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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Rotating machine component that transmits power or motion |
A Shaft |
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An axle is used to? |
Support rotating members |
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Name three shaft hub connections |
Key seat, splines and press fit |
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What's the twelve steps in the design procedure of a shaft? |
1. Determine speed and torque.
(2. Determine attachment and location of power transmitting components. 3. Specify bearing locations. 4. Propose a general form of the shaft geometry.)
5. Determine forces on the shaft and resolve radial forces into components in perpendicular directions. 6. Solve for reaction forces on support bearings. 7. Produce shear force and bending moment diagrams. 8. Select material (yield strength, tensile strength, endurance strength).
(9. Calculate stresses (torsional shear and bending stresses, stress concentrations included))
10. Specify dimensions for each part of the shaft. (Diameters)
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Assignment included: 1,5,6,7,8,10 |
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How big is the pre tensioning parameter and when is it used? |
It's 50% i.e. 1,5 and is used when calculating the force acting on the shaft from the gear. |
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How big is the recommended safety factor for a shaft? |
2 |
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What's the stress concentration factor for: A) sharp fillets B) well-rounded fillets C) key seat (hole) D) retaining ring grooves |
A) Kt=2.5 B) Kt=1,5 C) Kt=2 D) Kt=3 + d required=1,06*d calculated |
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Witch three parameters determines your endurance strength? |
1. Specify material 2. Specify surface finish 3. Estimate modified endurance strength |
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Name three types of property rights |
Copyright (literary and artistic) Patents (trade marks, patents, industrial design) Soft IP (trade secrets, know-how) |
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Name three types of property rights |
Copyright (literary and artistic) Patents (trade marks, patents, industrial design) Soft IP (trade secrets, know-how) |
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Name four research steps in the innovation process |
1. Prior- art searches (is this new?) 2. Patentable searches (is it inventive enough) 3. Freedom-to-operate searches (do I infringing someone else?) 4. State of the art searches (what technology exist now) |
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Name three types of property rights |
Copyright (literary and artistic) Patents (trade marks, patents, industrial design) Soft IP (trade secrets, know-how) |
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Name four research steps in the innovation process |
1. Prior- art searches (is this new?) 2. Patentable searches (is it inventive enough) 3. Freedom-to-operate searches (do I infringing someone else?) 4. State of the art searches (what technology exist now) |
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Name four kinds of tolerances |
Dimensional Geometrical Fits (clearance, intermediate, interference) Surface roughness |
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