Properties of component
Elements of calculus of machine components.
At the end of this learning unit, the student is able to : | |
| 1 | Specific learning outcomes of the course
· Write functional specifications for a machine · Identify the functionalities of a machine (actuation, bearing systems, transmission, sealing, ') · Estimate the installed and maximum power, the energetic consumption and the efficiency of a machine · Design a simple machine following an adapted methodology · Identify the basic hypotheses of elements dimensioning · Dimensioning following various criteria (yield strength, elastic compliance, fatigue) of usual elements (e.g. shafts) · Dimensioning while taking into account the effect of dynamic loading, stress concentration and residual stresses · Choose machine components (bearing, gasket, transmission) Read and interpret the drawing of an existing machine · Hand drawing of machine components and overall drawings · Placing tolerances for a mechanical system
· Machine component design : threaded fastener and power screws, rivet and welding rolling bearing, sliding bearings
In consideration of the reference table AA of the program " Master's degree civil engineer mechanics ", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning:
AA1.1, AA1.2 AA2.1, AA2.2, AA2.3, AA2.4, AA2.5, AA2.6, AA2.7, AA2.8 AA4.3, AA4.4 AA5.1 |
The contribution of this Teaching Unit to the development and command of the skills and learning outcomes of the programme(s) can be accessed at the end of this sheet, in the section entitled “Programmes/courses offering this Teaching Unit”.
· Functional requirements (Specification conditions)
· Principal functions of components (actuation, bearing systems , transmission) Origin of loads
Second part : properties of component use
· Geometric characteristics
· Tolerances and adjustments, shape tolerances, surface conditions, roughness and scale effects
· Residual stresses
Third part : elements of calculus of machine components
· Dimensioning in relation to various failure criteria : elastic buckling, plastic yielding, fatigue, while accounting for dynamic loads, stress concentration, residual stresses, safety factors
· Investigated components : threaded fastener and power screws, rivet and welding rolling bearing, sliding bearings, spur gears, helical, bevel and worn gears, clutches and brakes, Power transmssion components (belt, chains,, etc..), shaft and assocated part (key, pin, coupling, ')
