product Model ◽  
Mechatronic Systems ◽  
Starting Point

The importance of the concept development phase in product development is contradictory to the level and amount of current computer-based support for it, especially with regards to mechanical design. Paper-based methods for conceptual design offer a far greater level of maturity and familiarity than current computational methods. Engineers usually work with software designed to address only a single stage of the concept design phase, such as requirements management tools. Integration with software covering other stages, e.g. functional modeling, is generally poor. Using the requirements for concept models outlined in the VDI 2221 guideline for systematic product development as a starting point, the authors propose an integrated product model constructed using the Systems Modeling Language (SysML) that moves beyond geometry to integrate all necessary aspects for conceptual design. These include requirements, functions and function structures, working principles and their structures as well as physical effects. In order to explore the applicability of SysML for mechanical design, a case study on the design of a passenger car’s luggage compartment cover is presented. The case study shows that many different SysML diagram types are suitable for formal modeling in mechanical concept design, though they were originally defined for software and control system development. It is then proposed that the creation and use of libraries defining generic as well as more complicated templates raises efficiency in modeling. The use of diagrams and their semantics for conceptual modeling make SysML a strong candidate for integrated product modeling of mechanical as well as mechatronic systems.

scholarly journals The Open Assembly Model for the Exchange of Assembly and Tolerance Information: Overview and Example

2004 ◽  
Author(s):  
M. M. Baysal ◽  
U. Roy ◽  
R. Sudarsan ◽  
R. D. Sriram ◽  
K. W. Lyons
Keyword(s):  
Product Development ◽  
Information Exchange ◽  
Computer Aided Design ◽  
Product Information ◽  
Product Lifecycle Management ◽  
Product Development Process ◽  
Assembly Model ◽  
Model Data ◽  
Product Model ◽  
Seamless Integration

In early design phases an effective information exchange among CAD (Computer Aided Design) tools depends on a standardized representation for the product data in all PLM (Product Lifecycle Management) tools. The NIST Core Product Model (CPM) and its extension are proposed to provide the required base-level product model that is open, non-proprietary, generic, extensible, independent of any one product development process and capable of capturing the full engineering context commonly shared in product development [1,2]. The Open Assembly Model (OAM) Model extends CPM to provide a standard representation and exchange protocol for assembly. The assembly information model emphasizes the nature and information requirements for part features and assembly relationships. The model includes both assembly as a concept and assembly as a data structure. For the latter it uses the model data structures of ISO 10303, informally known as the Standard for the Exchange of Product model data (STEP)[3]. The objective of the paper is to show how the OAM can be used to realize seamless integration of product information, with an emphasis on assembly, throughout all phases of a product design. A gearbox design example is used to illustrate the process.

scholarly journals Supporting Lifecycle Management of Product Data by Organized Descriptions and Behavior Definitions of Engineering Objects

2007 ◽  
Vol 11 (9) ◽  
pp. 1107-1113 ◽  
Author(s):  
László Horváth ◽  
Keyword(s):  
Product Space ◽  
Product Lifecycle Management ◽  
Product Modeling ◽  
Product Model ◽  
Intelligent Space ◽  
Product Models ◽  
Customer Services ◽  
High Level ◽  
Lifecycle Management ◽  
Adaptive Actions

Engineering for design, analysis, and manufacturing planning of products has been integrated with other product related engineering activities such as control of manufacturing equipment, marketing, sales and customer services in product lifecycle management systems (PLM). This challenging complex of activities would be impossible without the support of recent information technology (IT). Descriptions of various engineering objects have been integrated into very complex product models. Main area of development in the next future is enhanced assistance of decisions in product modeling. Approach to high level of modeling and application of the highly integrated product model for simulation will be the virtual intelligent space where all outside and inside effects are reacted. In order to join this tendency, this paper introduces a methodology for integrated application of analysis of behaviors of modeled objects, adaptive actions for controlled modifications of engineering objects, and definition of optimal sets of parameters. In order to establish a virtual intelligent space, sensor signals in physical intelligent space are replaced by received change information and actuators are replaced by adaptive actions. In this paper, new concept of intelligent virtual product space (IVPS) as integrated description of physical product and other objects and processes is introduced. Following this, a method is proposed to include computational intelligence in product models in the form of control of behaviors of modeled product objects. Change management methods are explained in close connection with behavior analysis. Finally, some methods for control of the work of a virtual intelligent product space are detailed.

scholarly journals A framework for similarity recognition of CAD models

2016 ◽  
Vol 3 (3) ◽  
pp. 274-285 ◽  
Author(s):  
Leila Zehtaban ◽  
Omar Elazhary ◽  
Dieter Roller
Keyword(s):  
Product Development ◽  
Code Generation ◽  
Feature Recognition ◽  
Recognition Algorithm ◽  
Product Lifecycle Management ◽  
Design Parameters ◽  
Design Decisions ◽  
Knowledge Based ◽  
Two Factors ◽  
Cad Models

Abstract A designer is mainly supported by two essential factors in design decisions. These two factors are intelligence and experience aiding the designer by predicting the interconnection between the required design parameters. Through classification of product data and similarity recognition between new and existing designs, it is partially possible to replace the required experience for an inexperienced designer. Given this context, the current paper addresses a framework for recognition and flexible retrieval of similar models in product design. The idea is to establish an infrastructure for transferring design as well as the required PLM (Product Lifecycle Management) know-how to the design phase of product development in order to reduce the design time. Furthermore, such a method can be applied as a brainstorming method for a new and creative product development as well. The proposed framework has been tested and benchmarked while showing promising results. Highlights Developing a knowledge-based framework to assist the designer in design decisions. Opitz feature recognition and code generation from STEP for data standardization. An efficient similarity recognition algorithm to retrieve models from database.

Product Modeling, Evaluation and Validation at the Detailed Design Stage

2011 ◽  
Author(s):  
Cristian Iorga ◽  
Alain Desrochers
Keyword(s):  
Product Development ◽  
Design Process ◽  
Design Stage ◽  
Product Modeling ◽  
Specific Product ◽  
Development Processes ◽  
Product Variation ◽  
Process Methodology ◽  
Capstone Projects ◽  
Short Time

The expansion of the markets corroborated with product customization and short time to launch the product have led to new levels of competition among product development companies. To be successful in the globalization of the markets and to enable the evaluation and validation of products, companies have to develop methodologies focused on lifecycle analysis and reduction of product variation to obtain both quality and robustness of products. Keywords: Modeling, Evaluation, Validation, Design ProcessThis paper proposes a new design process methodology that unifies theoretical results of modeling stage and empirical findings obtained from the validation stage. The evaluations and validations of engineering design are very important and they have a high influence on product performances and their functionality, as well on the customer perceptions.Given that most companies maintain the confidentiality of their product development processes and that the existing literature does not provide more detailed aspects of this field, the proposed methodology will represent a technical and logistical support intended for students or engineers involved in academic as well as industrial projects.A generic methodology will be refined based on a new approach that will take into consideration the specification types (quantitative or qualitative), the design objectives and the product types: new/improved, structural/esthetic. Hence the new generic methodology will be composed of specific product validation algorithms taking into account the above considerations. At the end of this paper, the improvements provided by the proposed methodology into the design process will be shown in the context of the engineering student capstone projects at the Université de Sherbrooke.

scholarly journals The Finnish Product Development Teachers’ Perceptions of their Pedagogical Content Knowledge in Higher Education

2019 ◽  
Vol 1 (1) ◽  
pp. 609-618
Author(s):  
Elina Mäkelä ◽  
Petra Auvinen ◽  
Tero Juuti
Keyword(s):  
Higher Education ◽  
Educational Technology ◽  
Product Development ◽  
Pedagogical Content Knowledge ◽  
Content Knowledge ◽  
Curriculum Design ◽  
Teacher Interviews ◽  
Pedagogical Content ◽  
Teachers Perceptions ◽  
Knowledge Based

AbstractThe paper concerns the Finnish product development teacherś perceptions on their pedagogical content knowledge in higher education settings. The aim is to describe and analyse what kind of pedagogical content knowledge the teachers have and, therefore, to provide a better understanding of the type of knowledge unique to product development teaching. The model of pedagogical content knowledge used here includes the components of product development content knowledge, pedagogical knowledge and pedagogical content knowledge. Based on seven teacher interviews, the main content knowledge concerns the process of product development, its different phases and methods as well as the usage of different software programs. The teachers use diverse teaching methods and their attitude towards educational technology is mostly positive. Course learning outcomes and working life are acknowledged when planning teaching, but only a few teachers take curriculum into account and participate in curriculum design. Even though the teachers use different evaluation methods in teaching, new ways of evaluation are needed. This may be something that innovative educational technology tools can make possible.

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