Online Delivery of Capstone Design Course and Complex Engineering Problem

Author(s):  
Jung Soo Kim
1983 ◽  
Vol 105 (2) ◽  
pp. 151-154 ◽  
Author(s):  
J. T. Betts

The successful application of a mathematical programming algorithm to a complex engineering problem requires a careful interfacing of needs and requirements between the optimization operator and the engineering system. This paper outlines some areas where interface requirements have not been successfully resolved. In order to bridge the frontier between theory and practice, issues are identified which require resolution by both algorithm developers and system engineers.


2011 ◽  
Vol 462-463 ◽  
pp. 955-960
Author(s):  
Xu Fei Wang ◽  
Mamtimin Gheni ◽  
Masanori Kikuchi ◽  
Ju Rong Liu

Three-dimensional finite element method (FEM) is widely used as an effective numerical simulation technique to solve the complex engineering problem. Usually, the more complex engineering problem has more complex structure and shape; the FEM simulation technique is that needs to discrete the structure and shape of the problem by mesh. In addition, the correct generation of mesh is one of the most significant issues that directly affect to the accuracy of the FEM simulation. The hexahedral mesh is better than tetrahedral mesh in solving the complex engineering problem. The common methods of hexahedral automatic mesh generation have been used in some commercial soft already, but its adaptation is not enough to solve for practical applications of the complex engineering problems. A new method of mesh generation technique was proposed by improved waveform mesh generating method, and realized by C++ developing program in Linux OS. The method could generate some effective and smoothly mesh models by quadrilateral element or hexahedron element, and not only generated revolution curve surface meshes, but also generated random meshes according to free functions too. The results shown that the hexahedral mesh models of the complex shapes were generated as the shape function apply to regular mesh side as a waveform constraint.


Author(s):  
Fatin Aliah Phang ◽  
Aznah Nor Anuar ◽  
Azmahani Abdul Aziz ◽  
Khairiyah Mohd Yusof ◽  
Syed Ahmad Helmi Syed Hassan ◽  
...  

2021 ◽  
Vol 17 (4) ◽  
pp. 95
Author(s):  
Che Maznah Mat Isa ◽  
Nik ‘Irfan Aiman Mohammad ◽  
Nor Hayati Saad ◽  
Preece Christopher Nigel

Abstract: Programme outcomes (POs) are the attributes that reflect the student skills expected to be acquired upon graduation. The Engineering Accreditation Council (EAC) under Board of Engineers Malaysia requires 12 POs with complex engineering problems (CEP) and knowledge profiles to be incorporated in engineering programmes. Despite considerable research on outcome-based education (OBE), the OBE implementation with regards to the PO attributes and domains incorporating CEP characteristics are still questionable and vaguely implemented by the programmes. This paper presents two PO attributes related to problem solving and development/design for solution based on the perceptions of 301 engineering students in Malaysia. This paper aims to determine the student’s level of understanding on the PO learning domain and to analyze significant factors contributing to their PO attainment. A quantitative method using a questionnaire survey was adopted targeting a random probability sampling of respondents. Descriptive (percentage frequency, relative importance index) and statistical analyses (reliability, normality, correlation) were used to analyze the data. The findings show that the students perceived both POs as cognitive domains and they believed that lecturer’s roles in facilitating students on the subject matter has contributed significantly to their PO attainment. This study is limited to an engineering programme from one institution of higher learning (IHL) in Malaysia. However, the findings provide important insights on the students’ level of understanding of PO attributes and the OBE practices on CEP in the programme. This study can be extended to other IHLs to gauge the students’ understanding related to other PO attributes stipulated by the EAC.   Keywords: Programme Outcomes, Cognitive Domain, Problem Analysis, Design of The Solution, Engineering


Author(s):  
A. Seregin ◽  
I. Nikitina ◽  
S. Krylova

Increasing the rigidity of universal self-centering devices is one of the topical trends in the design of machine tooling. Calculation of the load distribution between the turns and teeth of a spiral rack and pinion mechanism is a complex engineering problem. When working on the article, it was revealed that an adjacent pair of turns and teeth that are in engagement does not always coincide with a geometrical adjacent pair due to the error in the execution of turns and teeth along the pitch and profile. This is based on experimental data and the proposition that errors in the pitch and profile of the spiral determine the nature of the working pressures in the engagement of the turns and teeth. The article discusses technical solutions in which the rigidity of self-centering devices increases without significant structural changes due to the establishment of the correspondence of the algorithm for changing the elastic properties of parts of the spiral-rack mechanism to the algorithm for changing the load between the bearing elements. Constructive solutions based on the implementation of elastic displacement of the first most loaded turn are proposed, which allows to reduce the interference between the tooth of the cam rack and the turn of the disk spiral. This circumstance contributes to the redistribution of the load in the engagement of the bearing elements of the spiral-rack mechanism. The tests of the developed structures were carried out, which gave positive results.


Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1749
Author(s):  
Yee-Meng Chiew ◽  
Jihn-Sung Lai ◽  
Oscar Link

Scour, which represents a fascinating and complex engineering problem involving a number of physical mechanisms and interactions, has motivated a vast amount of research following different but complementary methodological approaches such as experimental, numerical, and field methods. Far from being completely understood, scour remains one of the main hazards for many structures such as bridges, submarine pipelines, offshore wind turbines, etc. Thus, scour is currently a very active field of research with important open questions that are unanswered and practical challenges to be tackled. This Special Issue aims to bridge knowledge gaps by collecting fourteen papers to provide a wide view of scour types and different research approaches, with innovative ideas and inferences.


Author(s):  
Emily M. Hunt ◽  
Pamela Lockwood-Cooke ◽  
Judy Kelley

Problem-Based Learning (PBL) has become an increasingly popular method across disciplines in K-12 and higher education worldwide since it was first introduced to medical education in the late 1960’s. However, it has not gained significant popularity in engineering curricula due to the large time-scale needed to solve complex engineering problems. Previous work by the authors in this area has developed a method for combining problem solving opportunities on a small time scale in linked courses that culminate to solve a challenging problem that would normally take a significant amount of class time. This method of problem-based learning provides a practical application that can be used in engineering curricula. While this method has produced favorable response from both students and faculty involved, there is a need for a more comprehensive effort to develop strategies for evaluation of PBL in mathematics, science and engineering courses, both directly and indirectly. In this study, Engineering Statics, Engineering Physics, and Calculus II are linked using PBL to increase both student engagement and success. For smaller problems, group work with directed individual or interactive tasks is facilitated through teacher-guided discussions. Students who are in these linked (co-enrolled) classes work on small mathematics, physics, and engineering problems that are used to solve a challenging engineering problem. The project addresses concepts taught in class, reinforces connections among the courses, and provides real-world applications. A mixed method evaluation approach was utilized by the external evaluators, the West Texas Office of Evaluation and Research (WTER) including surveys, focus groups, and personal interviews.


2005 ◽  
Vol 22 (3) ◽  
pp. 274-285 ◽  
Author(s):  
Jianjiang Chen ◽  
Yifang Zhong ◽  
Renbin Xiao ◽  
Jianxun Sun

PurposeTo obtain the global optimum of large‐scale complex engineering systems, the paper proposes a decomposition‐coordination method of multidisciplinary design optimization (MDO).Design/methodology/approachA rational decomposition approach based on artificial neural network (ANN) and genetic algorithms is proposed for partitioning the complex design problem into smaller, more tractable subsystems. Once the problem is decomposed into subsystems, each subsystem may be solved in parallel provided that there is some mechanism to coordinate the solutions in the different subsystems. So the response surface approximation model based on the ANN as a coordination method is described and a MDO framework is presented.FindingsThe proposed method was implemented in the design of a tactical missile. Numerical results show the effectiveness of the decomposition‐coordination method, as indicated by both better performance and lower computational requirements.Originality/valueThis paper adopts a novel MDO method to solve complex engineering problem and offers a potential and efficient MDO framework to researchers.


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