Recent content by tebrown3
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Understanding Transmission Design: Connecting RPM from Gearbox to Sprocket
im confused. how do you relate the RPM from gearbox to a sprocket?- tebrown3
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- Design Transmission
- Replies: 1
- Forum: Mechanical Engineering
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Help design torque, power needed
thank you that cleared up a lot, but how do you calculate the power and torque needed when the car is at rest to 35 mph?- tebrown3
- Post #3
- Forum: Mechanical Engineering
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Help design torque, power needed
I am designing a transmission for my class but i have a couple of concepts i kinda confused, i have a 550lbs load, and i want to move 35mph=15.64m/s at a constant speed, assuming the drag coefficient to be Cd=.55 and the coefficient of rolling resistance to be Crr=.3 (tires on sand), i found out...- tebrown3
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- Design Power Torque
- Replies: 5
- Forum: Mechanical Engineering
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Calculating Torque Requirements for a Mobile Robot
ok thanks but I am still a little confused when you said Power = Robot velocity * Robot mass * (Coefficient of Rolling resistance * g + acceleration) can we assume a random reasonable velocity and an reasonable acceleration?- tebrown3
- Post #3
- Forum: Mechanical Engineering
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Calculating Torque Requirements for a Mobile Robot
I am building a robot with a total mass of 835g, using two servo motors conected to the tires made of rubber which have a 3.33cm radius, and i wanted to know how to find out the total torque required to move the robot taking friction into account, the only things i know are...- tebrown3
- Thread
- Design Robot Torque
- Replies: 10
- Forum: Mechanical Engineering