A constant vibration? Very unusual. You must mean a hammer or thud upon start or most likely shut off. You cant dampen it by pipe suppport but must eliminate it by reducing the FLOW rate at the time of shut off.
You can raise the shut pressure considerably to achieve it, or install a valve that reduces flow, or add a CSV valve which greatly reduces flow on shut off though with a cost of added run time and some power use. It is also possible to reduce hammer by using adjustable pressure relief valves set at just above shut off pressure: they will "leak" or open and reduce pressure surges upon shut off.
I have a water system that has a static pressure of 130PSI at the well. It pumps uphill 1/2 mile and has no tank at the bottom. Flow is low, but there is some pulsation or hammer on shut off. A few pressure relief valves blow off the surge on shut off and protect the piping. A small bladder tank would however be preferable in my case, but the pressure is too high for most that are available and PRV's are cheap and adjustable.
Again, if its a true constant vibration, you have a mystery condition.