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Amusement park ride collapse in Saudi Arabia
- Thread starter kjoiner
- Start date
LittleInch
Petroleum
That's horrendous. Looks like the central hub has a fixed stub and the outer tube slides over it and was fixed in place.
All the video etc seems to be the same one and doesn't show the ends very well, but there seems to be two sections of the tube.
Maintenece and inspections are notoriously lax in htis type of industry unfortunately.
All the video etc seems to be the same one and doesn't show the ends very well, but there seems to be two sections of the tube.
Maintenece and inspections are notoriously lax in htis type of industry unfortunately.
- Thread starter
- #4
Watching all the frames slowly at the 11 second point in this video, you can see the flex of the tube as it rotates, and there is a huge chunk of the tube missing where the gusset was located. It appears to me it was not a fastener failure but rather material failure of tube, and the gusset and missing chunk of tube are still attached together.
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TugboatEng
Marine/Ocean
I don't think we can see any of the structure. The tube is a cosmetic cover. There must be some type of beam inside and that is where the actual failure occurred.
This seems to be the manufacturer.
Website https://www.ridesandfun.com/en/chi-siamo.php
Facebook post about the failed ride
Possibly the actual ride that failed at the factory in 2020.
Smaller version at the factory
Website https://www.ridesandfun.com/en/chi-siamo.php
Facebook post about the failed ride
Possibly the actual ride that failed at the factory in 2020.
Smaller version at the factory
From what remains visible from your post, it appears factory 12 seat test unit did not have the gussets and perhaps they were added due to factory test failure? Gussets may have just shifted the failure point location on tube?
The Twist and Sun 24 seat 360 degree is the model with pulled video's and information.
Gusset could have been added scaling 12 seat model to 24 seat?
Failed unit appears to be 24 seat model.
This video of 12 seater shows tapered section interface between tube and rotating sleeve.
The next video shows yet another version of plate interface design between tube and rotating sleeve interface.
Map of other locations of ridesandfun rides. Would assume other locations have the same ride that failed, and all versions should be closed and evaluated.
This confirms they are installed world wide.
Below is another manufactures version of 360 and it appears to be approximately 24 or so seats too. Notice on the blue arm, the increased moment of inertia and the stiffeners in the area of prime loading. Notice how far the stiffeners taper away from pivot axis, to prevent what happened in Saudi Arabia.
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Properly instrumented, the test should also tell you whether the actual stresses are consistent with those analyzed, and whether fatigue will likely manifest or not.
Yes. it shows you that the machine works, but not much about the failure that occurred.
I meant the kind of “test” in the video, which appears to be just running it to see it works.
I was thinking the ride was made by these guys, in case you want to buy one....
https://www.sinorides.com/360-pendulum-ride-faq-guide/
https://www.sinorides.com/360-pendulum-ride-faq-guide/
TugboatEng
Marine/Ocean
This made me laugh:
Now I want some amusement park ride scale bubble wrap. I could be popping for days.
Now I want some amusement park ride scale bubble wrap. I could be popping for days.
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