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Posts Tagged ‘Simulation’

Olympic Weightlifting Gets Drop Tested with SOLIDWORKS Simulation

Monday, August 15th, 2016

Ever wonder why rubber weights are used in Olympic weightlifting, but iron plates in most gyms?

We did. So, we looked into it.

The World’s greatest athletes demonstrate what it means to push the boundaries of human potential at each Olympic Games. In Olympic weightlifting, for example, new records are being set every year. Much is said about the athletes and how they challenge their limits to achieve new heights, but what about the equipment?

Weightlifting Equipment

  • Has it always been the same?
  • What kind of stress occurs when the bar is dropped?
  • How could pushing the boundaries of design enable athletes to achieve more?

At GoEngineer, these are the kinds of questions that keep us up at night.

Here’s what we found;  changing the material of the weights, changed the sport of weightlifting.

See our Simulation FEA Drop Test

Weightlifting has been an Olympic event since the very first Olympics in Athens in 1896. Back then, the bar and the plates were made out of iron. The rules required athletes to gently return the weights to the ground. This obviously wasn’t possible when an athlete was going for a max effort lift, and would miss.

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Batman v Superman – Scientifically Speaking, Who Would Win?

Monday, March 28th, 2016

Batman v Superman – Who will win the battle of the ages?

Batman v Superman: Dawn of Justice hit theatres worldwide.  Previews clearly show Batman holding his own against Superman. As an engineer, I’m a Batman fan at heart. I want to believe that the Caped Crusader will ultimately defeat that Kryptonian. So, let’s take a look at this matchup and use engineering technology, all available to Wayne Enterprises, to devise a plan of attack.

Movie fans and comic geeks will all have their opinion on the battle of the ages. But what does science have to say? Read on…

 (Source: Warner Bros.)


(Source: Warner Bros.)

 

SOLIDWORKS Simulation – Frequency Analysis of Tensioned Guitar Strings

Monday, February 1st, 2016

SOLIDWORKS Simulation is powerful.  Using this tool, I will demonstrate the correlation between SOLIDWORKS Simulation FEA and the solution of a theoretical equation through the analysis of a guitar string.

Setup
In this setup, a single guitar string is restrained on both ends. Restraining the string allows it to reach fundamental frequency, which is 1 half wavelength along the length of the string.
GS1

The setup will utilize beam elements for the string as it is long and thin. One end will be fixed in the radial, axial, and circumferential directions, while the other end is fixed in only the radial and circumferential directions. On the free end, a variable force will be applied to observe the change in fundamental frequency on the string.

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CFD for the Common Man

Thursday, March 5th, 2015

hot-potato30 years ago, Computational Fluid Dynamics was a topic reserved for PhD analysts or research groups at Universities. Fast forward to 2015 and CFD is accessible on the laptop (or even some tablets) for any engineer with SOLIDWORKS CAD. When we classically think of CFD, applications such as air flow over airplane wings or water flowing through a pipe come to mind. While these quintessential studies were the foundation of the development efforts, we can also study many common everyday scenarios.

Earlier this week I was cooking some fish and vegetables (admittedly both were from a frozen bag). One of my main frustrations with the particular vegetable blend that I used was that the potatoes never come out quite right. Green beans…perfect! Fish fillets…perfect! Potatoes…cold in the middle.

Time to put on my engineering hat! The fish is sliced into thin fillets and the green beans are long and slender. Both of those geometries lend themselves to relatively high surface area to volume ratios when compared to the chunky potatoes. If only there was a way to figure out how long I should leave the baking sheet in the oven without forcing myself to eat fish for the next several weeks.
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