Design of Mechanical Systems

Basic technical drawing, understanding of outlines, cross-sections, projection, dimensions and tolerances. Use of computer aided design (CAD) for making detailed drawings of engineering components and system assembly plans.
Introduction to machine design, in particular: rotating shafts (also dynamically loaded), dimensioning against fatigue, pressed joints, interference fits, gears, bearings, couplings, seals, and shaft loads.
Introduction into the use of finite element methods (FEM) for analysis of components with mechanical and thermal loading. Basic elements, system matrices, boundary conditions, calculation of stress, solutions, convergence, accuracy, heat transfer, temperature stress, evaluation or results.

Introduction into design, function, layout and dimensioning of mechanical systems, with emphasis on component design and system function based on the interpretation and understanding of engineering drawings. After completing this course you should be able to carry out fatigue design of shafts, select gears and rolling bearings, design bolted joints and interference fits, generate a 3-D CAD model and make detailed component drawings. To be familiar with the main steps of the Finite Element Method including discretization, element stiffness matrix, system stiffness matrix, boundary conditions, load vector and computation of internal stresses related to beam and shell elements.

Lectures, tutorials and exercises. Compulsory exercises where 2/3 must be approved before taking the final exam. One project that counts 40% of the final grade, covering CAD and machine design. Postponed/repeated exams may be oral. Examination papers will be given in English only. Students are free to choose Norwegian or English for written assessments.