Teaching of Parametric Modeling Methodologies for

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WSEAS TRANSACTIONS on ADVANCES in ENGINEERING EDUCATION Zhuming Bi. using a 2 D drawing software tool Note that 2D this new course is introduced it includes the list of. hand or computer drawing is imperative but it seems contents and syllabus In Section 3 the encountered. insufficient to today s undergraduates One of the challenges are discussed and the solutions to. main reasons is that traditional 2D engineering overcome these challenges are provided In Section. drawings have been rapidly replaced with advanced 4 the results of course development have been. 3D solid modeling The course on solid modeling reported In Section 5 some suggestions for further. will introduce some fundamental tools used to improvement of this course are identified. design large scale and complicated products and, processes and to integrate solid models with 2 Overview of Solid Modeling Course. engineering analysis required by applications In the Computer graphics and visualization is the key. northern east area of Indiana the well trained communication means for engineers to demonstrate. workers in solid modeling are relatively less in design concepts adopt advanced technologies such. comparison with the available job positions where as virtual reality CAD CAM CAPP rapid. advanced solid modeling skills are required Taking prototyping current engineering in their engineering. an example of our university the number of practice With the rapidly development of solid. engineering students with an enter level solid modeling tools and applications traditional. modeling skills is less than the number of the knowledge on engineering graphics and 2D drawing. internship positions required solid modeling exposes its limitations to understand complex solid. knowledge As the matter of fact this is the key models and master popular solid modeling tools. driver for the department to develop the solid The possession of knowledge and skills of solid. modeling course modeling has evolved from better to have to. The necessity of developing a solid modeling must have. course does not imply that a university can place Engineering schools and programs have many. this new course readily in its curricula Based on a different considerations in determining how to teach. national survey of engineering and graphics engineering graphics how many credit hours the. educators only 16 of engineering and technical course should be how often the course is offered. graphics faculty evaluated solid models in and what contents should be covered 11 The. introductory courses while 40 9 of them answers for those questions are varied from school. evaluated 2D CAD drawings 8 The idea to to school Based on a thorough assessment on. develop a solid modeling course is not unanimous various factors the Department of Engineering at. Some suggested that solid modeling skills have to the IPFW decided to offer a 2 credit hour core. be developed through life experiences Several course on solid modeling but open only to. studies stated that solid modeling skills cannot Mechanical Engineering students this new course. effectively be taught through typical instructional aims at sophomore and junior students An. methods Nevertheless an equal number of studies instructor and students meet weekly each meeting. have found that solid modeling has been improved consists of one hour lecture on the fundamentals of. through instruction 9 The research was conducted solid modeling and two hour lab for the practice of. on the effects of solid modeling and visualization to solid modeling using commercial software tools An. technical problem solving It was found that overview of this course is provided in this section. visualization was a significant predictor of technical. problem solving as defined by successful prototype 2 1 Course Goal and Objectives. construction 10 The subjects of the course should The goal of the course is to introduce solid. be assessed carefully to avoid being a substitution of modeling methods and integrate solid models with. training of a specific software tool On one hand necessary engineering analysis It will prepare. there are many vendors of solid modeling software students to identify the design intentions create and. tools all of them provide the training services for modify part or assembly models productively and. their products On other hand a university tends to provide students with the essential skills to use a. keep classic courses on computer graphics and solid model for advanced engineering design. spatial visualization this new course must Solid modeling is an interdisciplinary field that. exclusively focus on the fundamentals of solid involves a growing number of areas Its objectives. modeling evolved from a deep understanding of the practices. In this paper the challenges in developing this and requirements of the targeted application. new course are discussed and feasible solutions to domains Its formulation and rigor are based on. these challenges are provided The rest of the paper mathematical foundations derived from general and. is organized as follows In Section 2 an overview of. E ISSN 2224 3410 2 Issue 1 Volume 10 January 2013, WSEAS TRANSACTIONS on ADVANCES in ENGINEERING EDUCATION Zhuming Bi. algebraic topology and from Euclidean differential Geometric Modeling 15 since the applications of. and algebraic geometry The computational aspects CAD CAE and CAM are heavily relied on. of solid modeling deal with efficient data structures dynamic properties of solid models solid modeling. and algorithms and benefit from recent has mostly been treated as a core ingredient of those. developments in the field of computational courses 16. geometry Techniques for modeling and analyzing The solid modeling course is required not only to. surfaces and for computing their intersections are cover sufficient depth and breadth of theory and. important in solid modeling 2 To adopt this new fundamentals but also contain a strong emphasis on. course in current curricula of the Engineering the application of the technology 17 Learning. Program at IPFW two objectives of the solid from the aforementioned experiences of peer. modeling course are i to have students to institutions this new course consists of two. understand some fundamental knowledge about modules theory and CAD practice The list of. computer graphics for solid models ii to have selected subjects has been illustrated in Figure 1 It. students to use commercial software tool for solid has been organized under four pillars i e 3D. modeling modeling fundamentals part modeling assembly. modeling and solid models in product life cycle It. 2 2 Course Outline turns out that the objectives for theory and practice. Traditional computer drawing course emphasized can be well balanced. heavily on correct size and style of geometric, elements instead of the underlying problem solving. process used to create the model the look of the,graphic model is focused It has been suggested to. use a dynamic modeling approach to provide the, opportunities for students to learn about geometry.
through the embedding of geometric behaviors into, models and then testing these behaviors via dynamic. change of the model 12,While 3D constraint based modeling has been in. use in industry for more than ten years it has only. been within the last few years that there has been. gradually adoption of these modeling tools at, colleges and universities 3D modeling tools have Figure 1 The Contents of Solid Modelling Course. been identified as a key component of some areas of. engineering education for a while 13 but it has 2 3 Course Textbook. only been recently that educators have begun to Both of fundamental knowledge on solid modeling. investigate how the newer constraint based and the hand on skills of using CAD tools are. modeling tools bring a new set of possibilities to covered in this class Therefore an ideal textbook. instruction 12 In teaching a solid modeling would put similar weights on theory and. course instructors have merged it with many other applications However no textbook has been found. different subjects such as computer graphics to satisfy our requirements appropriately. Computer Integrated Manufacturing CIM Two types of textbooks are available on market. Computer Aided Engineering CAE and numerical The first type of the textbooks focuses on. calculation For example the solid modeling subject fundamental theory of computer graphics They are. is integrated with computer programming at focused on the basics of computer graphics and. Michigan Technological University the merged drawing 18 19 Taking an example of the. course is taught at the first year of its engineering reference book by Hoffmann 20 it could be an. program The motivation is to develop proficiency excellent option for the introduction of graphic. in solving engineering problems by using computer theory concepts and algorithms needed to design. graphics 14 For some universities without and implement solid modeling systems However it. mechanical engineering a computer science is inappropriate to be adopted as a textbook to. department often in collaboration with the sophomore and junior ME students the majority of. mathematics department to offer solid modeling them lack sound mathematic knowledge and. knowledge in different courses such as Geometry interests for computer graphics The second type of. for Computer Graphics and CAD Curves and textbooks focuses on practical skills These books. Surfaces for Computer Graphics and CAD and include little theory but the detailed tutorials about. E ISSN 2224 3410 3 Issue 1 Volume 10 January 2013, WSEAS TRANSACTIONS on ADVANCES in ENGINEERING EDUCATION Zhuming Bi. solid modeling Tutorials in those books are years This design package has earned industry wide. developed for one of commercial CAD software recognition and acceptance because of its. packages such as Solid Works 21 Catia 22 functionality ease of use and wide range of support. ProE 23 Solid Edge 24 or Unigraphics 25 Due services offered including partnerships with creators. to heavy graphical nature of the contents the second of allied applications for manufacturing and. type of the textbooks cannot serve the educational engineering analysis. purpose sufficiently 26, By taking into consideration of 3D modeling 2 5 Organization and Evaluation.
theory and applications it is determined that the The course has a weekly meeting Each meeting. class teaching materials consists of the lecture notes consists of a one hour lecture and two hour practice. on solid modeling theory collected by the instructor Students are required to complete one or two. and the practice tutorials from a textbook which is exercises in class and to complete homeworks and. written for a specific CAD tool The textbook by design projects after school Students are graded. Howard and Musto 21 has been selected for this based on exercise homeworks design projects and. course exams,2 4 Software for Labs 3 Challenges and Solutions. Hand on skills have to be cultivated from practice in. actual design environment Using a CAD software,3 1 Diversities of Students. tool an instructor can demonstrate the functionality. One challenge for this new course is the variety of. of the software through relevant examples Students. engineering drawing backgrounds among students,are required to acquire mastery through the. To accommodate mechanical engineering students,completion of specific part and assembly modeling. in class two prerequisite courses are ENGR 120,assignments and design projects Some subjects of.
Graphical Communications and Spatial Analysis, practice include sketching functionality using the. and MA 165 Analytical Geometry and Calculus I,relations to capture design intent create placed. However computers at engineering labs are,features extrusion revolution sweep loft and. equipped with many CAD software tools some, assembly modeling It was expected that this course. students manage to self teach a few of CAD tools,would provide students with a solid background to.
in particular the CAD tools such as AUTOCAD,create fairly complex parts and define simple. and SolidEdge are used in other courses Those,assemblies 27. students have a very good understanding of solid,The next question is what software fits the. modeling On other hand a few of students have,purpose of this course well All of solid modeling. had no chance to be exposed to any CAD software, tools follow the same principles of solid modeling in.
tools and their knowledge and skills on computer, the development of their software tool and there is. graphics are very limited, no a clear winner about what software tools should. To accommodate these two groups the period of, be taught at a university It is not critical in terms of. class meetings has been set as 3 hour instead of 2. the knowledge of solid modeling the students should. hour for other 2 credit courses The long period, learn once a student is familiar to one software tool. allows the students with the limited computer, it is very easy for him her to transfer the skill to a.
graphic knowledge to complete the required,new software tool On other hand future employers. exercises in class which is crucial for them to build. of students do care about the students skills on a. their confidence in learning a new software tool,specific software tool Okudan 28 propose. Students are expected to understand the fundamentals of solid modeling incorporate design intents in modeling processes effectively and master basic skills of using commercial software for solid modeling The overview of course design is given encountered challenges are discussed and solutions to these challenges are provided

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