Course syllabus for Machine elements, advanced course

Course syllabus adopted 2021-02-26 by Head of Programme (or corresponding).

Overview

  • Swedish nameMaskinelement, fortsättningskurs
  • CodeLMU102
  • Credits7.5 Credits
  • OwnerTIMAL
  • Education cycleFirst-cycle
  • Main field of studyMechanical Engineering
  • DepartmentINDUSTRIAL AND MATERIALS SCIENCE
  • GradingTH - Pass with distinction (5), Pass with credit (4), Pass (3), Fail

Course round 1

  • Teaching language Swedish
  • Application code 65121
  • Open for exchange studentsNo
  • Only students with the course round in the programme overview.

Credit distribution

0119 Examination 7.5 c
Grading: TH		 7.5 c
  • 31 Maj 2023 am L
  • 07 Okt 2022 am L
  • 16 Aug 2023 am L

In programmes

Examiner

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Eligibility

General entry requirements for bachelor's level (first cycle)
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Specific entry requirements

The same as for the programme that owns the course.
Applicants enrolled in a programme at Chalmers where the course is included in the study programme are exempted from fulfilling the requirements above.

Course specific prerequisites

The courses LMA401 Calculus, MVE580 Linear algebra and differential equations, LMT202 Mechanics, TME255 Strength of materials and PPU201 Machine elements, or equivalent knowledge.

Aim

The aim of the course is to expand the knowledge of existing machine elements of central importance in mechanical engineering. Special attention is drawn to mechanical transmissions. The subject has a central role for a machine engineer because of the wide multitude of machine elements in a lot of different areas (from kitchen devices to vehicles).

Learning outcomes (after completion of the course the student should be able to)

  • explain the fundamental difference between form and power dependent transmissions.
  • define and compute the efficiency of a mechanical transmission.
  • define and compute gears for different types of mechanical transmissions.
  • describe how the flat and V-belts and associated pulleys are standardized.
  • compute turning angles and shaft spacing for belt drives.
  • compute the maximum shaft torque and maximum power at the belt drive slip limit.
  • compute the design stresses that occur in the flat belt and the V-belt.
  • compute gear ratios and shaft speeds as well as shaft torque of step gears.
  • describe the difference between gearboxes that have stepwise variable gearing and those that have continuously variable gearing.
  • compute gearing and shaft speeds and shaft torque of manual and automatic gearboxes.
  • describe the two simple planetary gear types.
  • compute shaft speeds and shaft torque of the two simple planetary gears.
  • compute shaft speeds and shaft torque of a compound planetary gear.
  • compute whether power circulation exists in a compound planetary gear unit or not.
  • compute shaft speeds and shaft torque of a (standard) differential.
  • describe the main function of fixed, pivotal, elastic and maneuverable shaft couplings as well as freewheel, safety and centrifugal couplings.
  • compute the torsion spring constant for elastic couplings.
  • compute the relationship between the slip torque and the axial force of the slat and cone joints.
  • compute functional limits for freewheel couplings with latches, rollers and clamping bodies.
  • compute the maximum torque that can be transmitted through a safety clutch.
  • compute transmissible torque of centrifugal connections.
  • describe hydrodynamic lubrication of sliding bearings.
  • describe what cavitation means for hydrodynamically lubricated bearings.
  • design hydrodynamically lubricated axial and radial bearings.

Content

The emphasizes is placed on the function and the methodology of dimensioning somre types of machine elements, especially mechanical transmissions. Clutches and brakes are other examples of elements which will be treated in the course.

Organisation

The course consists of integrated lectures/problem solving sessions, major assignments and labs

Literature

Mägi och Melkersson, Lärobok i Maskinelement, EcoDev International AB, 2006

Examination including compulsory elements

The examination is based on a written exam and approved assignments and labs.

The course examiner may assess individual students in other ways than what is stated above if there are special reasons for doing so, for example if a student has a decision from Chalmers on educational support due to disability.