Call for Artists, Making Money at Juried Art Fairs, Craft Shows and Festivals
Glad to hear it went to a contributing member of this community, Richard. Flourish has wonderful products and I see there were storms this past weekend in Omaha that brought down the tents:
I look at the photos posted to see who/what was still standing. When it comes to weights, mass is important but is placement to gain the best effect. That's the engineering side of my brain working.
No weights will stop a really bad storm. if at all possible do a weather check before you close you booth for the night so you can be prepared. Button up, zip up, pack up, tie up, lower the canopy and hunker down. This really bad booth destruction is a light weight tent, so not surprised to see it destroyed. You can see the larger tent on its left standing well.
This show is three days long, so the setup should take that into account. Prepare for multiple days. The longer the show, the more we would add weight, bungee things together, and prepare for any eventuality. A one day show might bring out the easy up, but we'd still weight it, maybe bungee the heavy bins to the legs.
I never understood cement filled pvc hanging from a bungee.
Yes, it's a hard sell to artists that placement is just as important as mass. How many vertical elements do you see in a steel bridge?????
Richard: Your post made me think about weight placement. I’m not sure what you mean about vertical and horizontal components and how bridges relate to canopies. But here are some of my thoughts about canopy weights:
As an engineer, Richard, what do you think about the above analysis?
I believe some of the terminology is not being assigned correctly.
If we were to use them more accurately, weight would have nothing to do with it for weight is merely a relational measurement dependent upon our gravity.
Perhaps we should be using "mass"?
An example being your last scenario with the Race car.
They do rely on weight.
How? you ask... I knew you would :-)
They do not increase the mass of the car. However by designing the aerodynamics of the vehicle, including the scoops and spoiler, it causes far greater downward pressure on the vehicle. Akin to what would happen with greater mass. or what is aforementioned as weight. It is this far greater "weight" that allows the tires to generate greater friction with the track.
In this way, greater mass hanging from our tents, results in greater weight. results in greater friction. Results in less movement both horizontal and vertical.
What is the coefficient of friction to sideways force?
Also once the movement starts it does not continue. Law of physics states an object remains in a state of rest or unrest until acted upon by outside forces.
A) The tent is not in a vacuum.
B) There is gravity acting upon it.
C) There is friction acting upon it (even though movement has started, friction is still applied).
D) Air currents may not be in a single plane or path.
Hence, once it starts moving, the weight / mass will cause friction with the ground resisting the inertia, thereby reducing the effects.
Perpetual motion does not apply.
The comparisons to objects in water are good however different rules apply, due to the difference in properties of the two substances.
How much would the same sailboat move if placed upon dry land with the exact same sail area and weight?
A simple, non scientific test is this:
Setup your tent with no weights nor stakes.
Now push a corner post 12" in any direction parallel to the ground.
Now restore to original position and add 75 lbs to each corner (what I user at shows).
Now push the corner post as before. Hugh difference.
Ground stakes and plenty of weight, as well as wind pressure releases on the canopy will help.