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manufacturer. In these cases, the actual detailing of
the vibration isolation design should be included
in the construction drawing set. These details will
help ensure that the practicality and vibration transmissibility targets will function coherently with the
Vibration isolation tables and workstations can
satisfy cleanroom and contamination standards for
smaller, lighter equipment. Local equipment isolation such as air tables provide isolation primarily
in the vertical direction, but they have limited horizontal isolation capability. Air table systems amplify
vibrations in the range of 1.5 Hz to 3 Hz due to the
natural frequencies at which air tables resonate.
There are several techniques that reduce these resonant peaks, but the best design is when concerns
like this have been anticipated and all limitations
have been addressed.
Floating slabs can be recessed into the base
building slab and aligned to finish flooring. The
complexity of floating slabs installed on upper levels is by far easier during the design phases than
after the building is complete.
In some cases, isolation cabins with vent-
ed exhaust systems in compliance with clean-
room standards completely enclose the MVSE.
Accessibility to all functions, from all directions,
should be considered.
Cleanrooms have stringent criteria that are
widely recognized. Due to the speed with which
technologies develop today, the importance of identifying complete vibration criteria for each ultrahigh vibration-sensitive device during early design
phases is vital to the successful outcome of the project and budget.
As the president and founder of Metropolitan
Acoustics, Felicia Doggett brings over 28 years of
experience to the firm. Felicia’s expertise in architectural acoustics and vibration monitoring continues to
be an invaluable resource to her clients.
Sooch San Souci is Senior Consultant with
Metropolitan Acoustics. Sooch brings over 30 years in
the fields of acoustics and vibration. At Metropolitan
Acoustics, Sooch heads the vibration monitoring
and diagnostics department developing proprietary
software and ultra-low noise hardware allowing for
monitoring in real time. firstname.lastname@example.org;