Amusement park ride collapse in Saudi Arabia

[kjoiner]

A ride in Saudi Arabia broke injuring a over 2 dozen people

 

[LittleInch]

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.

 

[Garbage1]

That sounded like failure of composite material arm?

 

[kjoiner]

Sadly, it looks like some of the people on the ride took a direct hit from the counterweight as it swung down and hit the ring with riders.

 

[IRstuff]

Looks more like the mount's fasteners gave way. The arms appear to be attached to the hub with gussets, and one of them failed.

 

[Garbage1]

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.

https://twitter.com/x/status/1950890819751403703

 

[MintJulep]

The chunk of missing tube noted be @Garbage1 matches the outline of the purple gusset, because stupid weld design.

 

[IRstuff]

better view showing only gusset sections missing

 

[TugboatEng]

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.

 

[Garbage1]

Ok it does appear there is steel tube inside of cosmetic cover, and it failed at the end of the gusset bracing. Appears stub tubing remains in between gussets.

 

[MintJulep]

This seems to be the manufacturer.

Website https://www.ridesandfun.com/en/chi-siamo.php

Facebook post about the failed ride

https://www.facebook.com/permalink.php?story_fbid=664196189041602&id=100063536801249

Possibly the actual ride that failed at the factory in 2020.

https://www.facebook.com/video.php?v=123487212744169

Smaller version at the factory

https://www.facebook.com/video.php?v=1047780412742626

 

[Bendolfc]

Seems they want to hide things...

 

[Garbage1]

This seems to be the manufacturer.

Website https://www.ridesandfun.com

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 of tube interface between tube and rotating sleeve.

The next video shows yet another version of plate interface design between tube and rotating sleeve interface.