Chapter 130 Drivelines - Nicholas Gaspar

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Units 5 & 6: Closed Gear Systems If two discs are fixed by an axis, their radial velocity and acceleration is equal. Essay Questions Multiple-Choice Question A. True B. False tandem are called what? What important element must we consider when re-scaling a gear system design? A. Space between the elements Cog C. Rack B. Recommended minimal element thickness C. Removal of support material is still possible D. None of the above D. Transmission g ng gearayoo ear teeth prevent eli C. Decreaseo D. Gear svstems are easy to design and manufacture Torce Ked ihe e uDove In Spur gear systems, the tooth profile is A. inclined to the axis of rotation. B. vertical to the axis of rotation. C. parallel to the axis of rotation. D. None of these

Industrial Maint.   What are the direction and speed of the driver gear (D1) in Figure 6-40 if the driven gear (D2) is a 2 in. gear, D1 is a 12 in. gear and D2 is rotating at 1248 rpm (CW)? see picture

Calculate the final drive gear ratio for a differential using a ring gear with 49 teeth and a matching pinion gear with 15 teeth.

40. Calculate the final drive gear ratio for a differential using a ring gear with 49 teeth and a matching pinion gear with 15 teeth. You may use a calculator. Final gear ratio = %3D

A multi-gear train system is shown in Figure 4.1 It consists of a driver, idler and driven gear. The driver gear has 40 teeth, the idler has 20 teeth while the driven gear has 10 teeth. Determine the gear ratio for the multi-gear train system. Driver Idler Driven Figure 4.1 Multi Gear Train

SYSTEM AND CONTROL (MECHANICAL) (SA2) Gear B and C are mounted on a central shaft and they rotate at the same speed/as a unit. Gear A is the driver and gear D is driven. Driver Gear (10 Teeth) Driven Gear (50 Teeth) Queshions If gear A rotates in a clockwise direction, to which direction will gear C rotates? 1 (2) .2 If gear B rotates in an anti-clockwise direction, to which direction will gear C rotates (2) 3 Calculate the gear ration of the system (6) .4 Draw the systems diagram of the above mechanism (6) [16]

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The advantage of herringbone gear compared to a helical gear is the internal cancellation of its axial thrust loads Select one: True False

According to " shigley's Mechanical Engineering Design " what are the missing words ?

You must give answer for all three questions.

Identify label H in the following spur gear diagram. Pinion (driving) 1. Angle of- approach Angle of recess Position of teeth leaving contact Position of teeth entering contact H. Angle of approach Angle of recess

Units 5 & 6: Closed Gear Systems If two discs are fixed by an axis, their radial velocity and acceleration equal. Essay Questions Multiple-Choice Questions A. True B. False Two or more gears working in tandem are called what? What important element must we consider when re-scaling a gear system design? A. Torque В. Сод C. Rack D. Transmission A. Space between the elements B. Recommended minimal element thickness C. Removal of support material is still possible D. None of the above What are the advantage(s) of using gear systems? Gear teeth prevent slippage Few elements can create great force C. Decreased power creates more force Gear systems are easy to design and manufacture A. В. D. Force transmitted from a small gear diameter to a larger gear diameter is A. Increased B. Decreased C. Stays the same D. None of the above In Spur gear systems, the tooth profile is A. inclined to the axis of rotation. B. vertical to the axis of rotation. C. parallel to the axis of rotation. D. None of…

Circle either True or False for the statements below. True or False If two interlocking gears have the same radius, then the absolute value of the torque in each gear will be the same. True or False You can increase power by increasing the angular velocity of the shaft. True or False You can increase power by slowing down the frequency of the shaft. True or False Interlocking gears of different radii must experience the same angle of twist.

When an idler gear is placed between the driving and driven gears, the driven gear:a. rotates the opposite direction as the drive gearb. rotates the same direction as the drive gearc. reduces the torque transfer from the drivegear to the driven geard. none of the above

State two advantages of a compound gear train over a simple gear train

Question 1: A team of engineers from the Department of Mechanical Engineering are task to design a hoist equipment using a reverted epicyclic gear train shown in Figure 1. The drum must be keyed at the centre of the arm E using the same shaft. The pinion gear A is keyed to a second shaft which carries a chain wheel. Whereas the chain must be operated by hand. The two shafts have common axis but can rotate independently. The gear wheels B and C are compound and rotate together on a pin carried at the end of arm E. The gear wheel D has internal teeth and is fixed to the outer casing of the block so that it does not rotate. The wheels A and B have 16 and 36 teeth, respectively, with a module of 3 mm. The wheels C and D have a module of 4 mm. D- B E A- Figure 1: Top view of a reverted epicyclic gear train. 1.1. Draw the side view layout of the gear system to be designed. Clearly indicate the positions of all components. 1.2. Determine the number of teeth of wheel D. 1.3. Make use of the…

The advantage of the helical gear drive over the spur gear drive is 1) teeth failure can be controlled 2) ease to manufacturé 3) the contact area is less during meshing 4) the contact area is more during meshing

Name the three drive configurations that a gearsetcan transfer torque.