the inertial response always lags in single mode systems.
So the shock force is applied at t=0, with unspecified rise time (rate of rise), but fast enough to excite higher order modes, before the force is removed.
You'll need to consider what your customer is trying to achieve.
Sounds like you are using heat mats to provide heat tracing of your piping or duct work.
At issue: thermowells are intrusive pipe fittings used to measure the process fluid temperature, whereas if you are trying to control the...
You'll have to explain what your customer means by "heating elements," and the purpose of the measurements.
You may need access to the piping layout drawings to sort out your question.
You'll need to review you process flow diagram and the material-energy balance calculations for your process.
It is a bit more complicated than a spreadsheet calculation.
Sulfur In = Sulfur Out
The problem is that both sides of the equation consist of several components and chemical form.
Clarence Zener, formulated a quantum mechanical model of elastic damping in 1940, and offered experimental evidence to support his calculations.
Damping has to do with the nanometer scale imperfections in the material, that are affected under stress-strain conditions.
You'll need to check where your steam traps are located along your line, to insure proper heating the entire length of the line, as well as temperature monitoring.
The density of CH4 os drastically smaller than CO2, and quickly moves into the upper atmosphere, where solar ionization is much more intense. As a consequence it is converted to CO2 and sinks closer to the earths surface.
Free-Free B.C. for slender beam:
fi=Lambda^2(EI/m)^0.5/(2 pi L^2)
Lambda(1)=4.7304074, etc.
Courtesy "Formulas for Natural Frequency and Mode Shapes." No meaningful assumptions, other than gently taping the beam while in free-fall.
OP:
"Not sure a backpressure regulator will work since the upstream pressure is pretty constant"
However, as you have explained the pressure regulator cannot control the pressure.
You can set the regulator but without downstream containment or partially restricted flow, it cannot maintain...
Pressure regulators only work with resticted or zero flow downstream.
If your sripper operates at some pressure, its gas / vapor discharge requires a back pressure regulator compatable with the fluids involved.