Buckling of Wheels

with a calculator

is there a formula?

I am sorry but I cannot give you such a clever answer as previous one. What I can imho say is that the buckling depends on several factors as:

- inertia of the wheel rim section

- number of radial connections between rim and hub, their stiffness in bending in the wheel plane

- mean radius of rim and of course properties of the stuff you make the wheel of .

In fact you should be more specific in your question since the answer depends on many factors.

Have you tried before "consulting" CR4 to make a google search ? Do it it will help also for a better form of question.

thanks nick name, I'll do that

There are many types of load that must be considered, and many variables, including type of wheel and composition....for instance, is it a spoked wheel, or solid, is there a rubber tire, is it solid or inflated, is it driven or freewheeling....etc..

Radial, axial and torque loads on a wheel.....

http://www.physicsforums.com/showthread.php?t=655431

....and then of course, it must be tested...

http://www.wheeltest.com/

non-spoked like that of a wheelbarrow

Destructive testing......see how much weight it takes to crush...

...or if you want to design one(reinvent the wheel?) then you might try a software program...

http://www.ijaiem.org/volume2issue8/IJAIEM-2013-08-09-017.pdf

http://www.ansys.com/Products/Workflow+Technology/Geometry+Interfaces/Features/ci.Geometry+Interface+for+CATIA+V4+and+V5.cz

There must be a reason you asked the question.

Wheels can even buckle in more than one way and direction.

Are you a student? Are you a maker of wheels? Are you just curious?

Don't make us ask you many questions to determine what you really want.

Tell us.

I'm designing an incinerator and want to make it mobile. the incinerator will weigh approximately 2800newtons and I'm considering a suitable pair of wheels i can use as the rear support to make it mobile.

Interesting units. Never seen it used to express weight.

Unless you are going to fabricate the wheels yourself, why not just pick a suitable wheel from a catalogue or table on the internet. They will be rated for you, so you don't have to overly complicate things.

Unless, of course, this is just homework.

630 pounds

629.4652 Pounds force to be exact.

Weight is the force exerted on an object, due to gravity.

Newtons is usually a term of force, not weight.

you know I'm quite familiar with that, I just fired up my decoder ring and "assumed" he was expressing weigh, not force but with many of these questions all you have to work with is a mystery

correction noted ... thanks

Weight IS force. You were correct to begin with. Newtons are force, kg are mass. Do not be deterred by the ignorant. People who use kg for "weight" usually cannot actually do the math.

There is confusion here in the US as folks use Pound Mass and Pound Force interchangeably. This confusion was addressed when I was in school (to become an Engineer) by using Pound Force for weight, and Slug for mass.

This should probably be it own topic. Please feel free to OT this message. Although, it seems to be something that needs to be talked about.

Take care,

-A-

thanks for the insight

Since as you write weight is FORCE the force unit is valid! But since gravity is variable weighing is MASS oriented since mass is the same all over the world. Thus you more often met as weighing unit the "kg". This is also the reason why scales are calibrated with reference weights.

http://www.ebay.com/bhp/1000-lb-casters

i just looked up casters online and discovered they work well only on smooth and flat surfaces but i need one that can move on partially rough surfaces

exactly what I thought was going to be the case. please try and ask complete questions with detailed information, it makes for better responses from this group

i am designing an incinerator and making it mobile. the incinerator will weigh 285kg. I'm want to use fixed supports at the front and wheel support at the rear. the incinerator will have to b tilted in order to move it but i don't know what kind of wheel to use here ... hope this is clear enough

gone fishing...........

Look at what they use for wheels on portable generators...probably some that weigh about the same.

or maybe just purchase one of these....

i just saw some caster wheels online and I'm considering them ... thanks y'all for all your help

Rubber wheels on an incinerator??? I think not.....I would go with the type you see on some dumpsters, about 5" wide steel rollers....

http://www.servicecaster.com/Wheels/container-nose-rollers.php

Yeah, that's why I suggested the wheeled dolly...take the incinerator to where you want to use it and set it down, remove dolly, make fire/smoke/stink/ etc etc.

Put incinerator back on dolly and go to the next house you want to disturb!

These might work! Search for steel wagon wheels.

What we have here, is failure to communicate.

Really, if you don't have enough imagination/intelligence to look for tires, or wheels or some other term, this is hopeless.

<un-subscribes in disgust>

For bumps, a bigger diameter is better.

i am using a pair of 6" pneumatic caster wheels

If you're buying the wheels, I would ask the manufacturer. Keep in mind that the point of failure could be not the wheel itself but an axle or bearing.

point noted sir