• Proceeding of KASS Symposium
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• 2005.05a
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• pp.69-76
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• 2005

This paper deals with a problem about synergy effect in design and engineering. So far a design processing is paralleled to both in Korea, A cooperation between concept design and working plan must be kept up all the way. From three Personally designed footbridges 1 will make clear a total problem for throughout design processing. If we must solve a gaps between technology and art for structural design, we can get an unexpected result. It will be synergy effect between art and technology, design and engineering.

• International Journal of Precision Engineering and Manufacturing
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• v.3 no.2
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• pp.15-21
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• 2002

A control-structure combined optimal design problem is discussed taking a 3-D truss structure as a design object. We use descriptor forms for a controlled object and a generalized plant because the structural parameters appear naturally in these farms. We consider not only minimum weight design problem for structure system, but also suppression problem of the effect of disturbances for control system as the purpose of the design. A numerical example shows the validity of combined optimal design of structure and control systems. We also consider the validity of sensor-actuator collocation for control system design in this paper.

• Journal of Institute of Control, Robotics and Systems
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• v.10 no.2
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• pp.192-196
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• 2004

A combined optimal design problem is discussed taking a 3-D truss structure as a design object. We use descriptor forms for a controlled object and a generalized plant because the structural parameters appear naturally in these forms. We consider not only the minimum weight design problem for the structure, but also the suppression problem of the effect of disturbances for the control system as the purpose of the design. A numerical example shows the validity of combined optimal design of the structure and control systems. We also consider the validity of the sensor-actuator collocation for the control system design in this paper.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.2
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• pp.153-159
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• 2004

A control-structure combined optimal design problem is discussed taking a 3-D truss structure as a design object. We use descriptor forms for a controlled object and a generalized plant because the structural parameters appear naturally in these forms. We consider not only minimum weight design problem for structure system, but also suppression problem of the effect of disturbances for control system as the purpose of the design. By minimizing the linear sum of the normalized structural objective function and control objective function, it is possible to make optimal design by which the balance of the structural weight and the control performance is taken.

• Journal of Korea Society of Digital Industry and Information Management
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• v.13 no.4
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• pp.179-191
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• 2017

The purpose of this study is to investigate the change of comprehension degree about learning satisfaction and capstone class by applying the subject which draws idea for team project task in college to creative capstone design program. The Capstone Design Program is designed to train fieldworkers with creative problem solving skills and is widely applied as a problem-solving course in team-based projects. In this paper, based on the case study of the 'fusion capstone design' operated in the first semester of 2015 ~ 2017, the capstone design course was established in the course of designing ideas for problem solving. The results of this study are as follows: First, the questionnaire about capstone design instruction process, instruction method, and learning achievement satisfaction were analyzed. As a result, understanding of capstone design was found to be higher than that of class before class, and satisfaction of performance course, method of teaching performance and learning outcome were obtained.

• Journal of Power System Engineering
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• v.8 no.1
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• pp.69-74
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• 2004

A structure-control combined optimal design problem is discussed taking a 3-D truss structure as a design object. We use descriptor forms for a controlled object and a generalized plant because the structural parameters appear naturally in these forms. We consider not only minimum weight design problem for structure system, but also suppression problem of the effect of disturbances for control system as the purpose of the design. A numerical example shows the validity of combined optimal design of structure and control systems. We also consider the validity of sensor-actuator collocation for control system design in this paper.

• Transactions of the Korean Society of Automotive Engineers
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• v.12 no.3
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• pp.109-121
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• 2004

This paper presents an optimal design method for structure-borne durability of a vehicle body structure. Structure-borne durability design requires a new design that can increase fatigue lives of critical areas in a structure and must prohibit transition phenomenon of critical areas that results from modification of the structure at the same time. Therefore, the optimization problem fur structure-borne durability design are consists of an objective function and design constraints of 2 types; type 1-constraint that increases fatigue lives of the critical areas to the required design limits and type 2-constraint that prohibits transition phenomenon of critical areas. The durability design problem is generally dynamic because a designer must consider the dynamic behavior such as fatigue analyses according to the structure modification during the optimal design process. This design scheme, however, requires such high computational cost that the design method cannot be applicable. For the purpose of efficiency of the durability design, we presents a method which carry out the equivalent static design problem instead of the dynamic one. In the proposed method, dynamic design constraints for fatigue life, are replaced to the equivalent static design constraints for stress/strain coefficients. The equivalent static design constraints are computed from static or eigen-value analyses. We carry out an optimal design for structure-borne durability of the newly developed bus and verify the effectiveness of the proposed method by examination of the result.

• The Journal of the Korea Contents Association
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• v.18 no.4
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• pp.406-415
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• 2018

The purpose of this study was to analyze the effectiveness of Capstone Design Program on creative leadership, problem solving ability and critical thinking of nursing students. The subjects of 18 experiment groups taking course in nursing capstone design of U university in P city and 20 control group of K university in G city. Data were collected before and after nursing capstone design class using self-reported questionnaire. Students Creative leadership and problem solving ability showed significant showed improvements after the Capstone Design Program. Creative leadership, Problem solving ability and critical thinking was positively correlated and then Problem solving abilities appeared to be higher improved critical thinking. Therefore, it is recommended that sufficient repetitive practice is to be made in order to improve Creative Leadership, Problem solving ability and critical thinking.

• Transactions of the Korean Society of Automotive Engineers
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• v.9 no.1
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• pp.122-130
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• 2001

In order to improve the efficiency of the design process and the quality of the resulting design, this study proposes a design method for determining design variables of an automotive wheel-bearing unit of double-row angular-contact ball bearing type by using a genetic algorithm. The desired performance of the wheel-bearing unit is to maximize system life while satisfying geometrical and operational constraints without enlarging mounting spae. The use of gradient-based optimization methods for the design of the unit is restricted because this design problem is characterized by the presence of discrete design variables such as the number of balls and standard ball diameter. Therefore, the design problem of rolling element bearings is a constrained discrete optimization problem. A genetic algorithm using real coding and dynamic mutation rate is used to efficiently find the optimum discrete design values. To effectively deal with the design constraints, a ranking method is suggested for constructing a fitness function in the genetic algorithm. A computer program is developed and applied to the design of a real wheel-bearing unit model to evaluate the proposed design method. Optimum design results demonstrate the effectiveness of the design method suggested in this study by showing that the system life of an optimally designed wheel-bearing unit is enhanced in comparison with that of the current design without any constraint violations.

• Journal of Engineering Education Research
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• v.11 no.1
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• pp.34-47
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• 2008

The purpose of this paper is to design the curriculum by considering the experimental design and analysis for enhancing an engineer's creative problem-solving ability. This ability is one of the important objectives in modern engineering education. To achieve this purpose, first, it is suggested that the experimental design and analysis, a specific area of engineering education, is highly relevant to the creative problem-solving ability, one of the basic engineering competencies and of the final goals in engineering education. And also, the curriculum already introduced the experimental design and analysis in departments of mechanical engineering of universities are surveyed and reviewed. 59 papers are also analyzed to know how engineers applicate the knowledge of the experimental design and analysis to their activities. Finally, the module of engineering education curriculum introduced the experimental design and analysis to enhance effectively the engineer's creative problem-solving ability is suggested.