Advanced Engineering Design
01 Jan 2012-
About: The article was published on 2012-01-01. It has received 48 citations till now. The article focuses on the topics: Electrical engineering technology & System of systems engineering.
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01 Jan 2019
TL;DR: Different food-related preparation tasks that are inherently complex are presented: cooking a turkey, baking an apple pie, reverse-engineering a recipe, and designing ecologically-minded food packaging while also discussing the impact of prepared food’s packaging approaches on the environment.
Abstract: Axiomatic Design and Complexity Theory are often applied to highly complex and technological systems that provide educators with many engineering examples and case studies. The use of Axiomatic Design is applicable outside of these areas. However, there are not many examples outside of these areas. As a result, students often have trouble understanding the breadth and impact of Axiomatic Design’s application to problem-solving. One large complex system that is often overlooked is that of the kitchen. In this chapter, we present different food-related preparation tasks that are inherently complex: cooking a turkey, baking an apple pie, reverse engineering a recipe, and designing ecologically minded food packaging while also discussing the impact of prepared food’s packaging approaches on the environment. The authors believe such examples demonstrate Axiomatic Design’s applicability in a new aspect that is approachable to a wide audience.
TL;DR: In this article, the authors apply general engineering rules for describing the reliability of devices working under variable stresses, and propose a reliability model with as many explanatory variables as necessary but only three unknown parameters, which allows the engineer to collect reliability data from different tests campaigns, and to extrapolate reliability results towards other operational and design points.
Abstract: This article applies general engineering rules for describing the reliability of devices working under variable stresses. The approach is based on imposing completeness and physicality. Completeness refers to the model's capability for studying as many stated conditions as possible, and physicality refers to the model's capability for incorporating explanatory variables specified and related each other by the physical laws. The proposed reliability model has as many explanatory variables as necessary but only three unknown parameters, and hence, it allows the engineer to collect reliability data from different tests campaigns, and to extrapolate reliability results towards other operational and design points.
01 Apr 2016
TL;DR: In this article, surface defects (metalworking) in stainless steel implantable prostheses and their possible relation to infections that can be generated after surgery was studied, considering the fact that a substantial number of Mucormycetes infections have been reported after arthroscopic surgery.
Abstract: In the first phase of this work, surface defects (metalworking) in stainless steel implantable prostheses and their possible relation to infections that can be generated after surgery was studied. In a second phase, the results obtained in the aforementioned stage were applied to knee cruciate ligaments surgery screws, considering the fact that a substantial number of Mucormycetes infections have been reported after arthroscopic surgery in Argentina since the year 2005. Two types of screws, transverse and interference screws, were analyzed. The Allen heads presented defects such as burrs and metalworking bending as a result of the machining process. These defects allow the accumulation of machining oil, which could be contaminated with fungal spores. When this is the case, the gaseous sterilization by ethylene oxide may be jeopardized. Cortical screws were also analyzed and were found to present serious metalworking defects inside their heads. To reduce the risk of infection in surgery, the use of screws with metalworking defects on the outer surface, analyzed with stereomicroscope and considering the inside part of the Allen as an outer surface, should be avoided altogether.