IRON MIKE'S TOUR
-- Computerized Shock Simulation with TSIS --
TSIS SOFTWARE
Because of the extreme high velocity of many shock transients,
and the high performance of our more sophisticated products,
Taylor Devices has developed our own software code, called
TSIS (Taylor Shock Isolation Simulation). TSIS can easily
handle the most violent of inputs at an extremely high
level of resolution. Plus, TSIS can fully model isolation
devices with non-linear spring and damping elements.
TAYLOR PULSE DATABASE
Over the last 40+ years, we have searched out and compiled
an extensive shock database. This data base includes virtually
every significant shock event of the last 100 years.
Our software has been fully validated by our customers
on full scale tests and by in-field experiences, using
shock isolation components built to operational parameters
defined by TSIS. These tests and experiences include wind
storms, hurricanes, surface and underwater explosions,
vehicle crashes, and earthquakes.
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THE ISOLATED OBJECT:
A 1,000 pound object, fragility limit is 15 g's. This
fragility level is roughly equivalent to what your computer
monitor can survive without failure.
THE INPUTS:
To keep the simulation easy to follow, we will assume
an input in the horizontal direction only. To show you
the wide range of our shock data base, we will designate
2 diverse input pulses:
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 PULSE 1 -- Our 1,000 pound object in a plywood
shipping box, being slammed into a concrete retaining wall (believe
it or not, this is a standard well documented test pulse from the
U.S. military).
 PULSE 2 -- Our object installed on a ship, subjected to the underwater
explosion of a World War II vintage moored mine, located 45 feet
away from the ship's hull.
| In our first simulation, instead of a
Taylor Devices' shock isolator, we'll use a standard rubber
shipping container mount, 20 Hz. frequency, 30 g's capacity,
10% damping. |
PULSE 1 
PULSE 2 
Pre-load (static centering force)
= 2,000 lbs.
Endload (static full stroke force) = 3,800 lbs.
Available Stroke = ±1.5 in.
Damping = 650 V exp.6 lb x sec/in
PULSE 1 
PULSE 2 
| As you've just seen, shock isolation with
Taylor Isolators is the best solution to these . . . . and
many other problems. Plus, we've seen that TSIS provides
prompt and accurate results.
For additional information, contact Taylor Devices' Web
Applications Engineer by mail, phone, or fax. Please have
as much data available as possible so that we may help
you promptly.
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