Application of CFD in ship engineering design practice and ship hydrodynamics

2006 ◽  
Vol 18 (3) ◽  
pp. 315-322 ◽  
Author(s):  
Zhi-rong ZHANG ◽  
Hui LIU ◽  
Song-ping ZHU ◽  
Feng ZHAO
Keyword(s):  
Engineering Design ◽  
Design Practice ◽  
Ship Hydrodynamics ◽  
Ship Engineering

Application of CFD in ship engineering design practice and ship hydrodynamics

2006 ◽  
Vol 18 (S1) ◽  
pp. 308-315 ◽  
Author(s):  
Zhi-rong Zhang ◽  
Hui Liu ◽  
Song-ping Zhu ◽  
Feng Zhao
Keyword(s):  
Engineering Design ◽  
Design Practice ◽  
Ship Hydrodynamics ◽  
Ship Engineering

Social Failure Modes in Technology and the Ethics of AI

2020 ◽  
pp. 441-461
Author(s):  
Jason Millar
Keyword(s):  
Engineering Design ◽  
Failure Modes ◽  
Design Practice ◽  
Detailed Understanding ◽  
Ethical Implications ◽  
The Social ◽  
Underlying Causes ◽  
Physical Defects ◽  
Definition Of

This chapter argues that, just as technological artefacts can break as a result of mechanical, electrical, or other physical defects not fully accounted for in their design, they can also break as a result of social defects not fully accounted for in their design. These failures resulting from social defects can be called social failures. The chapter then proposes a definition of social failure as well as a taxonomy of social failure modes—the underlying causes that lead to social failures. An explicit and detailed understanding of social failure modes, if properly applied in engineering design practice, could result in a fuller evaluation of the social and ethical implications of technology, either during the upstream design and engineering phases of a product, or after its release. Ideally, studying social failure modes will improve people’s ability to anticipate and reduce the rate or severity of undesirable social failures prior to releasing technology into the wild.

Characterization of Antifragility in Cyber Systems Using a Susceptibility Metric

2016 ◽  
Author(s):  
Erich Devendorf ◽  
Kayla Zeliff ◽  
Kamal Jabbour
Keyword(s):  
Engineering Design ◽  
Impulse Response ◽  
Design Practice ◽  
Reliable Systems ◽  
Robust Systems ◽  
Minimum Performance

Traditional engineering design practice seeks to create reliable systems that maintain a desired minimum performance when subjected to a defined set of impulses. To manage impulses, designers implement techniques to specify systems that are resilient or robust to impulses. Resilient systems perform with degraded capacity when subjected to impulses while robust systems remain unaffected by impulses. In this paper we examine antifragility, a complement to resilience and robustness, to manage the impulse response of complex cyber systems. Where fragile systems fracture when subjected to impulses, antifragile systems become stronger. We discuss why this strengthening characteristic makes antifragility attractive for managing impulse response in complex cyber systems and develop a measure for antifragility that differentiates it from fragility, resiliency and robustness. We then discuss an antifragile cyber system to demonstrate the benefits of antifragility in an impulse-rich environment.

Students’ Perceptions of Humor and Creativity in Project-Organized Groups (pogs) in Engineering Design Education in China

2015 ◽  
Vol 4 (2) ◽  
pp. 162-179 ◽  
Author(s):  
Chunfang Zhou
Keyword(s):  
Engineering Design ◽  
Design Education ◽  
Black Box ◽  
Design Practice ◽  
Communication Tool ◽  
Engineering Design Education ◽  
Project Groups ◽  
Design Students ◽  
Education In China ◽  
Learner’S Perspective

This study explores engineering design students’ perceptions of humor in the experiences of creativity development in Project-Organized Groups (pogs). This study links theories including humor, learning, creativity, and engineering design in one framework. Empirically, this study carried out interviews with a total of 13 students in engineering design education at Northeastern University (neu) in China. We found that students think all humorous people are creative, and they welcome humor in project groups; they also regard humor as not only a personality or communication tool, but also the outcome of applying creative ideas in design practice. The students additionally think that humor is mainly used to keep individuals’ harmonious relationship with the group and that humor is the immediate ability to create using language in ongoing communication contexts. These findings are helpful to unpack the black box of humor from a learner’s perspective and contribute to future joint efforts of studies on humor and creativity in engineering design education.

scholarly journals Development of an AI Userbot for Engineering Design Education Using an Intent and Flow Combined Framework

2020 ◽  
Vol 10 (22) ◽  
pp. 7970
Author(s):  
Yu-Hung Chien ◽  
Chun-Kai Yao
Keyword(s):  
Engineering Design ◽  
System Architecture ◽  
Design Education ◽  
Early Stage ◽  
Design Practice ◽  
Structured Interviews ◽  
Engineering Design Education ◽  
Design Activities ◽  
Design Projects ◽  
Virtual Product

As the inclusion of users in the design process receives greater attention, designers need to not only understand users, but also further cooperate with them. Therefore, engineering design education should also follow this trend, in order to enhance students’ ability to communicate and cooperate with users in the design practice. However, it is difficult to find users on teaching sites to cooperate with students because of time and budgetary constraints. With the development of artificial intelligence (AI) technology in recent years, chatbots may be the solution to finding specific users to participate in teaching. This study used Dialogflow and Google Assistant to build a system architecture, and applied methods of persona and semi-structured interviews to develop AI virtual product users. The system has a compound dialog mode (combining intent- and flow-based dialog modes), with which multiple chatbots can cooperate with students in the form of oral dialog. After four college students interacted with AI userbots, it was proven that this system can effectively participate in student design activities in the early stage of design. In the future, more AI userbots could be developed based on this system, according to different engineering design projects for engineering design teaching.

Development of a Design for Manufacturing Rules Database for Use in Instruction of DFM Practices

2014 ◽  
Author(s):  
Keith Phelan ◽  
Crystal Wilson ◽  
Joshua D. Summers
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Design For Manufacturing ◽  
Design Practice ◽  
Design For X ◽  
Database Model ◽  
Engineering Design Process ◽  
Modern Engineering ◽  
Future Work ◽  
Is Design

In recent years, there has been a significant push towards “Design for X” (DFX) in modern engineering design practice. One such category that has received a large amount of attention is design for manufacturing. When conducting design for manufacturing, a common tool to assist in the design process is design for a series of design for manufacturing guidelines. While the use of these guidelines, as well as other DFX guidelines, has been shown to be effective, little research has been done with the intent to standardize the guidelines or make them more readily available. In this paper, the authors propose a Design for Manufacturing database tool to assist in the instruction of design for manufacturing guidelines. The development of the database model is discussed, as well as the interface that is used to interact with the database. The tool is then evaluated and conclusions are made with regards to the effectiveness of the database and any future work to increase the functionality. One major addition that is discussed is the adaptation of the database for use in industry, and not just in education, to assist in the engineering design process.

Assessment of Spent Fuel of Alfa Class Nuclear Submarines

2002 ◽  
Vol 713 ◽  
Author(s):  
M.I. Bugreev ◽  
E.I. Efimov ◽  
S.V. Ignatiev ◽  
D.V. Pankratov ◽  
V.I. Tchitaykin
Keyword(s):  
Liquid Metal ◽  
Engineering Design ◽  
Nuclear Reactor ◽  
Nuclear Safety ◽  
Heavy Liquid ◽  
Primary Circuit ◽  
Spent Fuel ◽  
Ship Engineering

ABSTRACTAt present spent nuclear cores from Alfa class submarines are being stored in temporary facilities, designed to sore them only for a few years (3 to 5 years). This paper assesses the problems of nuclear safety during long-term unplanned forced storage of spent fuel because of the delay in building permanent facilities. The Nuclear Submarines (NS) cores use heavy liquid metal lead-bismuth coolant in the primary circuit of nuclear reactor. The radiation parameters of the discharged cores from NS of the Project 705K (this is the number of ship engineering design) are determined. Based on that determination a step-by-step solution is proposed and the technological and other challenges that the Project faces are considered.

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