All Questions
Tagged with automotive-engineering gears
17
questions
0
votes
1
answer
170
views
3-way differential
I am interested in finding a way to facilitate constant 6-wheel drive utilising a centre differential that splits the torque from the gearbox between the 3 axles while allowing them to vary in ...
10
votes
7
answers
9k
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Why are bulldozers so slow?
Tracked-type tractors and bulldozers are very slow engineering vehicles. Their top speed is less than 15 km/h and when pushing it is even lower (< 5 km/h). For example: the Caterpillar D9's top ...
- 235
1
vote
2
answers
65
views
Half bidirectional transmission shaft gear box solve
I'm wondering how to accomplish some kind of gear box that would reverse only the direction of one side of the two shafts on it, like in the picture below.
-1
votes
1
answer
47
views
Can somebody please help me identify this gearbox?
I want to identify whether this is a bevel gearbox/worm gearbox or a standard gearbox from an automobile. This is a tractor PTO driven winch.
- 1
-1
votes
1
answer
143
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How can I make a needle to turn slowly CW to the final position, then return quickly CCW back to the initial position and to start again turning CW?
What I want is after the needle reaches 60 it should go back to 0 in the way showed in the image
The mechanism should preferably be based on gears which convert a steady continuous rotation to the ...
0
votes
0
answers
139
views
Calculation on gearbox design
I want to design a gearbox of 70hp input motor and speed of 1400rpm. The gearbox ratio is 1:10 of 2 stage parallel arrangements.
How do I calculate for the teeth, modules and other requirements ...
0
votes
2
answers
355
views
Wheel's torque and differential gearbox
I know that the differential gearbox is providing a torque to the wheels; as the relation in the figure indicates : Tw (wheel torque) = Td (differential torque) × (ηd×nd). Where nd:is the differential ...
- 50
-1
votes
4
answers
70
views
Shifting Between Gears To Achieve Higher Acceleration
If the car's acceleration is higher when the wheel's angular acceleration is higher(tangential acceleration=alpha x radius). Why are higher gears not used to accomplish the acceleration of the car ...
- 50
1
vote
3
answers
1k
views
Do gears affect top speed?
Do more gears affect the top speed/acceleration of the car in any way? I know the gears won't increase hp since more gears would increase RPM but would decrease torque.
- 31
1
vote
0
answers
367
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Gear Oil HP 85w-140 vs HP-140
I have a 4 Stroke scooter 150cc (SYM JET-14).
Manufacturer recommends 85w-140 gear oil. The price difference between 85w-140 and single grade 140 is tremendous. Given that in my country and during ...
- 11
0
votes
2
answers
419
views
How don't dog clutches collide?
I'm learning about how dog clutches work particularly in sequential transmissions.
I'm having a hard time understanding the principle which ensures dogs will always mesh correctly. I can easily ...
- 193
-2
votes
1
answer
2k
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What are positive drive gears? [closed]
Gears are called positive gears and belt drives are called negative drives. Explain in detail.
2
votes
3
answers
626
views
Smoothed Particle Hydrodynamics (SPH) Vs. Large Eddy Simulation (LES) for Gearboxes
In the not too distant future I will be looking to simulate lubricant oil flows in a gear box, with rotating gears located in a bath of oil. I will be looking at the distributions at various angles of ...
- 508
1
vote
0
answers
52
views
What actuators do the me-shifter gear shifting system uses?
I have a shifter kart (125ccm kz2) with 6 gears.
What I want to do is to change gears from the steering wheel. Like in the system mentioned in the question.
I have the electrical and electronic ...
5
votes
4
answers
5k
views
How to simulate car acceleration
I am a high school physics student and I've been trying to simulate the acceleration of a car as it fully accelerates from rest, but I'm finding it's much harder than I thought. Here was my first ...
- 255