Design Theory and Methodology, DTM '94


Book Description

Contains papers from the September 1994 conference, exploring subjects such as quality and tolerance, house of quality, robust and axiomatic design, paradoxes in design, abstractions in mechanical design, complexity and collaborative design, paradigms for design education, and recent design methods










Mechanical Design: Theory and Methodology


Book Description

This volume, Mechanical Design: Theory and Methodology, has been put together over the past four years. Most of the work is ongoing as can be ascertained easily from the text. One can argue that this is so for any text or monograph. Any such book is only a snapshot in time, giving information about the state of knowledge of the authors when the book was compiled. The chapters have been updated and are representative of the state of the art in the field of design theory and methodology. It is barely over a decade that design as an area of study was revived, mostly at the behest of industry, government, and academic leaders. Profes sor Nam Suh, then the head of the Engineering Directorate at the National Science Foundation, provided much of the impetus for the needed effort. The results of early work of researchers, many of whom have authored chapters in this book, were fundamental in conceiving the ideas behind Design for X or DFX and concurrent engineering issues. The artificial intelli gence community had a strong influence in developing the required com puter tools mainly because the field had a history of interdisciplinary work. Psychologists, computer scientists, and engineers worked together to under stand what support tools will improve the design process. While this influ ence continues today, there is an increased awareness that a much broader community needs to be involved.







Knowledge Intensive CAD


Book Description

Knowledge-Intensive CAD clarifies and elaborates the concepts of knowledge-intensive design and CAD. In today's advanced manufacturing environment, CAD systems should not only assist designers and engineers during product design, but also in design information for use in later stages of the process such as production, distribution and operation. This book focuses on the sharing of knowledge across life-cycle stages and organizational boundaries.




Geometric Design Tolerancing: Theories, Standards and Applications


Book Description

The importance of proper geometric dimensioning and tolerancing as a means of expressing the designer's functional intent and controlling the inevitable geometric and dimensional variations of mechanical parts and assemblies, is becoming well recognized. The research efforts and innovations in the field of tolerancing design, the development of supporting tools, techniques and algorithms, and the significant advances in computing software and hardware all have contributed to its recognition as a viable area of serious scholarly contributions. The field of tolerancing design is successfully making the transition to maturity where deeper insights and sound theories are being developed to offer explanations, and reliable implementations are introduced to provide solutions. Machine designers realized very early that manufacturing processes do not produce the nominal dimensions of designed parts. The notion of associating a lower and an upper limit, referred to as tolerances, with each dimen sion was introduced. Tolerances were specified to ensure the proper function of mating features. Fits of mating features included clearances, location fits, and interference fits, with various sub-grades in each category assigned a tolerance value depending on the nominal size of the mating features. During the inspection process, a part is rejected if a dimension fell outside the specified range. As the accuracy requirements in assemblies became tighter, designers had to consider other critical dimensions and allocate tolerances to them in order to ensure the assembly's functionality.




Process Management in Design and Construction


Book Description

To deliver a construction project on time, at cost and of appropriate quality, it is critical to manage the design and construction process effectively... This book provides a comprehensive introduction to the field of process management in design and construction in order to meet the business needs of the construction industry as they change in today’s highly competitive global environment. It identifies the current state of the industry in the process management field, describing trends and developments (including information technology), and demonstrates these through case study evidence. Practical guidance is offered by identifying potential pitfalls, illustrating best practise drawn from construction and appropriate manufacturing applications. The overall approach is a holistic one, based on practical experience gained throughout the past decade both in the academic and industrial environments, including leading a number of research projects on process and IT related topics in construction and manufacturing industries. Process Management in Design and Construction will provide students on construction and project management related courses with a description of the state of process management in design and construction - including current process models – as well as a future vision based on up-to-date research findings and good practice in the construction industry. The book also offers practical guidance to industrial and consultancy organisations on undertaking and implementing process management projects - including re-engineering their customer delivery processes through effective project