Information Modeling of Conceptual Design Integrated With Process Planning

2000 ◽  
Author(s):  
Shaw C. Feng ◽  
Eugene Y. Song
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Process Planning ◽  
Model Development ◽  
Basic Structure ◽  
Information Modeling ◽  
Manufacturing Cost ◽  
Object Model ◽  
Activity Model ◽  
Model Sets

Abstract Information modeling is critical to the integration of conceptual design and process planning. An information model for conceptual design is provided in this paper. Conceptual design is a key activity in early product development. It determines product functions, form, and the basic structure. Major manufacturing cost is committed in early conceptual design process. The model presented in this paper includes an activity model for the conceptual design process and an object model for classes used in conceptual design. The activity model sets the context in which the objects are defined and used. The object model describes the data and functions used in conceptual design and integration with process planning. The main purpose of the model development is to initiate standard interface specifications that are necessary for design and process planning integration.

Information Modeling of Conceptual Process Planning Integrated With Conceptual Design

2000 ◽  
Author(s):  
Shaw C. Feng ◽  
Eugene Y. Song
Keyword(s):  
Process Planning ◽  
Computer Aided Design ◽  
Information Modeling ◽  
Current Status ◽  
Manufacturing Cost ◽  
Object Model ◽  
Activity Model ◽  
Computer Aided Process Planning ◽  
Model Sets ◽  
Computer Aided

Abstract Conceptual process planning is a key activity for designers to evaluate manufacturability and manufacturing cost and time in the early product development stage. Since major manufacturing cost is determined in early design, it is critical to be able to assess manufacturability and cost as early as possible in the design process. The integration between process planning and design is critical to enable these analyses. A literature review of the current status of Computer-Aided Design (CAD) and Computer-Aided Process Planning (CAPP) software technologies reveals the lack of interface standards to enable the integration of these systems. In order to develop interface standards, information models have to be first developed to define the interfaces. An initial information model for conceptual process planning has been developed. This model includes an activity model and an object model for manufacturing process selection, resource selection, and cost and time estimation. The activity model sets the context in which the objects are used for information sharing and exchange. The object model defines classes used in conceptual process planning. The main purpose of developing this model is to initiate the development of standard interface specifications that are necessary for design and process planning integration.

Information Modeling Design in Product Development

2010 ◽  
Vol 26-28 ◽  
pp. 839-842
Author(s):  
Mei Hua Xu ◽  
Dong Yuan Cao
Keyword(s):  
Product Development ◽  
Process Design ◽  
Process Development ◽  
Model Development ◽  
Basic Structure ◽  
Information Modeling ◽  
Activity Model ◽  
Model Sets ◽  
Product Function ◽  
Standard Interface

Information modeling design is the key of product development. An information modeling is discussed in this paper. It determines product function, form and basic structure. Major cost is spent in early product development. The model presented in this paper includes activity model for the process design. The activity model sets the context in which the objects are defined and used. The main purpose of the model development is to initiate standard interface specifications that are necessary for design and process development. The design information that is necessary for conceptual process planning has been collected and modeled using UML.

Activity model for homogenization of data sets in laser-based powder bed fusion

2017 ◽  
Vol 23 (1) ◽  
pp. 137-148 ◽  
Author(s):  
Shaw C. Feng ◽  
Paul Witherell ◽  
Gaurav Ameta ◽  
Duck Bong Kim
Keyword(s):  
Design Process ◽  
Process Planning ◽  
Reference Model ◽  
Information Modeling ◽  
Powder Bed Fusion ◽  
Process Data ◽  
Activity Data ◽  
Activity Model ◽  
Content Type ◽  
Powder Bed

Purpose Additive manufacturing (AM) processes are the integration of many different science and engineering-related disciplines, such as material metrology, design, process planning, in-situ and off-line measurements and controls. Major integration challenges arise because of the increasing complexity of AM systems and a lack of support among vendors for interoperability. The result is that data cannot be readily shared among the components of that system. In an attempt to better homogenization this data, this paper aims to provide a reference model for data sharing of the activities to be under-taken in the AM process, laser-based powder bed fusion (PBF). Design/methodology/approach The activity model identifies requirements for developing a process data model. The authors’ approach begins by formally decomposing the PBF processes using an activity-modeling methodology. The resulting activity model is a means to structure process-related PBF data and align that data with specific PBF sub-processes. Findings This model in this paper provides the means to understand the organization of process activities and sub-activities and the flows among them in AM PBF processes. Research limitations/implications The model is for modeling AM activities and data associated with these activity. Data modeling is not included in this work. Social implications After modeling the selected PBF process and its sub-processes as activities, the authors discuss requirements for developing the development of more advanced process data models. Such models will provide a common terminology and new process knowledge that improve data management from various stages in AM. Originality/value Fundamental challenges in sharing/reusing data among heterogeneous systems include the lack of common data structures, vocabulary management systems and data interoperability methods. In this paper, the authors investigate these challenges specifically as they relate to process information for PBF – how it is captured, represented, stored and accessed. To do this, they focus on using methodical, information-modeling techniques in the context of design, process planning, fabrication, inspection and quality control.

Conceptual Process Planning: A Definition and Functional Decomposition

1999 ◽  
Author(s):  
Shaw C. Feng ◽  
Y. Zhang
Keyword(s):  
Conceptual Design ◽  
Process Planning ◽  
Development Stage ◽  
Design Stage ◽  
Design System ◽  
Prototype System ◽  
Manufacturing Cost ◽  
Activity Model ◽  
Early Design Stage ◽  
Definition Of

Abstract Conceptual process planning is an activity for designers to evaluate manufacturability and the manufacturing cost in the early design stage for mechanical parts production. Since major manufacturing costs of a product are committed in product specification and design, it is critical to be able to assess manufacturability and cost as early as possible in the design process. At the National Institute of Standards and Technology, the Design and Process Planning Integration (DPPI) project addresses the need for improving communication between conceptual design and conceptual process planning activities. Documenting the DPPI foundation, this paper provides a definition of conceptual process planning and describes its functions in an activity model. Also, this paper describes the conceptual process planning prototype system that has been implemented and integrated with a conceptual design system. The prototype system validates the definition, the activity model, and the integration between process planning and design in the early product development stage.

Behavior-Form Double Directions Creative Conceptual Design Model and Its Quotient Space Implementation

2008 ◽  
Author(s):  
Yu-Xin Wang ◽  
Yu-Tong Li ◽  
Jian-Wei Wang
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Quotient Space ◽  
Basic Structure ◽  
Basic Operation ◽  
Decomposition Tree ◽  
Function Decomposition ◽  
Design Variables ◽  
Set Up

This paper presents a novel indirect matching approach between the function layer and the form layer to enhance the capability for the FBS method to obtain the creative conceptual design results. Firstly, the basic operation actions set, which is composed of the basic operation actions obtained by decomposing each function in the lowest level of the function decomposition tree in the FBS model into the sub-functions, in the function layer is regrouped dynamically. This behavior regroup process has introduced the new design variables into the conceptual design process and leads the behavior creativity to produce. On the other hand, considering the multi-functions for each basic structure to have and representing these functions with the basic operation actions, then the basic operation actions set in the form layer is set up. Dynamic regrouping this set in the form layer, the new design variables has been introduced into the conceptual design process, and leads the form creativity to produce. Through the above behavior-form double directions creative process, the solution scope of the conceptual design is enlarged obviously. Therefore, the method present in this paper has enough capability to obtain the creative conceptual results. Furthermore, the model presented in this paper is represented with the quotient space mathematically. The case study has shown that in the function layer, through adjusting the attribute function, which determines the partition grain of the basic operation actions set in the function layer or in the form layer, the new behaviors can be generated.

Information Modeling for Integrated Product Design, Process Planning and System Design for Powertrain Machining

2003 ◽  
Author(s):  
Jianming Li ◽  
Samba Subramanian ◽  
Steve Swisher ◽  
Derek Yip-Hoi
Keyword(s):  
Product Development ◽  
System Design ◽  
Product Design ◽  
Design Process ◽  
Process Planning ◽  
Information Modeling ◽  
Information Models ◽  
Development Teams ◽  
Extensible Markup ◽  
Product Design Process

To shorten product development lifecycles for machined powertrain components, it is necessary to develop technologies around integrated product design, process planning and system design. This integration should enable information once created to be readily available across all activities of the lifecycle. A key to achieving this is the creation of an information model for capturing and relating this information. This model should be comprehensive and easily navigable to enable, for instance, manufacturing engineers to trace tasks on the stations in a machining line to specific surfaces on in-process states of the workpiece. Also of importance are strategies that specify how instances of this model are created and how it is to be maintained. This paper presents information models created specifically for powertrain machining. These models have been implemented as a database within a framework for integrated product design, process planning and system design. An XML (eXtensible Markup Language) application based on the model has also been developed to standardize interfaces and facilitate communication within product development teams and with suppliers.

scholarly journals Conceptual Design of Electromechanical Actuation Systems for Large-Sized Directional Control Valves

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 133
Author(s):  
Tobias Vonderbank ◽  
Katharina Schmitz
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Operating Conditions ◽  
Function Structure ◽  
Advantages And Disadvantages ◽  
Conceptual Designs ◽  
Actuation Systems ◽  
Electromechanical Actuation ◽  
Function Structures ◽  
Valve Actuation

Increasing performance in modern hydraulics is achieved by a close investigation of possible enhancements of its components. Prior research has pointed out that electromechanical actuators can form suitable alternatives to hydraulically piloted control systems. Since the requirements at these actuation systems depend on the operating conditions of the system, each actuator can be optimized to the respective hydraulic system. Considering that many different conceptual designs are suitable, the phase of conceptual design plays a decisive role during the design process. Therefore, this paper focuses on the process of developing new conceptual designs for electromechanical valve actuation systems using the method of function structures. Aiming to identify special design features, which need to be considered during the design process of electromechanical actuation systems, an exemplary actuator was designed based on the derived function structure. To highlight the potential of function structures for the development of new electromechanical valve actuation systems, two principal concepts, which allow the reduction of the necessary forces, have been developed by extending the function structure. These concepts have been experimentally investigated to identify their advantages and disadvantages.

scholarly journals Explicating concepts in reasoning from function to form by two-step innovative abductions

2016 ◽  
Vol 30 (2) ◽  
pp. 125-137 ◽  
Author(s):  
Ehud Kroll ◽  
Lauri Koskela
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Abductive Reasoning ◽  
Parameter Analysis ◽  
Critical Examination ◽  
Functional Aspect ◽  
Specific Design ◽  
Design Processes ◽  
Step Process ◽  
Design Reasoning

AbstractThe mechanism of design reasoning from function to form is suggested to consist of a two-step inference of the innovative abduction type. First is an inference from a desired functional aspect to an idea, concept, or solution principle to satisfy the function. This is followed by a second innovative abduction, from the latest concept to form, structure, or mechanism. The intermediate entity in the logical reasoning, the concept, is thus made explicit, which is significant in following and understanding a specific design process, for educating designers, and to build a logic-based computational model of design. The idea of a two-step abductive reasoning process is developed from the critical examination of several propositions made by others. We use the notion of innovative abduction in design, as opposed to such abduction where the question is about selecting among known alternatives, and we adopt a previously proposed two-step process of abductive reasoning. However, our model is different in that the two abductions used follow the syllogistic pattern of innovative abduction. In addition to using a schematic example from the literature to demonstrate our derivation, we apply the model to an existing, empirically derived method of conceptual design called “parameter analysis” and use two examples of real design processes. The two synthetic steps of the method are shown to follow the proposed double innovative abduction scheme, and the design processes are presented as sequences of double abductions from function to concept and from concept to form, with a subsequent deductive evaluation step.

A model of the mechanical design process based on empirical data

1988 ◽  
Vol 2 (1) ◽  
pp. 33-52 ◽  
Author(s):  
David G. Ullman ◽  
Thomas G. Dietterich ◽  
Larry A. Stauffer
Keyword(s):  
Problem Solving ◽  
Detailed Analysis ◽  
Conceptual Design ◽  
Design Process ◽  
Empirical Data ◽  
Mechanical Design ◽  
Level Of Detail ◽  
Cad Tools ◽  
Design Alternatives ◽  
Key Features

This paper describes the task/episode accumulation model (TEA model) of non-routine mechanical design, which was developed after detailed analysis of the audio and video protocols of five mechanical designers. The model is able to explain the behavior of designers at a much finer level of detail than previous models. The key features of the model are (a) the design is constructed by incrementally refining and patching an initial conceptual design, (b) design alternatives are not considered outside the boundaries of design episodes (which are short stretches of problem solving aimed at specific goals), (c) the design process is controlled locally, primarily at the level of individual episodes. Among the implications of the model are the following: (a) CAD tools should be extended to represent the state of the design at more abstract levels, (b) CAD tools should help the designer manage constraints, and (c) CAD tools should be designed to give cognitive support to the designer.

A part affordance–based approach for detailed design process planning in collaborative environment

2014 ◽  
Vol 22 (4) ◽  
pp. 291-308
Author(s):  
Jian Huang ◽  
Yong Chen ◽  
Zhinan Zhang ◽  
Youbai Xie
Keyword(s):  
Design Process ◽  
Process Planning ◽  
Detailed Design ◽  
Collaborative Environment
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