2
votes
Accepted
Benefits of a steel ball in janka hardness test
The steel surface needs to start and remain parallel to and tangent to the wood surface. This is automatic and easy to re-create with a spherical steel surface. The first part is unnecessarily ...
- 824
1
vote
Accepted
How do I relate tongue weight to weight x distance?
you need to jack up the car and check the structural layout of the hitch. Usually, there are two arms welded to the sides of the hitch receptor reaching to the left and right side of the mainframe of ...
- 22.8k
1
vote
Lifting Analysis of a 3D cuboid
I think the most important thing you need to account for in this problem is the fact that in the most general form of the solution, only three of the ropes will be in tension.
The above is always the ...
- 24.3k
1
vote
Force required for a power generator in a coal power station
It is common practice to "motor" a turbine/generator assembly slowly in the absence of steam or water flow, while maintaining full lubricating oil pressure, so the sheer weight of the blade ...
- 15.4k
1
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Problem of lifting of a body using 4 strings
assuming symmetry thus the CG of the cube in it's center, the tension in the cable is m/4 * the ratio of the length of the diagonal cable to the height of the cone.
$$T = (m/4)* \sqrt( (a/2)^2+(b/2)^...
- 22.8k
1
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Calculating torque in planetary gearbox
Generally, torque is not applied to the individual planetary gears, just to the carrier that holds them. Unless you have an individual motor attached to each planet gear (physically possible, but ...
- 268
1
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Spring and damper in series, equation of motion
Let $\delta$ be the no-load length of the spring. The problem indicates that the distance between $x$ and $y$ is equal to $\delta$ when both $x$ and $y$ are zero. I.e. the spring force is zero when ...
- 423
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Will the torque applied to a circular object be the same if the object isn't aligned in the center of the Torque?
No, you can have your motor even outside of the steering wheel and connect it to the center of the steering wheel by a pulley. it doesn't matter.
Torque does not have a center. It has direction and ...
- 22.8k
1
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Calculating the maximum lifting force of an average car
I did not check your arithmetic but it looks right.
One can get any amount of torque or if you will, drag force on the tires, by changing the gears or in case of tire even using a smaller set of tires....
- 22.8k
1
vote
Force from screw on the clamp
Acceptable clamp load is 75% of the proof load of the bolt. Proof load is the maximum tensile stress on the bolt in the elastic range.
here is a partial table of Metric Bolt proof loads.
Source
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- 22.8k
1
vote
Vector homework problem
This questions appears to be about essentially vectors. If you recall a vector has two components: Magnitude and Direction. In this question, you are asked to take the magnitude of the 100 lbf and ...
- 1,258
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