Course - Machine Elements - TMM4112
TMM4112 - Machine Elements
About
Examination arrangement
Examination arrangement: Home exam
Grade: Letter grades
Evaluation | Weighting | Duration | Grade deviation | Examination aids |
---|---|---|---|---|
Home exam | 100/100 | 4 hours | A |
Course content
Basic functions of machines and machine elements. Mechanical integrity.
- Fatigue design: including Wöhler curve and Smith diagrams, Fatigue limit, Reduction factors, Stress concentrations, Multi-axial stresses, Spectrum fatigue lifetime.
- Machine and rotor dynamics: Spring supported machines, critical speed/rpm, static and dynamic balancing.
- Mechanisms and transmissions: Mechanics of the screw, gears.
- Couplings and brakes: Disc break (evenly distributed pressure and wear), drum brake (internal and external), fixed and releaseable couplings.
- Bearings: roller bearings, bearing design, life time assessment.
- Springs: torsion, coil, leaf, ring and rubber springs.
- Press and shrink-fit connections: deformation of thick-walled tubes, tolerances and fits.
- Bolts: threads, load carrying capacity, pretension, tightening/torque moment, bolt diagram.
- Welded joints: static and fatigue analyses.
Learning outcome
Knowledge: The student has knowledge of:
- Machine elements and their design, functional principles, mechanisms, and integration in machinery.
- The functions of some common machine elements and the solution of design and engineering problems associated with these.
- How to establish structural and dynamics models for mechanical behavior with basis in subsystem or component.
- The application of design criteria for different (mechanical) functional and design requirements for various machine elements and components.
- Choice of reasonable design and engineering solutions with basis in basic understanding of mechanical behavior and design criteria.
Technical skills: The student shall master the following:
- Apply knowledge from basic courses such as mathematics, physics, mechanics, statics, (strength of) materials to evaluate, design and engineer real components/machine elements.
- Simplify basic machine systems into representative models for mechanical analysis.
- Perform simple predictions, providing a basis for more effective and right evaluation of critical factors and issues associated with (design) robustness of machine components.
- Provide the necessary competence to carefully evaluate results obtained by more advanced numerical analysis methods such as FEM.
General competence: The student shall on general basis understand:
- Main steps and considerations included in a design process for machine elements. - Understand on general basis reasonable, sound design principles for selected machine components.
- General design and engineering principles for machine elements subjected to static and dynamic loads.
- On an independent basis capture knowledge of more complex machine elements and design and engineering principles.
Learning methods and activities
Lectures, demonstrations, exercises.
Compulsory assignments
- Exercises
Further on evaluation
Admission to the written examination requires approval of 1/2 of exercises. If there is a re-sit examination, the examination form may be changed from written to oral. For a re-take of an examination, all assessments during the course must be re-taken.
Recommended previous knowledge
TKT4116 Mechanics 1, TKT4122 Mechanics 2, TMM4100 Materials Technology 1, or equivalent.
Course materials
G. Härkegård: Dimensjonering av maskindeler, Tapir Akademisk Forlag, Trondheim, 2004. Support Literature: J.A. Collins, H.R. Rusby, G.H. Staab: Mechanical Design of Machine Elements and Machines: A Failure Prevention Perspective, Wiley 2010
No
Version: 1
Credits:
7.5 SP
Study level: Third-year courses, level III
Term no.: 1
Teaching semester: SPRING 2022
Language of instruction: Norwegian
Location: Trondheim
- Technological subjects
Department with academic responsibility
Department of Mechanical and Industrial Engineering
Examination
Examination arrangement: Home exam
- Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
-
Spring
ORD
Home exam (1)
100/100
A
Release
2022-06-10Submission
2022-06-10
09:00
INSPERA
13:00 -
Room Building Number of candidates - Summer UTS Home exam 100/100 A INSPERA
-
Room Building Number of candidates
- * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
- 1) Merk at eksamensform er endret som et smittevernstiltak i den pågående koronasituasjonen.
For more information regarding registration for examination and examination procedures, see "Innsida - Exams"