Axle Definition and 94 Threads

A fellow on a Jeeping forum contends that axle shafts used in Jeep CJ Dana 30 front axles are made of ductile iron. I say they are made of a forged carbon steel similar in composition to 1040 or 1050 which I understand is commonly used in OEM axle shafts. Is it possible for ductile iron to...

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 Not really a HW problem (no diagram), I just need to figure out this number for a design. I have an axle with two crank arms attached to either end, pointing in opposite directions. The entire thing will spin. I need to find the equivalent moment of inertia of the axle...

I was reading about dentist drills, and I discovered an amazing piece of trivia about them: modern dentist drills spin at 400,000 revolutions per minute (over 6666 times per second!). So I thought, if this was spinning a large wheel, whose outer rim would rotate at a rate progressively faster...

I'm sorry for posting another thread but I'm totally lost here.. Homework Statement A wheel and axle having a totel moment of inertia of 0.002kgm is caused to rotate about a horizontal axis by means of an 800g mass attached to a cord wrapped around the axle. The radius of the axle is 2cm...

I am confused with how to find moment of inertia of composite example. Like a hollow shell having one disc at each end and a shaft in the centre. How to find out Moment of Inertia if Force is applied tangentially on the shell and if force is applied tangentially on the shaft. Should I sum up...

My Question... To find the maximum deflection of this axle, can the formula: (W*a/24*E*I)*(3*l^2-4*a^2) Will the total length simply be 370mm(wheel to wheel), or will I have to include the total length of the axle?

Homework Statement I have to derive an equation that relates the rpm of an axle that is fixed to a car wheel of radius r, given the velocity of the car subscripts: w is wheel, a is axle Homework Equations angular velocity of the wheel is given by ω_wheel=2π/T=2πf=v/r_w (1)...

I was wondering, if say a rocket in space receives a force perpendicular to its body (on some point on the body), how would one find the axle in which the rotation occurs? Would it be along its center of mass? Thanks.

What determines if something is rotating? For example, if we have a spaceship with a fake gravity rotation thing, how do we know if the outer ring is rotating or if it is stationary and the inner axle is spinning? Normally we could just say its all relative, etc, but weather or not you feel...

Note - pi is not meant to be an exponent, not sure why it looks like one... Homework Statement The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed...

I've been working on a simulation of a Lorenz Waterwheel, and friction was killing it - I couldn't use realistic coefficients of friction. The problem, I discovered was that I was not using the correct equation to calculate the force of friction that counters the wheel's rotation. Having...

Homework Statement A stick of uniform density with mass M = 8.6 kg and length L = 0.7 m is pivoted about an axle which is perpendicular to its length and located 0.24 m from one end. Ignore any friction between the stick and the axle. What is the magnitude of the vertical component of the...

Homework Statement A bicycle with a speed 12 km/h is driving along a leveled wet road. How much ahead the front axle (see picture) does the wheel jet the water that it picks up from the floor?The radius of the wheel is r = 35 cm. Let’s suppose that the drops of water that are separating from...

I've got two 14 inch wheels and now I need to attach them so that they rotate on one axle. I also need to put a free hub so that when I stop peddling the wheels keep rotating. How would I do this. I really need to know even if it's a stupid question.

why is it that the differential is not necessary for the front axle and is only in the rear axle?

I have a problem with finding stress on this front axle. The problem gives the angle at which the car is raised (front wheels off the ground) and the speed its going. It states the car comes to an immediate halt, dropping the front end. It asks to find the force the front end will withstand...

Let us consider a wheel which rotates about an axle thorugh its center with an angular velociy \omega0. After sometime it comes to rest due to the frictional torque at its axle. Now, if we go by the defination of torque than it is defined as: \tau= r x F. Since the frictional torque is exerted...

Homework Statement "The 19.8 cm diameter disk rotates on an axle through its center. F1=18.1 N, F2=26.6 N, F3=26.6 N, F4=18.1 N, and d=4.64 cm. What is the net torque about the axle? " http://i4.photobucket.com/albums/y111/kathy_felldown/kn-pic1314.png I have two questions about this...

Okay, so I am trying to analyze the reaction forces that are induced by a loading on this axle. I am running into a problem because my sum of moments equation is not independent of my force summation. That was due to a poor choice of a point to sum the moments about :blushing: So I could do...

A cube of mass m slides without friction at speed v0 and undergoes a perfectly elastic collision with the bottom tip of a rod of length d and mass 2m. The rod is pinned through its center through a frictionless axle. And initially hangs straight down at rest. What is the cubes velocity both...

Note: This is similar to 2 previous questions I've seen here (https://www.physicsforums.com/showthread.php?t=261193"), and while this is my first post, I've lurked/found this site to really be helpful in getting me to be able to figure out how to solve problems I have with my physics homework...

Homework Statement The 19.6 cm diameter disk rotates on an axle through its center. F1=22.8 N, F2=32.5 N, F3=32.5 N, F4=22.8 N, and d=4.60 cm. What is the net torque about the axle? Homework Equations Torque = F r sin (angle) F = m g The Attempt at a Solution I found all the...

Some point a while ago while driving I noticed a car whose rear wheels were noticeably bowed outward, thus: Now, wherever I go I notice cars like this. Always the rear wheels, never the front. It seems to be very common. Is this due to bad shocks? Is there an epidemic?

Homework Statement A 12.0kg box resting on a horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, light wire that passes over a frictionless pulley. The pulley has the shape of a uniform solid disk of mass 2.00 kg and diameter 0.500 m. After the system is released, find...

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...

i have been set a question to draw the shear force and bending moment diagrams for the loading condition shown on the diagram, and am not quite sure how to do this... do i need to work out other forces along the diagram? and help...much appriciated thanks!

Coaching grade school track, I have to carry around several starting blocks. Last year, to store for the next season, I made a rude carrier from 3/4 plywood that held 5 blocks, stacked on top of each other. I put wheels on the back of the cart, using shoulder bolts, which the kind man at Home...

Homework Statement Could someone explain this problem a little better to me. Problem: Calculate the net torque about the axle of the wheel shown in Fig. 8-39. Assume that a friction torque of 0.45 m·N opposes the motion and that F = 18. *see attachment for picture. I'm confused...

Homework Statement What is the net torque on the pulley about the axle if T1 = 18N and T2 = 34N? http://i241.photobucket.com/albums/ff4/alg5045/p13-11.gif Homework Equations The Attempt at a Solution Torque is really confusing me. I have no ideas as to how to start this problem.

Homework Statement A 12.0-kg box resting on a horizontal, frictionless surface is attached to a 5.00- kgweight by a thin, light wire that passes over a frictionless pulley. The pulley has the shape of a uniform solid disk of mass 2.50 kg and diameter 0.440m . What are the x and y...

Homework Statement A high speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. The flywheel has mass 35.0 kg and diameter 74.0 cm. The power is off for 33.0 seconds and during this time the flywheel slows due to friction in its axle bearings. During the time...

I have a question about this problem. A rotationally symmetric axle wheel system is smoothly joined to a fixed point O. l=distance from O to CM m=mass of axle wheel system R=Radius of wheel Is and I are the principal moments of inertia relative to CM. The axle is horizonal as the wheel...

A disk with a radial line painted on it is mounted on an axle perpendicular to it and running through its center. It is initially at rest, with the line at theta 0 = -90°. The disk then undergoes constant angular acceleration. After accelerating for 3.1 s, the reference line has been moved part...

Calculate the bending moment in the centre of the axle?? What limit stress is valid for this loading case ? may i know how to form the moment eqn?? F=300N picture - http://files.filefront.com//;5410274;;/ pls help thanx

I'm trying to figure out the following problem but I don't know where to begin: Two wheels of diameter 0.78m are attached to opposite ends of an axle of length 1.6m. The wheels roll around a circular track of inside radius 9m. a) Through what angle around the circular track must the axle...

This is the PROBLEM: Flinstone has a problem too. He built a beam mover, described below (on the attachment, DOC file, look down), but can't figure it out. Perhaps you can help. Two identical wheels and axles sets were carved from from logs. In each set, the 50 cm diameter wheels and the 14...

well I am building my car, now the paper recommends that you use paper clips that are like unfolded. After then you put the paper clip inside a rolled up piece of paper. but i can never seem to get the paper clip like exactly straight. The paper clip is the axle. So when ever the car moves the...

I have a scooter, which looks like this one http://img47.imageshack.us/my.php?image=gsra3eng9zq.jpg and i have two 7.2 volt battery packs to run two 12 volt led neon sticks that would sit underneath the deck and light up and look cool :rolleyes: . Well this works, but i think the voltage...

This problem is due on my webassign homework in 3 hours and I can't get it right! Calculate the net torque about the axle of the wheel shown in Fig. 8-39. Assume that a friction torque of 0.43 mN opposes the motion and that F = 26. The picture is here...

Hi all, new guy from CT. We were just assigned a project in physics to build and design a mouse trap car powered solely by the potential energy of a standars mouse trap. The main focus is distance, and so that is what I am aiming for. I have my basic design laid out, as I will attach two...

Two lightweight rods d = 23 cm are mounted perpendicular to an axle and at 180° to each other. (Fig. 11-24). At the end of each rod is a 700 g mass. The rods are spaced 40 cm apart along the axle. The axle rotates at 41 rad/s. http://www.geocities.com/sinceury/11-24alt.gif (a) What is...

How would I find the acceleration of the above spindles (both left and right instances)? The spindles are composed of two disks with a cylindrical solid axle. The left spindle is unwinding the string as it rolls and the right spindle is winding the string as it rolls. Static friction is present...