Articles

Default Sign

It’s not my Default

May 31, 2019
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It’s not my Default May 31, 2019 There is a feature in MecaWind that is seldom used, but can be very helpful. It’s a feature under the File Menu called “Save Current File as Default”. What does it do? When this feature is is selected, it takes the current file and sets it up as the…

Flare Stack Lift

The Next Big Thing in Lifting Lug Design

May 23, 2019

The Next Big Thing in Lifting Lug Design May 23, 2019 All structural design is important but verifying that the lifting lug design is adequate to lift a piece of heavy equipment might just be one of the most important things an Engineer can design. Engineers often design structures and equipment for extreme wind, seismic…

Transverse Periodic Forces at Frequency Fvortex

Take Vortex Shedding Seriously

May 20, 2019
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Take Vortex Shedding Seriously May 20, 2019 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 considering vortex shedding increased our…

Default of USA dollar currency concept photo

MecaStack Default File

May 14, 2019

MecaStack Default File by Chris Rosencutter | May 14, 2019 | Stack There is a feature in MecaStack that is seldom used, but can be very helpful. It’s a feature under the File Menu called “Save Current File as Default”. What does it do? When this feature is is selected, it takes the current file and sets it up as the…

ASCE 7-16 Cover

ASCE 7-16 Wind Changes

April 8, 2019
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ASCE 7-16 Wind Changes Apr 8, 2019 The ASCE 7-16 Minimum Design Loads for Buildings and Other Structures was released in the Summer of 2017, and some jurisdictions are starting to reference this standard. MecaStack has a built in calculator for ASCE 7 wind loads on the stack, but Meca also offers a program called MecaWind which calculates wind…

Example of Tuned Mass Damper

Tune up your next Stack

April 5, 2019
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Tune up your next Stack Apr 5, 2019 One of the most common problems encountered on a cylindrical stack is Wind Induced vibration due to Vortex Shedding. If you have never visually observed vortex shedding, watch this brief video and prepare to be amazed. There are a couple of options to address this problem, and this newsletter…