Vibration of Washing Machines on Wood Framed Floor
Vibration of Washing Machines on Wood Framed Floor
(OP)
Hello all,
I am tasked with evaluating a laundromat for changing over to front loading washing machines. The existing top loading machines are supported on a raised floor (wood joists on wood beams on wood posts). The new front loading machines have an inherent problem with vibration since the axis of vibration is rotated and now causes a hammering effect on the flexible support.
So I understand from my old vibrations class that I have to keep the natural frequencies away from each other (the floor vs. the machine)...
Has anyone calc'ed this kind of problem? I can't imagine this is uncommon. Am I right in thinking of solutions being to increase stiffness of the floor, or proposing vibration isolators between the two?
Any help would be appreciated, thanks!!
I am tasked with evaluating a laundromat for changing over to front loading washing machines. The existing top loading machines are supported on a raised floor (wood joists on wood beams on wood posts). The new front loading machines have an inherent problem with vibration since the axis of vibration is rotated and now causes a hammering effect on the flexible support.
So I understand from my old vibrations class that I have to keep the natural frequencies away from each other (the floor vs. the machine)...
Has anyone calc'ed this kind of problem? I can't imagine this is uncommon. Am I right in thinking of solutions being to increase stiffness of the floor, or proposing vibration isolators between the two?
Any help would be appreciated, thanks!!





RE: Vibration of Washing Machines on Wood Framed Floor
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RE: Vibration of Washing Machines on Wood Framed Floor
yes, I have calculated this sort of thing many times. I dare say it is even included as an example in Rao or Thomson.
Cheers
Greg Locock
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RE: Vibration of Washing Machines on Wood Framed Floor
IMHO
Tobalcane
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