I recently learned about spring mounts. These are used often in industrial equipment to reduce or eliminate vibration from the equipment like cooling towers, chillers, HVAC units, generators, pumps, and other types of equipment. Housed floor mounted spring isolators can have springs with up to 2" deflection. The bottom housing incorporates elastomeric ribbed rubber pad to prevent the vibration going downwards from the structure.
Here is a Z mount which is described as:
Z - Spring Mounts: 1" Deflection Z series mounts provide an excellent isolation from critical vibrations and efficiently protect structures from structure born vibrations.
Air conditioning equipments, compressors, air handling units, centrifugal fans, pumps, chillers, and applications where low-frequency isolation is required.
Considering it says "structure born(e) vibrations" (sic): "structure borne sound" is defined as:
Structure-borne sound results from an impact on, or a vibration against, a part of a building fabric resulting in sound being radiated from an adjacent vibrating surface. A typical example of structure-borne sound is footsteps on a floor which can be heard in a room below.
So, the opposite of my intent, but could it work the other way around?
Here is an A1 mount:
A1 - Spring Vibration Isolators A1 series 100/140 mounts provide excellent isolation from critical vibrations and efficiently protect structures from transferring vibrations. Model A1-100 has 1 " deflection while model A1-140 has 2" deflection.
Air conditioning equipment, compressors, air handling units, centrifugal fans, pumps, chillers, and applications where low-frequency isolation is required.
This one is to 'efficiently protect structures from transferring vibrations', seems similar to the Z mount, but could it work to protect the structure itself from vibrations being transmitted to it (originating outside the structure)?
I tried quality antivibration pads (multiple layers with rubber), and while they have some minor benefit, I still feel my bed shaking from a train about 0.8 miles away which wakes me up nearly every night. I also have a memory foam bed, so that does not help (it does in fact help over a spring mattress, but I still wake up).
I want to completely eliminate this vibration in the easiest way possible. The house and the ground are all obviously shaking. While I have done extensive research in soundproofing over the years and understand how to prevent sound and airborne vibration (from bulding a room within a room), I also need to eliminate the low-level shaking caused by the train.
The shaking is quite low. For nearly 2 years I did not realize it was the shaking of the train causing me to wake up. I have finally pinned down this as the cause. Before, I did not realize the vibration was even occurring, I though my heart was pounding from being awoken, but now I realize this shaking is actually the train, not my heart. Occasionally there will be a strong shake which I thought was a door slamming, but in fact it was the train shaking the floor.
What I don't know is if it works to isolate a structure from seismic activity - that is, I am calling the vibration from the train "seismic activity". I'm assuming it's a low level shaking, and need something that will eliminate this vibration. I plan to move in 1 year, but may not need to if I can solve this issue.
I am working on building a totally soundproof room, but now that I know the primary cause is this shaking, I need to be able to completely isolate a platform from this shaking. I can still build the soundproof room for total privacy, but it's in vain if I don't eliminate the shaking.
How can I eliminate this shaking (on my bed only or my soundproof room within a room only, NOT the entire house), and will these industrial spring mounts work? I'm willing to spend a few hundred for 4 of these mounts under the platform if it will solve the issue.