Thread 16777692

This is a bike designed with topology optimization

Good luck fixing it.

>>16777692 (OP)
They shoulda gone for internal structure optimization and better weld spacing.

>>16777692 (OP)
dont like it

>>16777702
>>16777717
>>16777723
you vil ride ze topologically optimal bike

>>16777725
But I don't CARE about topology. I want structural integrity.
>they did function follows form
That shit is modeled on a motorcycle's areoshell. With holes in it.

>>16777692 (OP)
>when i saw paulie next to that frame i thought he'd lost his marbles

>>16777725
give me a late 90s hardtail frame any day over that gay monstrosity

>>16777725
I will not. I WILL enjoy the triangular beams.

>>16777692 (OP)
This is the one good use for AI.

>>16777692 (OP)
>FEA using properties of cast aluminum
>print using laser sintering
>bike structure shears immediately
Many such cases.

>>16777702
I've never seen a motorcycle frame break unless run over by a fucking semi. Yes, e-bikes are fucking motor cycles and I'm tired of retards pretending they aren't.
>Hurr-de-durr and electric motor on a bike isn't a motor bike because than I wouldn't be able to take it on trails that ban motorbikes

>>16777692 (OP)
Ebikes are a menace. They need to be regulated into oblivion and fuckers need to be banned from taking them on walking trails.

>>16777889
>Yes, e-bikes are fucking motor cycles and I'm tired of retards pretending they aren't.
No, they aren't, regardless, you should be able to ride motorbikes on trails, even semi-trucks if you want.

>>16777889
>Ebikes are a menace. They need to be regulated into oblivion and fuckers need to be banned from taking them on walking trails.
You need to be deported to China immediately and banned from ever returning to any western country.

>>16777903
>A bike with a motor isn't a motor bike
You're fucking retarded.
>>16777905
>Nip nong ching chang chong.

Luckey for me legislation is moving my direction.
Next step: banning them from all national parks.

>>16777692 (OP)
These things get designed with simulations. The simulation will show you what sections of the metal have low stress and which parts have high stress, you can beef up the stressed areas and cut metal from the regions with low stress. You do so for expected loads, this optimization always creates weak modes for stress types you dont expect.

>>16777929
There are five types of fatigue:
Twisteng
Bending
Shear
Tensile
Compression

FEM/FEA isn't good at modeling them all at once.

>>16777728
anon that's the entire point. It's only leaving the parts you need for structural integrity

>>16777692 (OP)
There are no pedals so I assume you put your feet on those little nubs? Seems like it should have adjustable foot pegs.

>>16777946
if you look closely you can see that the design is an electric motorcycle with mountain bicycle forks
lets all have a turn designing an electric motorcycle with mountain bicycle forks mine is going to have smaller wheels for more torque and a better gear ratio (the motor is going to be much faster than the wheel needs to be)

>>16777949
i think i want chopper handlebars and also a better seat too for comfort and a car battery so it can cycle much more further than this one

>>16777950
now the OP design is not very good because the user is expected to lay backwards (the position of the feet is expected to be in front of the seat) and forwards (the handlebars are too low and too far from the seat) the design is ugly and derivative of motorcycles in a way which i find to be offensive (casting the image of a fuel tank is obstructing the function of your bicycle) (there is no need for a fuel tank) i would start by changing the whole thing

>>16777946
ye they focused on design rather than ergonomics, still interesting concept.

>>16777903
of course they are. if it was powered by a small ICE you'd agree, but for some reason you think a powerful electric motor and 50mph isn't a motorbike.

>>16778045
I think you should stay off trails so you don't get hit by electric bikes, they should totally go anywhere since they don't emit sound or chemicals which is all that matters.
plus they don't even need your trails they can make their own, just stay off them so you don't get hurt by them, pretty simple.

>>16778049
oh YEAH?

>>16777692 (OP)
>topology optimization
the fuck does that even mean?

>>16778402
it means optimizing holes

>>16777692 (OP)
how is this better than just using a generic bicycle frame?
looks like its heavier, just to trace a motorcycle silhouette and if the battery runs out, you can't even pedal

>>16778407
I know what topology means, I know what optimization means, I don't know what topology optimization could possibly mean in the context of a bike.

>>16778402
it's got electrolytes

>>16778422
>hurr durr I'm a retard
not my fault

>>16777945
>optimize the design
>by starting with the wrong shape
I don't think you understood me.
I am now worried that the standard bike frame is superior.

>>16778450
its my fault hes a retard im sorry. you see we really wanted to do a new blacked episode where anons mom gets railed by the entire blacked cast while she was pregnant. sadly it never made it past editing because mr nosenberg said the christian fanbase wouldnt want to see their BBCs hitting the womb and causing brain trauma to the fetus.

>>16778492
>by starting with the wrong shape
how do you know it's wrong?

>>16778576
>aeroshell
>with holes in it
>How do you know it's wrong?
I'm going to assume you've never seen a bicycle in your life.

>>16777889
>e-bikes are fucking motor cycles
I’m not surrendering money for road tax; it’s theft. Don’t delude yourself thinking the government wants to ban these things over photo safety; it’s enraged it cant currently tax people for using this useful mode of transport.

>>16777889
>Printing press/Radios/TV/Internet are a menace. They need to be regulated into oblivion and fuckers need to be banned from using them without state approval.
Statists are the most evil destructive person imaginable. Where the robber-baron’s lust and greed can satiated and short respite from his wrongs can be felt, the statist does not stop. Whether it’s a misaligned morality leading the statist to believe their tyrannical horrors are good, or they conduct their actions with full knowledge and are distilled demonic evil, I’m uncertain.

>>16778045
>if it was powered by a small ICE you'd agree
Nope. Before socialist busybodies regulated away creativity and innovation, western nations were the industrial backbone of the planet.
If our ancestors had your regulatory mindset, the industrial revolution would’ve never occurred; imagine trying to invent the mine dewatering steam pump when you must first apply for a boiler license when the governmental department for such things doesn’t yet exist!
Heres some examples of ICE enhanced pedal cycles, some even had hub motors! Imagine how much they improved the lives of working class people who couldn’t afford a car but still needed to commute a distance. Stopped because of scum like you.

>>16777889
>They need to be regulated into oblivion and fuckers need to be banned from taking them on walking trails.
Wrong.

They need to be shot in the head, no due process necessary.

>>16778664
>Before socialist busybodies regulated away creativity and innovation, western nations were the industrial backbone of the planet.
I think it has more to do with socialist busybodies regulating away 16-hours long workdays for children below 10 paid a product wage in company scrip. Really takes the back out of that industrial backbone.

>Imagine how much they improved the lives of working class people who couldn’t afford a car but still needed to commute a distance
Imagine the poor, unfortunate billions of souls who had their commutes improved by a bus line, instead of a transportation mean that is guaranteed to leave them with a broken backbone if used on shit roads. You love unregulated tuk tuks? Then move to Bangladesh.

smaller wheels would be far better, bicycles with smaller wheels will have more torque and require a gearbox from electric motor to take much less shit from being used (the motor is going faster than the wheel needs to go in factors of hundreds of times) the smaller wheels mean you can use a smaller gear ratio inside and also smaller wheels requires less force to move from standing and accelerate faster + better up hill
consider converting a BMX instead of this mass effect zorb gay retard HALO 2 autistics gay shit OP you can put the hybrid forks on the BMX no problem and you can still use the ceramic disk brakes on the BMX wheel because the disk breaks mount to the center of the wheel (front brakes are dangerous)

>>16778766
if these freaks can zorb around on their electric unicycles and scooters i can have a special motorcycle no problem
you dont even need that many watts to go over the speed limit you could register the thing as one bigger than moped and jack a 10000 watt (12HP) motor in there this bicycle is going at fucking lightspeed

>>16778664
so no regulation of the road at all then? sounds great. have you ever been in places where its more like that?

>>16778766
the only thing with small wheels is that they feel bumps and stuff a lot more than larger wheels. if you're staying on good roads then sure but otherwise you feel every rock and dip.