Sounds like something is loose inside the dry drum

bad drum bearing, bad drum teflon pads or both possibly

You may have to find a way to identify the location of the sound; type of sound..metal on metal, like something is loose?
The only thing I know that rattles in a dryer is if something got into the baffles/the wings on the inside of the drum.
If this is the case you have to open the top of the drum and unscrew the one baffle that that has something loose in it.

is the unit level, open the dryer try moving the drum around, see if the drum loose, there mite something in the machine that got caught on the drum some how and when it goes around it bangs,
you mite try spinning the dryer without turning it on and listen to the drum and see if you can hear any thing hitting the drum or what is make those load sounds. if you cannot turn the drum manually you mite bribe a guy or friend to check it out for a beer or glass of wine, and if they down drink bake some cookies.

good luck rod

Although this is possible, usually one of the wheel bearings may have gotten dry or even is stuck. Inside there are wheels that the drum is steadied by and that rotate with the drum. If it's a year old it should be under warranty and a tech can fix it. If that is a problem, remove the back (after unplugging it) find the wheels and rotate the drum by hand. If a wheel is stuck or dry you will find it. I hope this helps.

Dryers are belt driven. Something has locked the drum or motor, and that is why you hear the humming sound. With the dryer turned off, reach inside the drum and try to turn it. It should turn pretty freely. There will always be some drag. If you need a lot of effort to turn the drum, then it is time to investigate what is causing the drag. Probably, something has gotten wedged between the drum and the front wall of the dryer.

If you cannot find anything there, then it could be helpful to remove the outer shell from the dryer and investigate further to find the source of the drag. This requires some mechanical skill, so think carefully if you want to try it or call a service company or simply replace the dryer. A used dryer can cost $100 or less.

The belt probably broke, and coincidentally happened while drying the shoes. The belt is easy to replace. Open the back and you'll probably see the belt laying on the bottom

Does the drum just constantly turn and never stops or does it just take a really long time to stop? If it just takes a long time to stop it sounds like a loose belt. If it just turns and turns and turns something in the control panel isn't telling the motor shut off but with the clunking sound you're hearing I'd guess its the belt.

Hi The noise you are hearing is coming from the baffles inside the drum. These are attatched to the drum with screws from the outside of the drum. Something as gotten inside these baffles and causing the moise.
Remove the front ot top panel (Depending on what model) and take the screws out so the baffle releases.
I hope this helps you. Please let me know if I can assist you further.

Vic

Take off the back panel of the dryer and look at the motor and belt turning the drum. There may be something caught on the drum and is pinned in place causing the noise. The motor could be loose on the platform and needs to be tightened. It is probably something physical and seen causing the noise.

does your dryer have a plastic glide on the drum or is it on the felt if some one gave you the wrong one that would make your problem worse there is two different types for that dryer