Slow Down

Slow Down

All I’ll bet “Slow Down” isn’t an expression you hear much in your business.  I dream of a day when a customer tells me, “Slow down, we really don’t care when you finish your design.”  I can’t get you more time on your...
I Feel the Need, the Need for Speed

I Feel the Need, the Need for Speed

In my humble opinion, the Movie Top Gun is one of the best movies of all time.   One of the best parts is when Tom Cruise says “I feel the need, the need for speed”.  It’s not just a great line, it also applies to many stack designs.  More speed...
Welcome to our Damping Pad

Welcome to our Damping Pad

When a vortex shedding problem exists on a stack, sometimes the most economical option is a damping pad. What is a damping pad? A damping pad is a preformed laminated fabric pad of a manufactured material composed of layers of tightly twisted, closely woven...
How to Determine Damping

How to Determine Damping

We can all grasp the physical attributes of a stack such as the height, weight, diameters, etc.; however, what is the stack’s structural damping?  Does MecaStack estimate the damping of the stack?  Is there any harm in just arbitrarily changing the damping...
Getting Twisted about Helical Strakes

Getting Twisted about Helical Strakes

If you have a vortex shedding problem on a stack, then in some cases helical strakes are your best option; however, there are other cases where helical strakes are not the best option. When not to use Helical Strakes? If there is another stack (or tall structure) that...
Take Vortex Shedding Seriously

Take Vortex Shedding Seriously

Stack When I was a new Engineer working for an equipment manufacturer, I can say that I didn’t have a healthy appreciation for wind Induced vibration (vortex shedding).  I worked for an equipment manufacturer who won and lost jobs based upon our cost, and...