Subject Title: WOODEN STRUCTURES FOR CONSTRUCTIONS

Semester / Year of study: semester I / IIIrd year

Status: compulsory for the specializations Wood Processing Engineering (Romanian) and Wood Engineering (English); optional for specialization Engineering of Furniture and Finite Wooden Products (Romanian)

Objectives:
      - Gaining knowledge of wooden materials used for constructions.
      - Gaining knowledge of the main structure elements of the wooden houses - components and calculus.
      - Gaining knowledge of wooden joints in buildings - components and calculus.
      - Use of plane wooden elements in the structure of various buildings.

Contents:
The course support contains general issues regarding wooden constructions, materials, joints of the building elements and plane elements for construction, divided into the following chapters:
      - Chapter 1. Wooden houses.
      - Chapter 2. Wooden materials used for construction purposes.
      - Chapter 3. Elements of structure and the calculation of wooden house joints.
      - Chapter 4. Elements of structure and the calculation of wooden buildings.
      - Chapter 5. Wooden houses. Examples.
      - Chapter 6. The technology of structural elements in wooden buildings.
The course is completed by practical laboratory classes , having the following contents:
      - Study of wooden joints in buildings.
      - Study of the beams construction.
      - Study of the truss construction.
      - Study of the frame construction.
      - Study of the arch construction.
      - Study of boards used for constructions.

History:
   The discipline with its first name "Wooden Constructions" was created as a self-dependent course starting with the year of study 1995-1996, when it was included as an optional discipline in the curricula for the Wood Processing and Design of Furniture and Finite Wooden Products specializations, the fourth year of study.
   Before 1995, a part of this discipline was included in the subject entitled "Manufacturing of Finite Wooden Products".
   Starting with 2000 and until now, the discipline has became compulsory for the students of the Wood Processing specialization and it remained optional for the students of the Design of Furniture and Finite Wooden Products specialization.
   Starting with the year of study 2005-2006, the faculty curricula changed, being aligned to the Bologna agreement. At this point, the discipline gained a new name: "Wooden Structures for Constructions".
   The initial discipline, "Wooden Constructions" was created by Prof.dr.eng. Ivan CISMARU. In 2000, Prof.dr.eng. Constantin LAZARESCU took over the discipline and developed it through lecturing and laboratory sessions, as well as by publishing two books, which represent valuable teaching and reference material for both students and industrial specialists.

Present Head of Discipline:
   Prof.Dr.Eng. Constantin LAZARESCU, graduate of Wood Industry Faculty in Brasov, class 1975.
Title of PhD Thesis: "Contribution concerning the study of wooden dowels compression in order to assure the fits in the assembling process". Thesis defended in December 1985 at the "Transilvania" University in Brasov.
      - LAZARESCU, C.; LAZARESCU, C.N. (2004) "Wooden Constructions", Published House of       "Transilvania" University, Brasov;
      - LAZARESCU, C. (2006). "Wooden Structures for Constructions - Vol I. Plane Elements and Vol II.       Houses, Attics and Indoor Stairs", Published House of "Transilvania" University, Brasov. The third       volume of this monography - "Annexes and Exterior Design" - follows to be published.
Titles/Awards:
      - 1992-2000: Vice-Dean of the Wood Industry Faculty;
      - 2004-2008 and 2008-present: Head of the Wood Industry Machines Department.

Perspectives and Opportunities:
      - The future development of the discipline takes the following main objectives into account:
      - To improve the infrastructure of the laboratory with new types of wooden structures used in       constructions.
      - To elaborate and publish a laboratory guidebook.
      - To develop and promote new computer assisted design methods for wooden structures used in       constructions.

Subject Title: 3D MODELING

Semester / Year of study: semester I / 3rd year

Status: compulsory

Objectives:
      - Gaining knowledge on how to use the program package AutoCAD.
      - Learning about 3D modeling of furniture and other finished wooden products in AutoCAD.
      - Obtaining the necessary level of knowledge in order to approach new software for AutoCAD-based       computer aided design, such as Mechanical Desktop, CAD T, Imos etc.

Contents:
   The course consists of two main chapters and several subchapters:
   1. Modeling in AutoCAD 2D
      1.1. Introduction to AutoCAD. The concept of drawing, modeling and aided design in AutoCAD.
      1.2. Presenting the drawing editor, menus, toolbars, dialog boxes, editing toolbars. Input of commands       via the keyboard or by selecting them from the menu. Opening a work session for a new drawing or an       existing drawing, designing templates, saving a drawing, closing a work session.
      1.3. Coordinate systems in 2D, operations with coordinate systems, absolute, relative carthesian and       relative polar coordinates.
      1.4. Initializing the work space. Displaying commands. Establishing measurement units. System       variables. Mechanism of object selection, filters. Ways of setting specific points of entities (Osnap).
      1.5. Drawing layers.
      1.6. Drawing objects without thickness (lines, circular arcs, rectangles, circles, ellipses etc.).
      1.7. Drawing objects with thickness (poly-lines, rectangles, circles etc.).
      1.8. Drawing sketches.
      1.9. Properties of entities. Commands for editing poly-lines (closing an open poly-line, opening a       closed poly-line, editing thickness and knots, drawing curbs in or between the knots of the poly-line)       and objects (deleting, simple or multiple copying, parallel copying, mirror copying, moving, rotating,       breaking, extending, stretching, cutting, resizing entities etc.).
      1.10. Hatching objects.
      1.11. Creating user shapes.
      1.12. Writing texts.
      1.13. Dimension of the drawings, dimension variables, linear, circular, angular, aligned dimensions,       dimension editing etc.
      1.14. Creating and exploiting blocks, block attributes.
   2. Object modeling in 3D.
      2.1. Drawing techniques in 3D.
      2.2. Coordinates in 3D.
      2.3. Visualization of three-dimensional representations.
      2.4. Drawing with Wireframes and 3D surfaces. Creating regions.
      2.5. Solids 3D. Setting up solid models in 3D.
      2.6. Editing 3D drawings.
      2.7. Applying materials, lights, backgrounds, decorative elements etc. Image rendering.
      2.8. The concept of model space and paper space, viewports in model space and paper space.       Obtaining projections of the solid model.
      2.9. AutoCAD Menus. Elements of aided design in AutoLISP.
   The practical training completes the theoretical knowledge and allows the students to improve their practical skills in 2D modeling (bordered frame, panel frame, jig, profiled milling cutter, table, stool, using of blocks without and with attributes) and 3D modeling (wireframe modeling of a cabinet, solid modeling of a frame, a stool, a chair, a table etc.), image rendering, obtaining 2D projections from a 3D model, using menus and programming in AutoLISP for modeling technological flows.

History:
   The subject "3D Modeling in AutoCAD" is relatively new. After 1990, it was introduced into the curricula of all specializations at the Wood Industry Faculty. At the beginning, the subject was named "Computer-Aided Programming and Design". Over the years, the subject content has constantly been updated according to the evolution of AutoCAD from version AutoCAD10 used at the beginning in 1990 up to the current version AutoCAD 2008. During this whole period, AutoCAD went through several versions, such as: AutoCAD10 (1988), AutoCAD11 (1990), AutoCAD12 (1992), AutoCAD13 (1994), AutoCAD14 (1997), AutoCAD2000 (1999), AutoCAD2000i (2000), AutoCAD2002 (2001), AutoCAD2004 (2003), AutoCAD2005 (2004), AutoCAD2006 (2005), AutoCAD2007 (2006), AutoCAD2008 (2007). Each version brought new facilities that had to be made available to the students. Therefore, the documentation needed for this subject is prepared in electronic format and shall soon be available online, on the faculty website. Beside the teaching material prepared for the students, the faculty also organized several intensive courses for graduates of the Faculty of Wood Industry, who wished to improve and update their professional skills in this particular area of interest. Such courses are still organized, on call, through the PRO LIGNO Foundation.
   Since 1990, this subject was taught alternatively by several staff members of the Wood Industry Machines Department, i.e. Prof.Dr.Eng Teofil MIHAILESCU, Senior Lecturer Dr.Eng. Wilhelm LAURENZI, Lecturer Dr. Eng. Gheorghita COMSA and Lecturer Dr. Eng. Luminita BRENCI.

Present Head of Discipline:
   Senior Lecturer Dr.Eng. Wilhelm LAURENZI, graduate of the wood Industry Faculty, class 1974.
Title of PhD Thesis: "Contributions to the Modeling and Optimization of Wood Cutting by means of Circular Saw Blades with a view to Computer-Aided Process Control". Thesis defended in April 2000 at the "Transilvania" University in Brasov.
Publications within the field of discipline:
      - LAURENZI, W. (2001). Computer-Aided Design in AutoLISP and Applications in Wood Industry (in Romanian language). Publishing House of "Transilvania" University in Brasov.
      - MIHAILESCU, T.; LAURENZI, W. (2005). Guidebook for Laboratory Works AutoCAD 3D. University Printing House.
      - LAURENZI, W. (2006). 2D Modeling in AutoCAD (electronic format)
      - LAURENZI, W. (2006). 2D Modeling in AutoCAD. Practical Applications (electronic format)
      - LAURENZI, W. (2007). 3D Modeling in AutoCAD (electronic format)
      - LAURENZI, W. (2007). 3D Modeling in AutoCAD. Practical Applications (electronic format)
Titles/Awards:
      - 2002-2004: Vice-Dean of the Wood Industry Faculty.

Perspectives and Opportunities:
   The future development of this subject shall pursue the following main objectives:
      - Using 2D and 3D modeling in all subjects where students must prepare a project, and also as a tool       for preparing all final thesis projects.
      - Including new compulsory or optional subjects in the academic curricula, which shall provide the       opportunity to get familiar with new AutoCAD-based software for aided design of panel furniture, such       as AD T 2008 or Imos 2008.
      - Including new compulsory or optional subjects in the academic curricula, which shall provide the       opportunity to get familiar with new AutoCAD-based software for computer-aided design in       constructions.
      - Continuing the efforts to provide intensive courses for learning and improving AutoCAD 2D and 3D       skills for graduates and other interested persons.