An Extension of Design for Assembly Methods for Large and Heavy Parts

1992 ◽  
Author(s):  
John W. Wong ◽  
Robert H. Sturges
Keyword(s):  
Design For Assembly ◽  
Traditional Design ◽  
Operator Fatigue ◽  
Experimental Plan ◽  
Assembly Performance ◽  
Performance Adaptation

Abstract Traditional Design for Assembly methods are limited to part sizes between a few millimeters to a few tens of centimeters in overall size and to part weights under a few kilograms. Parts in the range of a meter in overall size and weighing a few tens of kilograms are examined in this paper. An experimental plan separates weight, mass and inertia and correlates these properties with assembly difficulty and time. When windage, part flexibility and operator fatigue are absent, a set of three parameters serve to model these effects on human assembly performance. Adaptation of this result is made to extend a Design for Assembly methodology.

Design for Assembly Factors for Large and Heavy Parts

1994 ◽  
Vol 116 (2) ◽  
pp. 508-510 ◽  
Author(s):  
J. H. Wong ◽  
R. H. Sturges
Keyword(s):  
Design For Assembly ◽  
Traditional Design ◽  
Assembly Factors ◽  
Operator Fatigue ◽  
Experimental Plan ◽  
Assembly Performance ◽  
Performance Adaptation

Traditional Design for Assembly methods are limited to part sizes between a few millimeters to a few tens of centimeters in overall size and to part weights under a few kilograms. Parts in the range of a meter in overall size and weighing a few tens of kilograms are examined in this paper. An experimental plan separates weight, mass, and inertia and correlates these properties with assembly difficulty and time. When windage, part flexibility, and operator fatigue are absent, a set of three parameters serve to model these effects on human assembly performance. Adaptation of this result is made to extend a Design for Assembly methodology.

Application Of BIM-Technology In The Restoration Of Buildings

2020 ◽  
pp. 42-48
Keyword(s):  
Chinese Communist Party ◽  
Laser Scanning ◽  
High Accuracy ◽  
Information Environment ◽  
Information Modeling ◽  
Structural Scheme ◽  
Traditional Design ◽  
Information Interaction ◽  
Heritage Buildings ◽  
Effective Organization

The paper describes the main trends in the development of BIM technologies in the field of restoration and reconstruction of historical and cultural heritage buildings. The practical part of the paper presents the experience in using information modeling technologies when restoring the building, where the VI Congress of the Chinese Communist Party in Moscow took place. The use of laser scanning technologies made it possible to reproduce with high accuracy in the information model the original appearance of the building using Autodesk RevitR software. It is shown, how the use of information modeling technologies affects the duration of restoration process, taking into account the calculation of the structural scheme and bearing structures of the building, ensuring the identity of the decoration and the effective organization of electromechanical installation. Operating in a single BIM information environment makes it possible to continuously obtain reliable information on the project, which provides more effective information interaction and communication of participants compared to using traditional design methods.

Design and Analysis for Quantitative Research in Music Education

2018 ◽  
Author(s):  
Peter Miksza ◽  
Kenneth Elpus
Keyword(s):  
Education Research ◽  
Data Analysis ◽  
Music Education ◽  
General Education ◽  
Research Design ◽  
Quantitative Research ◽  
Traditional Design ◽  
Design Type ◽  
To Come ◽  
Analytical Approaches

This book is an introduction to quantitative research design and data analysis presented in the context of music education scholarship. The book aims for readers to come away with a familiarity of prototypical research design possibilities as well as a fundamental understanding of data analysis techniques necessary for carrying out scientific inquiry. The book includes examples that demonstrate how the methodological and statistical concepts presented throughout can be applied to pertinent issues in music education. For the majority of Part I, the strategy is to present traditional design categories side by side with explanations of general analytical approaches for dealing with data yielded from each respective design type. Part II consists of chapters devoted to methodological and analytical approaches that have become common in related fields (e.g., psychology, sociology, general education research, educational policy) but are as yet not frequently exploited by music education researchers. Ultimately, this work is motivated by a desire to help scholars acquire the means to actualize their research curiosities and to contribute to the advancement of rigor in music education research throughout the profession at large.

Experimental plan for tests with pea

2020 ◽  
Author(s):  
Francieli de Lima Tartaglia ◽  
Alessandro Dal'Col Lúcio ◽  
Maria Inês Diel ◽  
André Luís Tischler ◽  
Dionatan Ketzer Krysczun ◽  
...  
Keyword(s):  
Experimental Plan

scholarly journals Workplace Adaptive Technologies for Working Adults With Cognitive and Physical Disabilities

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 861-861
Author(s):  
Patricia Heyn
Keyword(s):  
Physical Disabilities ◽  
Cognitive Impairments ◽  
Work Productivity ◽  
Mobile Technologies ◽  
Individuals With Disabilities ◽  
Technology System ◽  
Working Adults ◽  
Assembly Performance ◽  
Adaptive Technologies ◽  
Assembly Tasks

Abstract Individuals with disabilities usually have difficulty in finding and maintaining employment prospects and thus, they are extremely underrepresented in the workforce. These challenges are even greater when the person has both cognitive and physical disabilities. While there is evidence supporting the benefits of employing individuals with disabilities in the workforce, employers are usually unprepared to hire individuals with disabilities. They are also concerned that the work productivity may be impacted by the employee with a disability. Thus, technology can play an important role in helping a person with cognitive and /or physical impairment work on tasks that require memorization and assembly performance. We will present a mobile technology system that was planned and piloted with working adults with physical and cognitive impairments. Founded on our pilot study, mobile technologies hold the potential to help people with disabilities to perform jobs that require memorization as well as systematic assembly tasks.

scholarly journals CONCEPTUAL DESIGN FOR ASSEMBLY IN AEROSPACE INDUSTRY: SENSITIVITY ANALYSIS OF MATHEMATICAL FRAMEWORK AND DESIGN PARAMETERS

2021 ◽  
Vol 1 ◽  
pp. 731-740
Author(s):  
Giovanni Formentini ◽  
Claudio Favi ◽  
Claude Cuiller ◽  
Pierre-Eric Dereux ◽  
Francois Bouissiere ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Conceptual Design ◽  
Design Parameters ◽  
Design For Assembly ◽  
Mathematical Framework ◽  
Commercial Aircraft ◽  
System Architectures ◽  
Complex Engineering ◽  
Aircraft System ◽  
Definition Of

AbstractOne of the most challenging activity in the engineering design process is the definition of a framework (model and parameters) for the characterization of specific processes such as installation and assembly. Aircraft system architectures are complex structures used to understand relation among elements (modules) inside an aircraft and its evaluation is one of the first activity since the conceptual design. The assessment of aircraft architectures, from the assembly perspective, requires parameter identification as well as the definition of the overall analysis framework (i.e., mathematical models, equations).The paper aims at the analysis of a mathematical framework (structure, equations and parameters) developed to assess the fit for assembly performances of aircraft system architectures by the mean of sensitivity analysis (One-Factor-At-Time method). The sensitivity analysis was performed on a complex engineering framework, i.e. the Conceptual Design for Assembly (CDfA) methodology, which is characterized by level, domains and attributes (parameters). A commercial aircraft cabin system was used as a case study to understand the use of different mathematical operators as well as the way to cluster attributes.

scholarly journals The Case for Addressing Operator Fatigue

2015 ◽  
Vol 10 (1) ◽  
pp. 29-78 ◽  
Author(s):  
Jeanne F. Duffy ◽  
Kirsi-Marja Zitting ◽  
Charles A. Czeisler
Keyword(s):  
Operator Fatigue
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