3 votes

Why the iron bar holding the gondola lift is shaped in this way?

The cables of this type of lift are routed over the top of pulleys at each support tower. The hardware supporting those pulleys extend beyond the vertical plane of the cable in a manner which requires ...
fred_dot_u's user avatar
  • 7,055
3 votes

How to find out the strain distribution of a block in a simple compression test?

Strain is displacement normalized by the original distance, so yes, the same displacement applied uniformly to the same original dimension will produce the same strain for that axis for any material. ...
Chemomechanics's user avatar
2 votes

rotate gear while no keeping it engaged with other gears

The component you are looking for is called a freewheel, a mechanism that only engages rotation in one direction and turns free in the other direction. A common application is the connection between ...
OpticalResonator's user avatar
2 votes
Accepted

How to calculate force acting on axle from hub motor with known torque?

Assuming the motor has a Torque of 40Nm, what is the force on the fork centred at the axle? Since the system is fixed in place, there is no acceleration or rotation. Therefore any torque developed ...
BowlOfRed's user avatar
  • 136
2 votes

Who introduced the term "Stress" in mechanics?

Cauchy was French, so probably not. Term "stress" was used earlier for example by Peter Barlow in "AN ESSAY ON THE STRENGTH AND STRESS OF TIMBER" (1817). You may find many ...
Tomáš Létal's user avatar
2 votes

What is the impact of energy control in an AC in terms of cooling and power consumption?

Inverter ACs are more efficient because a compressor running all the time at 50% is more efficient than a compressor that runs at 100% half the time. This is because the 100% compressor has maximized ...
Tiger Guy's user avatar
  • 6,803
1 vote

How does the mechanics of left-handed scissors differ from right-handed/standard scissors?

Scissors operate on the principle of "shearing" action. The slight curvature on the blades means that the point of shearing is where the edges intersect. For a good cutting experience the ...
Transistor's user avatar
  • 10.6k
1 vote

Keeping a cardholder hanging from a lanyard always facing the same side

If the cardholder can be attached to the lanyard at both corners rather than at one point in the middle then it will tend to straighten out. Alternatively a piece of self-adhesive Velcro (hook side) ...
Transistor's user avatar
  • 10.6k
1 vote

Doubt related to S-N curve

Complete reversal is the most basic type of cyclic loading. You can describe it just using the amplitude, because the mean stress is zero. S-N curves obtained in this way can also be used for ...
Tomáš Létal's user avatar

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