Wheel Definition and 840 Threads

I am trying to predict elastic wheel deformation. I am not quite sure how to do it. How might one approach the problem? Take a steel wheel: 6 in. diameter, 2 in. thick, with a contact force of 1000lbs E = 30,000,000 psi Poisson ratio: .27 Would one calculate this in finite layers...

Three random variables are generated X1, X2, X3 on a spnning fair wheel three times. these variables are independent and uniformaly distributes on [0,1]. find probability that these values are none within +-d of each other where 0<=Y1<=Y2<=Y3<=1 is order statistics for randon variables...

I know if I apply a force(perpendicular to he radius) to a wheel to rotate it, I am applying a torque. I change the wheel's angular acceleration, thus creating a torque. I can find the direction of a torque via the right hand rule. If there is a wheel spinning in space where there are no...

Would like to replicate a project we did in school for Turbomachinery class, which was to build a functioning hydropower turbine model. We were given the varous ideal parameters like bucket width, width to length ratio,number buckets and nozzle diameter based on size of wheel. Anyone know of any...

Homework Statement A well-lubricated bicycle wheel spins a long time before stopping. Suppose a wheel initially rotating at 170 rpm takes 70 s to stop. A)If the angular acceleration is constant, how many revolutions does the wheel make while stopping? Homework Equations i used...

I'm trying to calculate Wheel torque in ft/lbs things I know Weight lbs or kg Wheel Diameter inches or meters acceleration data (I know how fast this wheel is spinning in MPH/kph/meters per second)and I know how much it changes over a given amount of time(meaning I know its going from "MPH1" to...

Homework Statement 1. A wheel mounted on an axis that is not frictionless is initially at rest. A constant external torque of 50 N.m is applied to the wheel for 20s, giving the wheel an angular velocity of 600 rev/min. The external torque is then removed, and the wheel comes to rest 120 s...

I am trying to figure out what would be the best way (by best way I mean the cheapest, and simplest effective way) to detect slippage of the wheel. The surface is very low friction, somewhere in the range of 0.05 mu. Here are my ideas: Sense current, watch for spikes/troughs monitor wheel...

i have this burning question which i have thought about for a long time and yet i could not seem to figure it out. here it goes. when a wheel rotates to move a car or any vehicle, the friction would act on the opposite direction and so the friction (red arrow) would act in the same direction...

How would you find fnet if there is no force applied? does anything happen to the other forces as well? how do you find the theoretical and actual distances traveled up and down an incline if you have photogate data and need to find the theoretical and actual distance traveled? should i...

Cars on a ferris wheel are moving in a verticle circle. The radius of the wheel in 6 meters. what must be the rotation rate of the wheel in order that riders experience three times their weight at the bottom of the circle? for this rotation rate what will be the required force exerted by the...

(sorry about another topic but this week's HW is hard @_@) Homework Statement A circular-shaped object has an inner radius of 6 cm and an outer radius of 22 cm. Three forces (acting perpendicular to the axis of rotation) of magnitudes 13 N, 28 N, and 13 N act on the object, as shown...

Hi PF, I'm a bit disappointed because the final exam is coming up next Monday and I can't solve this problem. Not that I don't know how to proceed, but I just get a wrong answer. Homework Statement See figure to imagine the situation. This is about a wheel of radius R which contains a circle...

Dear All, I have learned that if a wheel is rolling without slipping, then the velocity of point of contact of a wheel with respect to the ground is zero instantaneously. However, I am having some problems while trying to understand that. We can express the point of contact's velocity...

Homework Statement A vertical grinding wheel is a uniform disk of mass 62 kg and radius 45 cm. It has a handle of radius 69 cm of negligible mass. A 25-kg load is attached to the handle when it is in the horizontal position. (a) Neglecting friction, find the initial angular acceleration of...

Homework Statement this is not really a homework question, but it would make a good one!. i posted it in the classical mechanics forum, but did not seem to get much help i have a two wheel rims, 50mm thick, (ouside radius 500mm, inside 475mm) connected by 8 horizontal spokes. between two of...

i have a problem regarding rolling wheels. ihave a double wheel rim connected by spokes, which is in perfect balance, with two baskets hanging between them, on opposite sides of the wheel, such that when a weight is added to the top basket the wheel will rotate, dropping the basket at the bottom...

Homework Statement What is the normal force acting upon a person at the top of a ferris wheel that has a radius of 60 meters, and is traveling at a rate of 25 meters/second? Homework Equations Centripital acceleration = velocity²/radius Centripetal Force = Gravity Force - Normal Force...

Hi everyone, I am very new to the mechanical engineering field, all I currently have is knowledge of basic physics. I am trying to construct motorized roller blades (not for practical use, just a demonstration). I need help either building a small/power motor, or after purchasing one...

Homework Statement A hamster runs in its wheel for 4.5 hours every night. If the wheel has a 6.8 cm radius and its average angular velocity is 3.0 radians per second, how far does the hamster run in one night? Homework Equations angular velocity = ang displacement / time The...

A 40kg child takes a ride on a Ferris Wheel that rotates 4 times each minute and has a radius of 9m. I firgured that angular velocity is .419 rads/sec I figured that tangential velocity is 3.77m/sec I figured that centripetal acceleration is 1.58m/sec^2 Questions a)What force in N does...

Hey, Today I assisted to a lecture I didn't understand in Physics I. I've asked to a helper-teacher a question and he made me much more confused. Say I have a rotating bicycle wheel in my hands (my hands don't influence the wheel's rotation) in front of me such that the wheel is in a...

Hello. My brain doesn't seem to be working at the moment. If a wheel's center is traveling at V0, why is the acceleration of a point on the edge of the wheel equal to V02/r where r is the radius of the wheel? Thanks for your time. Edit: Oops should have have put a question mark in the...

I thought that in the formula v=wr, r refers to the distance from the center, i.e., the radius. However, if the wheel is rotating on the ground, the books says that the linear speed at the top of the tire is 2rw, as opposed to rw. Why is this?

Pendulum Ride - Trigonometric Function Homework Statement At Canada's Wonderland, a thrill seeker can ride the Xtreme Skyflyer. This is essentially a large pendulum of which the rider is the bob. The height of the rider is given for various times: Time(s) 0 1 2 3 4 5 6...

1. Homework Statement A cyclist accelerates from rest at a rate of 1.10 m/s2. How fast will a point on the rim of the tire (diameter = 79.7 cm) at the top be moving after 3.10 s? 2. The attempt at a solution: i just tried this one... a_avereage= Δw/Δt so a_avereage= ( w_2 - w_1...

On a Go-Kart you have two independent steerable front wheels that can be adjusted to steer at different rates. What I am trying to figure out is a formula I can use, converted to degrees or MM, to give the turn angle each wheel must achieve to turn the kart and not create mutual drag and...

Prove that the flange of a train wheel moves backwards in respect to the ground, using the trigonometric functions, linear and angular velocity I really have no idea to go about doing this, all I know is that the proof involves some use of trigonometric functions, linear and angular velocity

I have a question about the simple machine: the wheel and axle. I know already that mechanical advantage through a wheel and axle system is achieved by force being applied through the wheel to turn the axle. This mechanical advantage would be in the form of you applying less force, but over a...

I have a question about the simple machine: the wheel and axle. I know already that mechanical advantage through a wheel and axle system is achieved by force being applied through the wheel to turn the axle. This mechanical advantage would be in the form of you applying less force, but over a...

Hello. I'm coding a controller for a two wheeled robot whos speed and angle is determined by the velocity of it's two wheels. The problem is, my code does calculations using speed (mm/s) and angle (radians). So I need someway of converting that speed and angle into the velocity of the...

I'm doing an independent study for high school, and my project is to build a wheel motor such as the one pictured http://www.popsci.com/files/imagecache/article_image_large/files/articles/hiw_hybrid_infog_485.jpg" (though less complex, obviously). Essentially what I'm trying to do is to make an...

The motion diagram below shows the position of a seat on a Ferris wheel at 12 moments. One full rotation is shown; the positions at moments 0 and 6 are labelled. For each of the following questions, choose the appropriate direction from the second diagram...

If a problem gives the number of teeth on the wheel, the revolutions per second of the wheel and the distance betweeb the mirror and the toothed wheel...what formula do youuse to solve for the speed of light??

there is a wheel. A shaft which rotates about a pivot point a is connected to the wheel at the point b. what is the influence of the distance a to b in the torque applied to the wheel . the wheel just rests on the shaft at point a and it is not welded to the shaft.

I am trying to fitgure out the turning radius of a simple car with front wheel steering based on the velocity difference between the front wheels. Unfortunately, I could not figure out how this could be done. I figured out the relationship between steering angle and turn radius but I am unable...

The inventor of a water wheel claims that his design is better than a conventional overshot or breast wheel at extracting energy from water flows at low heads. He states that the design shown can generate up to 260 W of power from a head of 0.8 m. average household energy use over a 24-hour...

A bike has wheels with diameter 0.6m. The bike moves along the road at 6m/s. Determine an equation for the height of the the speck on the tire above the road as a function of time in t seconds. I think that the amplitude is 0.3 and my period is 0.6pi (circumference). Would there be any phase...

If it was possible to build: A vertically mounted fly wheel - over 2 miles in diameter, the largest moving mass ever created by man. (half above ground, half below ground) Would it work? Would it continue to spin any longer because of its mass? Could it then be used to generate...

We've got a wheel with a moment of inertia I. The wheel has a mass M=14 kg and a radius of gyration k=0,15 m. A cord is wrapped around the drum with a radius R= 0,09 m and a mass m=0,1 kg is hung on the end. The mass i allowed to fall a distance s= 2,5 m before it hits the ground. The...

Homework Statement a wheel (hoop) of 10lbs has one 10lb spoke which is horizontal and rests on the ground (held). it is connected to an axle. the radius of the wheel (length of spoke) is 1ft. when the wheel is let go, what is the force of the axle on the wheel? (the problem also asked...

Suggestion For 12" Wheel Rim I Need To Urgently Require To Buy A 12 Inch Wheel Rim For A Vehicle I Am Preparing...cud Anyone Suggest An Oem Which Has A Specification Suitable To Mine

FOR PICTURE of CIRCUIT: community.webshots.com/photo/2479536900103460081IWuFAY A wheel consiting of a large number of thin conducting spokes is free to rotate about its axle. The brush makes contact one spoke at a time. There is a uniform B field pointing into the page. The wheel is...

There have been some threads on relativistic wheels/balls from the view of a road the wheel/ball is rolling on, without slipping. So I decided to research them. I found some nice movies and saw some nice drawings that help explained the movement/shape of the wheel. It is an ellipse that is...

Weight and Wheel ! (Linear and Angular Acceleration) Homework Statement Consider a bicycle wheel that initially is not rotating. A block of mass is attached to the wheel and is allowed to fall a distance . Assume that the wheel has a moment of inertia, I, about its rotation axis...

[SOLVED] Ferris Wheel Problem! PLEASE HELP! Homework Statement The Ferris Wheel takes 29 seconds to make one revolution. The diameter of this Ferris Wheel is forty feet. The distance from the ground to the top of the Ferris Wheel is forty-five feet. (That means that the distance from...

In the figure below, a constant horizontal force Fapp of magnitude 15 N is applied to a wheel of mass 14 kg and radius 0.40 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.43 m/s2. (a) In unit-vector notation, what is the...

I don't know why this problem is confusing me so much. Actually I do. I'll explain.A car with wheels of radius R is accelerating at a constant rate. At what point on the tires is there the greatest acceleration, and what is this acceleration?I've attempted this from different perspectives...

Engine breaking seems to me as dependent of relative angular velocity of the wheels to angular velocity of the engine which is connected to the gear. Engine breaking comes from drag forces that occur inside cylinders and act on the pistons moving inside fluid. So in this sense there is no...

Hi folks, my first post here, looks like a very helpful website though, so i thought i'd share my problem. I'm a mechanical engineering student working on a vehicle that has a zero turning radius system, which is to say (for the purposes of this problem) that it's controlled by 2 drivewheels...