Wheel Definition and 840 Threads

https://www.youtube.com/watch?v=V3UsrfHa4MQ So check out the above video. When the man flips the bicycle wheel over, the turntable he is sitting on starts to rotate. What I don't understand is, how is energy transferred from the bicycle wheel to the turntable?

Hello everybody! I'm trying to write a car simulation but I'm having problems with precisely calculating the acceleration / velocity of the car's wheel. Currently the simulation works as if the Car was lifted in the air, so there is no load (vertical force) on the Wheel. What I have so far...

Hi, I have been trying to find some information on the forces acting on the wheel when the vehicle is moving but I am a little bit confused. I would be grateful if someone explain me the basic principles. What I understood so far is; (assuming front wheel drive) * when the car is...

Homework Statement I currently am confused about a, probably, simple problem >.< Back in primary school and middle school, my science teachers taught me that one of the simplest examples of a wheel and axle would the the wheels of a car (in this case a toy one), which made sense to me at the...

Hello, I'm working on calculating a torque value for an engineering project at a new internship I started. Basically there is a spinning gear wheel similar to the picture I posted below (but thicker/cyclindrical), and I need to calculate the force or torque applied on a locking bolt that...

I found some differing equations on the internet than what I thought on how to arrive at the rear wheel torque value for Motorcycles, so I thought I had better ask here to make sure. One site said Rear Wheel Torque = Chain Tension X Tooth Count Ratio (front & rear sprockets) I was under the...

Hi Guys help me out in understanding about the forces that will act on a wheel hub, which serves as a interconnector between the chassis and the wheel.This hub is for a race car. It holds the brake disc at one end and tire at the other end. I wish to analyse the hub for the stress...

Homework Statement What is the formula for angular acceleration, when the wheel's diameter, speed, acceleration and distance are known. Homework Equations The Attempt at a Solution

1 ) A wheel is making 240 rpm and after 30 sec and after 30 sec it is running at 150 rpm . A) Find the time elapse before it stops if the retardation is uniform ? B) Find the time elapse after it stops if the retardation is uniform ? my answer : w0 = 240 rpm = 8Pi rad/s w = 240 rpm =...

Hello all, I wanted experienced people here to suggest me where can I find calculations for determination of torque to turn a stationary wheel ? I am working on a machine which has a table supported by four legs and all legs can rotate aat 90 degree allowing wheels to change their...

I don't understand how one wheel could be ridden as a motorcycle, what would oppose the driving moment that rotates the tires? http://3.bp.blogspot.com/_LnXKlTB8gKw/SGrzC8_L1-I/AAAAAAAAB04/Shkqgbqadx4/s400/unocycle_main.jpg

hi guys Lets say I have a wheel that is driven by a shaft connected straight to a motor. Wheel raidus is 0.0762m while shaft raidus is 8mm. If I know the torque acting on the wheel, say 20Nm , what would be the torque on the shaft? Thanks

Homework Statement The wheel shown in the sketch below, is comprised of two 50.0 cm long thin rods of negligible mass and a thin metal ring with a mass of 10.00 kg, mounted on a very low friction bearing. A 100 gram lead weight is shot horizontally at the stationary wheel with an initial...

If an axle is being pulled with a tractive effort E, can this be resolved into a couple and forwards force E at the point of contact with a surface? Is it correct to add a limiting friction force F acting backwards against the direction of motion and if this is exceeded by E, does the wheel slip?

Simple problem I've been thinking about, How much energy can you store in a wheel of uniform mass density? There must be some kind of maximum energy you can store in the wheel. Anyone got any ideas? Thanks!

Homework Statement A ten pound car wheel has a moment of inertia of .35 kgm^2. While rotating at a constant speed the wheel makes 87.61 revolutions in 5.42s. How much torque is required to stop the wheel in 41.2 s? Homework Equations The Attempt at a Solution 87.61rev/5.42sec =...

Homework Statement A potter's wheel having a radius 0.49 m and a moment of inertia of 10.6 kg · m2 is rotating freely at 52 rev/min. The potter can stop the wheel in 5.5 s by pressing a wet rag against the rim and exerting a radially inward force of 68 N. Find the effective coefficient of...

Homework Statement A grinding wheel is a uniform cylinder with a radius of 10.0 cm and a mass of 0.570 kg. Calculate its moment of inertia about its center. 2.85 x 10^-3 kg * m^2 Calculate the applied torque needed to accelerate it from rest to 1700 rpm in 4.80s if it is known to...

Homework Statement A 68 cm diameter wheel accelerates uniformly about its center from 150 rpm to 270 rpm in 4.1 s. 1. Determine its angular acceleration. α = 3.1 rad./s^2 2. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.6 s after it has...

Homework Statement So basically there is a wheel with a radius of 0.3 m. A light cord wrapped around the wheel supports a 0.75-kg object that accelerates at 3 m/s^-2 downwards. What is the moment of inertia of the wheel? (no friction) Homework Equations I=mr^2 T=I(alpha) (alpha)=ra...

Homework Statement Hello folks, here is a problem: The effciency of a wheel and axle system is 80% and the ratio of radius of wheel of axle is 4:1. In other to lift a mass of 20 kg, the effort required is A.60N B.62.5N C.32.5N D.250N E.50N Homework Equations I made use of the...

Hi, I have conducted a few simple experiments involving a very ordinary, road going bike wheel. I came up with a value for the moment of inertia of 0.17kgm2 I really have no idea if I am in the right ballpark with that value, would anybody be able to enlighten me as to if that is a feasible...

Hi everyone , I've searched the answer for this question for a while , but haven't reach an satisfying explanation yet . Generally , from the study of friction , any force that's smaller than the static friction between the wheel and the ground would cause the wheel rolling ( Otherwise the...

A wheel rotates with a constant angular acceleration of 3.30 rad/s2. Assume the angular speed of the wheel is 2.45 rad/s at ti = 0. (a) Through what angle does the wheel rotate between t = 0 and t = 2.00 s? Give your answer in radians and revolutions. (b) What is the angular speed of the...

Homework Statement A wheel with a radius 50 cm is rolling along the ground at 10m/s[E]. That is, the centre point of the wheel is moving at 10 m/s [E]. - What are the velocities of the top, bottom, front, and back points of the wheel, relative to its center? - What are the velocities...

I need to calculate the work done by an electric motor when it has a pulley wheel on the end but nothing on the pulley wheel. I know work done = force x distance. And of course force = mass x acceleration. But I cannot for the life of me think of how I am going to work out the acceleration? or...

Homework Statement Two objects of equal mass are on a turning wheel. Mass 1 is located at the rim of the wheel while mass 2 is located halfway between the rim and the axis of rotation. The wheel is rotating with a non-zero angular acceleration. For each of the following statements select the...

Hello guys Im totally new to this stuff and looking forward to work on it please help if you could... I went to my professor for the same, she said that it can be done using parallel port programming or serial port... But i don't know how to do it... can you please help how can i get started...

Can you draw a force diagram to explain how a positive caster angle makes wheels return to a straight line in a shopping kart (as an example), while a negative caster angle would have the opposite effect. Thx

Homework Statement A wheel has volume 1.2 x 10-3 m3 when being full. A pump has working volume of 9 x 10-5 m3. How many times do you need to push the pump to fill the air to the wheel (initially there is no air in the wheel) until the pressure is 3.0 x 105 Pa? The atmospheric pressure is 1.0 x...

So, the classic scenario: Person on frictionless rotating platform, holding a spinning bicycle wheel with vertical axis of rotation. Flips it over, and the platform spins in the direction the wheel was originally spinning. Angular momentum is conserved. My question is: Is there any way to...

I drew up a quick picture in paint of a wheel under acceleration. This is the driving wheel of a RWD car. Am I missing any forces/drawn in the wrong direction? Thanks.

Hi, For a project, I'm using spinning wheels to accelerate a foam ball. I know the output motor stats (rpm), torque, etc. It's connected by a pulley to a sprocket, which is then connected by a shaft to the spinning wheel. I'm wondering, how would I do the calcs from the motor to the spinning...

Homework Statement I have a wheel with a diameter of 1.4m and the radius of gyration is 0.42m. The wheel has a mass of 13kg. Calculate maximum rotational kinetic energy. Homework Equations The Attempt at a Solution From this all i can do is calculate the moment of inertia which...

Hello folks, here is a problem: The effciency of a wheel and axle system is 80% and the ratio of radius of wheel of axle is 4:1. In other to lift a mass of 20 kg, the effort required is A.60N B.62.5N C.32.5N D.250N E.50N I started by bringing out the data in the question: Effiency...

Homework Statement A solid pulley wheel is rotated at a constant velocity for 10 sec's. Find the angular displacement? Wo (inital angular velocity) = 6Rad/s W (angular Velocity) = 0 Rads/s \alpha = 0 (angular acceleration) Rads/s-2 θ = ? (angular displacement) Rads/s t = 10 sec...

Homework Statement There is a wheel with spokes rotating on a horizontal axis about its center. the Wheel has a w(omega) of 6∏ and a radius of .04meters there is a bug on one of the spokes at exactly 1/2 radius or .02meters. the bug has a mass of .005kg. Homework Equations not really sure...

Homework Statement Assume there is a person sitting on a stool that is free to rotate, the person holds a wheel in which its center of mass is directly above the center of mass of the person plus the stool, then the person rotates the wheel counterclockwise at 6π rad/s. Suddenly, the person...

Homework Statement I am trying to figure out how to determine a vehicle's translational acceleration given a torque at the wheels so that I can determine what effect wheel diameter and mass will have on the ultimate translational acceleration. Homework Equations F = Ma I*alpha =...

I am trying to mount rubber wheels on a motor to make a paper airplane launcher similar to this: http://www.instructables.com/id/Super-fast-paper-plane-launcher/ only, instead of wheels, I'm using rubber stoppers (for flasks) I've got two questions, 1) how do I attach them to the motor...

Homework Statement Homework Equations I_solidcylinder = .5mr^2 I_thinring = mr^2 torque = I*Ω (where Ω = angular acceleration) change in theta = .5(Ω)(time^2) The Attempt at a Solution Attempted to solve for angular acceleration: (2.5)(9.8)(0.1) = (3*0.25^2 + 0.5*4*0.1^2)Ω...

I am trying to find authority that the gap between the turbine wheel and the housing is important to the performance the turbocharger will be able to add to a diesel engine.

Homework Statement The original problem is Figure P6.61 shows a Ferris wheel( I have attached the image) that rotates four times each minute. It carries each car around a circle of diameter 18.0 m. (a) What is the centripetal acceleration of a rider? What force does the seat exert on a...

Homework Statement A cord 3.0 m long is coiled around the axle of a wheel. The cord is pulled with a constant force of 40N. When the cord leaves the axle, the wheel is rotating at 2.0 rev/s. Determine the moment of inertia of the wheel and axle. Neglect friction. (Hint: The easiest solution is...

Homework Statement Hi. I have: A 3 kg bicycle wheel rotating at a 2484 rev/min angular velocity has its shaft supported on one side. When viewing from the left (from the positive x-axes), one sees that the wheel is rotating in a clockwise manner. The distance from the center of the wheel to...

Homework Statement Calculate the angular acceleration in radians per second squared of a wheel that starts from rest and attains an angular velocity of 545 revolutions per minute in 1.00 minute. (a) What is the angular displacement in radians of the wheel during the first 0.500 min? (b) During...

Hi everyone, I'm studying Motorsport Engineering and am trying to do an in depth analysis of a vehicle double wishbone suspension system. I have been using Excel to model the behaviour of certain aspects, and I am currently trying to analyse the effect of a wheel hitting a bump and it's...

Homework Statement A wad of sticky clay with mass 2.45 kg and velocity vi = 52.0 m/s is fired at a wheel of moment of inertia 1.2 kg m2 and radius R = 1.26 m. The wheel is initially at rest and is mounted on a fixed horizontal axle that runs through its center of mass. The line of motion of...

Homework Statement A Ferris wheel with a radius of 9.7m rotates at a constant rate, completing one revolution every 39s. Suppose the Ferris wheel begins to decelerate at the rate of 0.19rad/s^2 when the passenger is at the top of the wheel. Find the magnitude of the passenger's...

My friend bought a budget, Chinese built ATV quad. It has two wheel drive. The front wheels have pairs of ball bearings. After only a couple of hours of operation 3 of the 4 front wheel bearings failed big time. I came up with two guesses as to why the bearings failed so quickly. 1. The wheel...