The Technology of Language and How Advances Will Affect Mechanical Design

1994 ◽  
Author(s):  
David S. Povilus ◽  
Jerome C. Conrad
Keyword(s):  
Design Process ◽  
Mechanical Engineering ◽  
Mechanical Design

Abstract The Importance of Language To Mechanical Design Increasingly, an information-centric view of the design process is being offered as the key to improvements in mechanical engineering. In such views, the focus on the importance, requirements, and problems of language is clear.

Measuring performance change in the mechanical design process arena

2005 ◽  
Vol 219 (12) ◽  
pp. 851-863 ◽  
Author(s):  
I Egan ◽  
J. M. Ritchie ◽  
P. D. Gardiner
Keyword(s):  
Design Process ◽  
Systems Engineering ◽  
Mechanical Engineering ◽  
Mechanical Design ◽  
Building Blocks ◽  
Maturity Model ◽  
Capability Maturity ◽  
Process Measurement ◽  
Design Function ◽  
Engineering Institute

Measurement of the design process is an issue facing business and academic practitioners alike. This paper outlines an approach used to formalize design process measurement within a large electromechanical original equipment manufacturer (OEM) by applying a derivation of the Carnegie-Mellon/Software Engineering Institute systems engineering capability maturity model(R) (SE-CMM(R)), entitled the process capability model-mechanical design (PCM-MD). This new model was created using a similar structure and format of questions as the SE-CMM(R), with modifications to suit mechanical engineering terminology. This was then applied to the mechanical engineering design department of the partner company where it was successfully piloted and then reapplied to produce a picture of how the effectiveness or otherwise of the processes associated with their multidisciplinary mechanical design function altered over time. This work provided the building blocks for further detailed studies to be carried out at other sites in the same company and within the mechanical engineering departments of other firms.

The design of modular oil tank: A new design process model

2020 ◽  
Vol 15 ◽  
Author(s):  
Jin Li ◽  
Xingsheng Jiang ◽  
Jingye Li ◽  
Yadong Zhao ◽  
Xuexing Li
Keyword(s):  
Product Design ◽  
Design Process ◽  
Process Model ◽  
Mechanical Design ◽  
Computer Software ◽  
Reference Value ◽  
Fuel Tank ◽  
Design Quality ◽  
Design Time ◽  
Design Process Model

Background: In the whole design process of modular fuel tank, there are some unreasonable phenomena. As a result, there are some defects in the design of modular fuel tank, and the function does not meet the requirements in advance. This paper studies this problem. Objective: Through on-the-spot investigation of the factory, a mechanical design process model is designed. The model can provide reference for product design participants on product design time and design quality, and can effectively solve the problem of low product design quality caused by unreasonable product design time arrangement. Methods: After sorting out the data from the factory investigation, computer software is used to program, simulate the information input of mechanical design process, and the final reference value is got. Results: This mechanical design process model is used to guide the design and production of a new project, nearly 3 months ahead of the original project completion time. Conclusion: This mechanical design process model can effectively guide the product design process, which is of great significance to the whole mechanical design field.

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.

An Extensible Computer Environment for Modeling and Analysis in Mechanical Design

1991 ◽  
Author(s):  
T. A. Mashburn ◽  
D. C. Anderson
Keyword(s):  
Design Process ◽  
Mechanical Design ◽  
Modeling And Analysis ◽  
Computer Environment ◽  
And Behavior ◽  
Generic Component

Abstract This paper investigates a computer environment approach for the exploration of design behavior in the mechanical design process. Generic component types and behavior modelers are developed based on the needs of mechanical designers and are represented in a computer environment. Built-in component types and physical behaviors are also developed. Extension can then occur as needed during design refinement. The resulting system can support exploration and knowledge refinement during design.

The Roles of Features and Abstraction in Mechanical Design

1994 ◽  
Author(s):  
LeRoy E. Taylor ◽  
Mark R. Henderson
Keyword(s):  
Life Cycle ◽  
Engineering Design ◽  
Design Process ◽  
Design Research ◽  
Mechanical Design ◽  
Product Modeling ◽  
Product Models ◽  
Mechanical Products ◽  
Unique Framework ◽  
The Relationship

Abstract This paper describes the roles of features and abstraction mechanisms in the mechanical design process, mechanical designs, and product models of mechanical designs. It also describes the relationship between functions and features in mechanical design. It is our experience that many research efforts exist in the areas of design and product modeling and, further, that these efforts must be cataloged and compared. To this end, this paper culminates with the presentation of a multi-dimensional abstraction space which provides a unique framework for (a) comparing mechanical engineering design research efforts, (b) relating conceptual objects used in the life cycle of mechanical products, and (c) defining a product modeling space.

Identification of Modal Parameters of an Elastic Rotor With Oil Film Bearings

1984 ◽  
Vol 106 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Rainer Nordmann
Keyword(s):  
Modal Analysis ◽  
Dynamic Behavior ◽  
Design Process ◽  
Mechanical Engineering ◽  
Mechanical Systems ◽  
Rotating Machinery ◽  
Modal Parameters ◽  
Powerful Method ◽  
Oil Film ◽  
Engineering Problems

Investigations of the dynamic behavior of structures have become increasingly important in the design process of mechanical systems. To have a better understanding of the dynamic behavior of a structure, the knowledge of the modal parameters is very important. The powerful method of experimental modal analysis has been used to measure modal parameters in many mechanical engineering problems. But the method was mainly applied to nonrotating structures. This presentation shows improvements of the classical modal analysis for a successful application in rotating machinery with nonconservative effects. An example is given, investigating the modal parameters of an elastic rotor with oil film bearings.

Topology Optimization in the Conceptual Design: Take the Frame of a Bender as Example

2011 ◽  
Vol 267 ◽  
pp. 297-301
Author(s):  
Yong Wang ◽  
Guo Niu Zhu ◽  
Bo Yu Sun
Keyword(s):  
Topology Optimization ◽  
Design Process ◽  
Mechanical Design ◽  
Cost Effective ◽  
Optimization Techniques ◽  
Structural Topology Optimization ◽  
Structural Topology ◽  
Effective Manner ◽  
Stress And Deformation ◽  
Design Proposal

The paper is concerned with topology optimization in the mechanical design process. The disadvantage of current process of mechanical design is discussed and a new design process based on structural topology optimization is presented. The design process with structural topology optimization in mechanical design is discussed by the example of the frame of a bender. Static analysis is made to the original model first according to the whole structure and working characteristic of the machine, the stress and deformation distribution are obtained and then topology optimization is carried out. On the basis of topology optimization, the layout of the initial design proposal is obtained and the weight of the frame is substantially reduced while the performance enhanced. The application of the method demonstrates that through innovative utilization of the topology optimization techniques, the conceptual proposals can be obtained and the overall mechanical design process can be improved substantially in a cost effective manner.

scholarly journals Providing a Uniform Design Experience in an Undergraduate Mechanical Engineering Program

2021 ◽  
Author(s):  
Filippo A. Salustri ◽  
W. Patrick Neumann
Keyword(s):  
Design Process ◽  
Mechanical Engineering ◽  
Uniform Design ◽  
Design Engineering ◽  
Specific Design ◽  
Design Work ◽  
Design Project ◽  
Engineering Program ◽  
Design Projects ◽  
Design Experience

The design experience of 3rd year undergraduates in Mechanical Engineering at Ryerson University, and the assessment of student design work, was found to be disjointed and highly variable across the program. To attempt to address this, the authors are constructing courseware to help instructors of non-design engineering courses embed rich and consistent design projects into their courses. A “lightweight” Fast-Design process was developed. Course-specific design project examples of the process are being developed for five 3rd year courses using this design process. Current versions of all courseware are freely available. This paper details the nature of the courseware and how it was designed, developed,and deployed for the project. To date, one case has been deployed, two developed, and two more are under development. While results are so far only anecdotal, there is reason to believe that our approach can noticeably improve the design experience of students in non-design engineering courses.

Providing a uniform design experience in an undergraduate Mechanical Engineering Program

2021 ◽  
Author(s):  
Filippo A. Salustri ◽  
W. Patrick Neumann
Keyword(s):  
Design Process ◽  
Mechanical Engineering ◽  
Uniform Design ◽  
Design Engineering ◽  
Specific Design ◽  
Design Work ◽  
Design Project ◽  
Engineering Program ◽  
Design Projects ◽  
Design Experience

The design experience of 3rd year undergraduates in Mechanical Engineering at Ryerson University, and the assessment of student design work, was found to be disjointed and highly variable across the program. To attempt to address this, the authors are constructing courseware to help instructors of non-design engineering courses embed rich and consistent design projects into their courses. A “lightweight” Fast-Design process was developed. Course - specific design project examples of the process are being developed for five 3rd year courses using this design process. Current versions of all courseware are freely available. This paper details the nature of the courseware and how it was designed, developed, and deployed for the project. To date, one case has been deployed, two developed, and two more are under development. While results are so far only anecdotal, there is reason to believe that our approach can noticeably improve the design experience of students in non-design engineering courses.

The IFBMDA: A Model for Mechanical Design Automation

1992 ◽  
Author(s):  
Dongming Lu ◽  
Shouqian Sun ◽  
Zhijun He
Keyword(s):  
Design Process ◽  
Information Flow ◽  
Design Automation ◽  
Flow Model ◽  
Mechanical Design ◽  
Cognitive Model ◽  
Knowledge Processing ◽  
Constraint Generation ◽  
Process Stage ◽  
Information Flow Model

Abstract The IFBMDA is an Information-Flow-Based model for Mechanical Design Automation. This paper first analyzes the mechanical design process from the views of design methodology and cognitive model. Then, two essential assumptions about mechanical design behavior are provided. Based on the analysis and fundamental assumptions, this paper thoroughly describes five submodels which constitute the automation model IFBMDA. They are Information Flow model, Knowledge Processing model, Non-monotonic Expansion Search model, Iterative Constraint Generation and Solution model and Design Process Stage model. Then, this paper also evaluates the model in both practical and theoretical aspects and shows that it is well-developed in both aspects. Finally, the perspective of further mechanical design automation research is outlined.

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