Specifications for elephant-resistant steel poles

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Re: Specifications for elephant-resistant steel poles

Postby Matthew Ellard » Tue Jun 20, 2017 11:37 pm

You have my absolute support for your venture and activities, however this is the wrong forum. This forum is is populated by "couch potato" skeptics and not engineers. You really need to find an engineer and someone who can donate the final camera-hide product to you in exchange for promotion.

My only weird suggestion is to contact director of elephant management at Taronga Park Zoo in Sydney, Australia. They built a larger elephant enclosure about seven years ago and may have the specifications for the rubbing poles they put for elephants inside the enclosure. They may be able to steer you in the right direction.


https://taronga.org.au/about-us/contact-us

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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Tue Jun 20, 2017 11:51 pm

https://www.physicsforums.com would be a better starting place.

However, have you queried universities in Africa? Witwatersrand perhaps?
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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 12:56 am

Easy peasy... light gage 20? steel pole, 6` high with a steel platform on top (4 legs) to hold a honeybee hive.

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Re: Specifications for elephant-resistant steel poles

Postby Matthew Ellard » Wed Jun 21, 2017 1:02 am

TJrandom wrote:Easy peasy... light gage 20? steel pole, 6` high with a steel platform on top (4 legs) to hold a honeybee hive.
Frankly, the obvious solution is to simply give the elephants their own cameras and tell them to take their own photos. It is incredibly rude that these elephants keep inviting a photographer around and keep destroying his equipment. :roll:

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Re: Specifications for elephant-resistant steel poles

Postby Gord » Wed Jun 21, 2017 1:43 am

I had no idea that elephants could eat steel poles.

See, I learnt something today.
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Re: Specifications for elephant-resistant steel poles

Postby Gord » Wed Jun 21, 2017 1:43 am

Ohgodihavetostopwatchingfamilyguy!
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Re: Specifications for elephant-resistant steel poles

Postby Flash » Wed Jun 21, 2017 4:49 am

Shoot the {!#%@} elephants!
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Re: Specifications for elephant-resistant steel poles

Postby Poodle » Wed Jun 21, 2017 5:06 am

I can't help getting the feeling that this is an analogy for some claimed UFO/ET event. I'll be charitable and assume I'm wrong. For now.

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Re: Specifications for elephant-resistant steel poles

Postby ElectricMonk » Wed Jun 21, 2017 5:09 am

Not that I know much about the subject, but...

it seems to me that the more resistant you make the camera casing, the more sport it will be for the elephants to mess with it. Unless you go to Elephant cage levels it might be impossible to secure it in the field in a way that assures that the camera angle is maintained.
Is hiding an option? Or observation at times when the elephants are having their pedicure (should take a while)?
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Re: Specifications for elephant-resistant steel poles

Postby scrmbldggs » Wed Jun 21, 2017 6:04 am

Spoiler:
.

Lard, save me from your followers.

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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 6:07 am

:lol: :lol: :lol:

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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Wed Jun 21, 2017 11:25 am

If you're not too worried about cost you may want to look at heavy gauge pipes. Plant them in concrete and fill with same. I saw one of those ignore a Miata hitting it at high speed once. The Miata ... suffered.
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Re: Specifications for elephant-resistant steel poles

Postby OlegTheBatty » Wed Jun 21, 2017 4:57 pm

Suspend the cameras from balloons with 3 guy wires to keep the balloons from drifting.
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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 5:05 pm

OlegTheBatty wrote:Suspend the cameras from balloons with 3 guy wires to keep the balloons from drifting.


If he tied those balloons to the target species tails he wouldn`t need to worry about drift... :kit:

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Re: Specifications for elephant-resistant steel poles

Postby OlegTheBatty » Wed Jun 21, 2017 5:12 pm

TJrandom wrote:
OlegTheBatty wrote:Suspend the cameras from balloons with 3 guy wires to keep the balloons from drifting.


If he tied those balloons to the target species tails he wouldn`t need to worry about drift... :kit:


You would still get some lateral drift. Now, if the guy wires went to 3 other leopards' tails . . .
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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Wed Jun 21, 2017 5:26 pm

Williamhdc wrote:This is probably simple for an engineer, but I’m a zoologist and analytical chemist and so I would rather ask those who know. I have camera traps out on the African bush, that are monitoring the responses of leopards to artificial scents. The cameras are in steel boxes to protect them from elephants, the boxes are bolted to brackets 150 mm long and the brackets are bolted to steel poles at a height of either 500 or 700 mm above ground level.

The poles are 40 x 40 mm mild steel angle, either 2mm or 3mm thickness. The poles are driven deeply into the ground. The mechanical problem is that elephants push the cameras over; they bend the 2 mm thick angle through 90 degrees at ground level, or twist it through 180 degrees. They bend the 3 mm thickness through 45 degrees.

I have videos from the cameras as they are being wrenched around and most of the work is done by the elephants’ trunks, with some kicking and stamping once the pole is bent over. Elephants are alleged to be able to lift 350 kg with their trunks. How hard the they can kick is an open question. So my question is; what size and gauge angle iron or square tube would I need for a pole that could withstand twisting when 350 kg is applied sideways to a 150 mm lever bolted at right angles to the pole, without exceeding its elastic limit (camera aim is critical so the pole needs to recover after an elephant has tried to bend it) . And, similarly, what pole, standing 1 m out of the ground, could withstand being pushed at the top by an elephant – say 500 kg sustained force.

Thank you.

Reposted to Physicsforums.com for you.
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Re: Specifications for elephant-resistant steel poles

Postby Nikki Nyx » Wed Jun 21, 2017 5:47 pm

Matthew Ellard wrote:
TJrandom wrote:Easy peasy... light gage 20? steel pole, 6` high with a steel platform on top (4 legs) to hold a honeybee hive.
Frankly, the obvious solution is to simply give the elephants their own cameras and tell them to take their own photos. It is incredibly rude that these elephants keep inviting a photographer around and keep destroying his equipment. :roll:

Apparently, they're stealing selfie sticks too.
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Re: Specifications for elephant-resistant steel poles

Postby Poodle » Wed Jun 21, 2017 9:08 pm

That's actually a grey caterpillar defending itself by sticking the nut on a marauding stag beetle.
NOTE: This may not work in the USA - I don't know if they have stag beetles there.

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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 10:03 pm

I once found an eastern hercules beetle in Missouri - but don`t believe there are native rhinoceros beetles - which I have aplenty here in Japan.

This is a male, while the one I found was a female - without the clippers.

http://www.insectidentification.org/ins ... les-Beetle

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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Wed Jun 21, 2017 10:19 pm

Weird that OP posted this here and posted at Physicsforums months ago.
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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 10:25 pm

Troll?

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Re: Specifications for elephant-resistant steel poles

Postby OlegTheBatty » Wed Jun 21, 2017 10:26 pm

Elephant trying to scam more cameras?
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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Wed Jun 21, 2017 10:30 pm

TJrandom wrote:Troll?

Long thread over there, didn't dig into it. Weird topic to start trolling with.
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Re: Specifications for elephant-resistant steel poles

Postby TJrandom » Wed Jun 21, 2017 10:36 pm

Gawdzilla Sama wrote:
TJrandom wrote:Troll?

Long thread over there, didn't dig into it. Weird topic to start trolling with.


Maybe just one oar in the water... or maybe thumped by one of them thar elifants...

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Re: Specifications for elephant-resistant steel poles

Postby Gawdzilla Sama » Wed Jun 21, 2017 11:46 pm

TJrandom wrote:
Gawdzilla Sama wrote:
TJrandom wrote:Troll?

Long thread over there, didn't dig into it. Weird topic to start trolling with.


Maybe just one oar in the water... or maybe thumped by one of them thar elifants...

"Oliphants, Mr. Frodo, oliphants! Nobody back home is going to believe this. {!#%@}, I need to make a video for Youtube!"
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Re: Specifications for elephant-resistant steel poles

Postby Gord » Thu Jun 22, 2017 4:28 am

Gawdzilla Sama wrote:
TJrandom wrote:
Gawdzilla Sama wrote:
TJrandom wrote:Troll?

Long thread over there, didn't dig into it. Weird topic to start trolling with.


Maybe just one oar in the water... or maybe thumped by one of them thar elifants...

"Oliphants, Mr. Frodo, oliphants! Nobody back home is going to believe this. {!#%@}, I need to make a video for Youtube!"

Thanks, Trump.
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Re: Specifications for elephant-resistant steel poles

Postby Nikki Nyx » Thu Jun 22, 2017 6:08 pm

Poodle wrote:That's actually a grey caterpillar defending itself by sticking the nut on a marauding stag beetle.
NOTE: This may not work in the USA - I don't know if they have stag beetles there.

:rotfl: Yes, we have them here.
What are the facts? Again and again and again-what are the facts? Shun wishful thinking, ignore divine revelation, forget what “the stars foretell,” avoid opinion, care not what the neighbors think, never mind the unguessable “verdict of history”--what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!
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