Multiple issues can cause a dryer to vibrate and make a lot of noise from an overloaded dryer to a defective component.
Dryer vibration on floor.
A damaged idler pulley idler pulley bracket or idler pulley tension spring could.
If the contents of the drum check out okay then a bad drum support roller could be causing a thumping noise.
Step 1 check if it s level.
My again non physics expert mind s theory is that this spreads the vibration load out to more planes points of contact.
There are several ways you can complete this task in a short time for little money.
If it s not possible to add bracing as described you can place a 5 8 or 1 inch sheet of plywood under.
If a stackable washer dryer unit is vibrating it may not be level.
Regardless of the specific problem vibration is definitely a problem that you ll want to address since the movement can cause damage to surrounding walls and floors as well as the dryer itself.
I haven t tried this yet.
Noise from the dryer often means that a hard object is clanging around inside the drum the zipper on a sweatshirt change left in a pocket your phone.