Recent content by fanofakirakurosawa

Thank you so much Tom I really appreciate your time. But there is one problem, when I explained this to my friend he told me that the starting point is at 180° not at that >90° angle. It seems there was a change of plans. They decided to change the starting point because the gate would block the...

Your welcome Brian!

I'm sorry for not giving context, my fault. Sigma is stress tension, F is the tension force and A is the area of the cross-section. Then the third equation is the density. It's mass over volumen and volumen is A (area) times L (large of the wire). Now you need to determine what is μ. And then...

Rate of decay (λ) depends on the b/m relation. You are confused about the value of the initial energy, which is: and the equation of energy in terms of time t: edit: deleted...

Yeah, that is the sequence due a limited space. Sadly there are no other options.

It's a video uploaded to Google Drive. Here's the link: drive.google.com/file/d/1DfO0TQuo-9SZpwmLib1KK8SX3pZyK8kg/view?usp=drivesdk

$$ V = \sqrt{\frac{F}{\mu}} $$ $$ F = \sigma A $$ $$ \delta = \frac{m}{A L} $$ edit: deleted some part of the reply due I provided the entire solution

Only the floor, the ceiling is too high. But it's possible to build some high structure. The door is 5 meters tall

Source power: electric motor. Gates are 1 m (3,3 ft) wide. Every fold weighs around 150 kg (331 lb). The time isn't defined yet.

It's not for living beings. Specific application. And it can't operate if there are persons close to the gate. Also it will operate at a low velocity.

It's for a very specific furnace. The sequence it's peculiar due the limited space.

Sorry, I forgot to attach some sketch. Here's a video of how the gate should move. Just a quick representation of the sequence.

Sadly I can't get that book since I'm not from US and I can't buy some items from Amazon. Anyway I borrowed a book from my local University's library, it's called Design of Machinery by Robert L. Norton. I'll start from there. Thank you anyway.

7 samurai, yours?

Thank you