202 0 ,S P RI NG
P O R T F O L I O
Natural System and Biomime�cs Study LIU,JIA-YU
Issue
Experiment
Instruc�ons
＆
Detail
Biomime�cs
＆
Alligator
KEYWORD QUICKLY BUILD ＃JOINT ＃PUMP
＃
i Issue ＆
Biomime�cs
ISSUE
Refugees need temporary shelters that can Because for them, the hardware facili�es o
n be built quickly and strong, of the refugee camp are very important.
The issue I want to solve is the terrible environment of the refugee camps.There are too many refugees in the same place ,so resources are never enough.Like food, bath place even living place.Using rope and plas�c to make a rough tent is very common. This situa�on cause disease spread quickly in the camp.
HOW MIGHT WE...... How might we make refugees build their temporary shelter as quickly as a simple tent by using ina�on system? I choose alligators to achieve my concept.
Alligator’s Armor
-Protac�on -Flexible mobility -Temperature regula�on
osteodems
Alligator is a well-adapted living fossil covered with its armor.
This dermal shield consists of bony plates, called osteodems, interconnected by sutures and non-mineralized collagen fibers
non-mineralized collagen fibers, providing a dualfun�on of protec�on and flexibility.
inner porous core
Array
Connect
Force １０°
Different １０° a b
-compe��on -prey ２０°
２０°
-Maintain shape -Reduce fric�on
b°
b°
１：１
-Protec�on -Dig
６０－７０％ ９０％
Compare to other Rep�les who also has the armor, for example: turtles. In addi�on to being strong, alligators are more flexible, because they need to prey on other creatures. The reason why he is more flexible is that its osteodems are farther from each other than the turtle.it has more space to deform. I hope to use the sturdy and changeable characteris�cs of the alligator’s osteodoms to transform it into a simple
Pull
refuge for refugees. This refuge is like a bone plate, which can be easily bent
Push
when it is not stuck, but when it reaches a certain angle Structural structure
+10~-20度
Osteodem Study JOINT
MOVABLE
c
b
d
a
SHAPE
c
b c
10°
Experiment:
-20°
SUTURE
b
d
a
a
d
AMOUNT
SHAPE
Take four plates as a unit to study what kind of deforma�on the bone plate will produce when facing the force in different direc�ons, and how the bending degree of the osteodems will change when the shape of the osteodems changes. and then I study osteodem in three way : the osteodem’s suture , amount and shape.
1.Suture a°
b°
a°= b° a=b=c=d=e=f
a°= b°
a b c d e f
a>b>c>d>e>f
outside
小
大
c°
c°
d°
d°
受力
Control the angle by changing the shape of the suture,and use it to connect objects.
inside
2.Amount
Movable Three
Five
More than five
3.SHAPE Study openings and angles through different numbers and combina�ons of different shapes. It is also found that when the number is even, the plates can be closed; and different shapes will produce different openings
Bigger
Smaller
Deform
3
5
6↑
Closure
ii Experiment
Unit
Cut the 7 cm isosceles triangles at the corners of the connected planks, and replace them with rectangular drilling iron pieces to lock the iron pieces to the board.
A 7cm
7cm
Abstrac�on based on osteodem and fibers
B
1:
4
θ
θ
angle=θ 0°<θ<45°
The jigsaw tenon is used at the joint to control the bone plate to bend to the desired angle when �ghtly closed
C
The plas�c strap on the back allows the osteodem to bend and seal in the desired direc�on.
The more the belt is a�ached to the center, the more the bone plate bends when the bone plate is �ghtly closed, so the a�achment stops in the middle. outside
inside
The posi�on of the bone plate above and below the seal can generate a force that �ghtens the bone plate up and down.
Concept
Shape plan
Combined on a unit basis, the signiďŹ cance of this prototype is that when it is spread out, it is not structural, it can be bent arbitrarily, and it is calculated by calculaďż˝ng the minimum number required to build it, so it looks like a triangular pillar povilion
Conclusion: However, the use of simple coils and sutures cannot make the plates close together, and cracks will occur, and the roof part cannot be connected by corners considering the actual construc�on method. the connec�on between the board should be rethought
Prototype I Each plate size is 60*60 cm
Use iron to connect each sheets.
15°
Each sheet bend 15°
The sheet touch the grount will thicken.
In this prototype, I increased the number of plates to improve the connec�on between corners and corners, and increased the height of the en�re model, so that it is enough for people to enter comfortably. In addi�on, due to the increase in the number, dierent deforma�ons of the plates in dierent parts, for example: the plate at the bo�om once made the whole more stable.
Aďż˝er increasing the number, the weight of the enďż˝re prototype becomes more uneven, and collapse occurs, which requires the help of a rope to stand. The sawtooth between the plates may not work because of its insuďŹƒcient weight, resulďż˝ng in many cracks.
shape
joint
pump
ii
ii
ii
Shape
Increase the number of plates to average the force
Archimedean Solid
The convex uniform polyhedra composed of regular polygons mee�ng in iden�cal ver�ces.
Johnson Solid
Like the Archimeden solid but which is not uniform.
They are all sturdy, but this one’s cracks are more average and fewer in number.
Prototype II Units cannot be sealed together
Joint use the basic type but the joint on the top doesn’t work
Joint does not work
Infla�on system same as the outside shape but it too huge and doesn’t be�er.
A�er deciding on the new shape, I tried to assemble it with the previous unit. The new shape is radial and the direc�on is the same, but the number of plates is much more than before.
There are too many plates, it becomes more diďŹƒcult to control the track at ďŹ rst, it is almost impossible to travel when the pump is inated, and JOINT sďż˝ll cannot play a role
Prototype III Joint -use the basic type
Units s�ll cannot be sealed together
-but the joint on the top doesn’t work
Inflate system
-cylindrical balloon with radial cable -cable is inefficient and the change is too small
Integrate the divided plates to minimize the number, and add the CABLE device to the pump to ensure that the plates can reach the correct posi�on at the same �me
The eďŹƒciency of CABLE is too bad, and JOINT sďż˝ll can not play a role, so that the part that can be successfully sealed will be separated aďż˝er the inaďż˝on is completed.
Joint １０°
１０°
The osteodem can withstand changes of +20~-10° due to the sutures, and ensure that the sutures are in the correct posi�on ２０°
２０°
θ
angle =θ θ 0°<θ<45°
study the rela�onship between the suture and the angle, it was found that the bending angle was limited to 0-45 degrees. Simplify connected fibrin to both sides
Divide joint into three sec�ons to prevent him from sliding
Double-layer serra�on makes it stronger
Imitate fiber connec�on and increase firmness
TYPE A
According to their different difficul�es, different shapes are derived
For connec�on like the hinge, but it also can be fold.
Ty p
eA
TYPE C Lock a�er bending
Ty p
eA
Par�cipate in three different styles so that they will not move
eC
p Ty
Type
B
Type
D
36°
＆
TYPE B
36°
Resist tension and lock Use sutures to lock it and a�ach iron pieces at the end to prevent collapse
45°
TYPE D Resist thrust Stuck a�er reaching a certain angle so that the they will not move
36°
Pumping system
cable plan
Using the pump as the power, SHELTER only needs to be assembled on the ground to automa�cally build; combined with the CABLE line, the plate can automa�cally approach and combine at the same speed.
A�er the infla�on is completed, remove the pump and the cable from the entrance for the next one to use.
360cm
360cm
The internal space allows 4 people to place items and live
Use the iron ring to lock the inflatable device and snap the iron ring into the groove of the bo�om plate When the device is raised due to infla�on, the cable will pull the plate closer R=120cm
iii Instruc�ons ＆
Detail
STEP 1:Transport
INSTRUCTION How to build a shelter quilkly?
1180cm
The size of a refuge unit is about 120*120 cm, which can be combined into a living unit of 210 cm high and about 10 square meters. Calculated with a 15-ton truck, each truck can transport 40 shelter parts, and the combined capacity can accommodate 148 people.
37
272cm
185
1.8*1.8=10㎡
240cm
23
×1
×5
×15
SHELTERS/15 tons truck fold
27
27
27
STEP 2:Gather Assemble the plate according to the specific style using iron parts, Place the pump under the plate and connect with the cable.
8
STEP 4:Remove the pump A�er the infla�on is completed, use u-shaped iron parts to strengthen the plate joint and remove the pump
STEP 3:Pumping Connect the motor to the pump and use the pump to build up the shelter.
27
27
27
Use cable to connect the separated plates When the pump is inflated, pull the connected cable, The plates are pulled and combined
STEP 5:Build the camp This is how the infla�on system and the bo�om plate combine tobe the pump.
Using this fast-built system, you can quickly build refugee camps for refugees and provide them with a place to stay temporarily.
Refugee Camp Using geometric to create mul�ple possibili�es, Using different types to support the facili�es needed in refugee camps
the camps were usually arranged in a square array, which is convenient for management.But there is no space suitable for people’s ac�vi�es
Decrease width and increase height
Connect the three units together to create a spacious open space
he use of different heights of splicing makes the unit suitable for people to use as a seat or table
3.6m
2.1m
Â
7.2m
 €
Â?
2.5m
2.1m
Â
3.6m
Â?Â?
9m
 �
2.1m
1 Each family reserves amusement space for children to grow 2 Close to the service center 3Each shelter can be arranged in an array for easy management 4 A common use space is needed to facilitate the entry of materials 5 Re-establish their own lifestyle
Â?Â?
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A�er the en�re system was transported to the refugee camp by truck, the refugees were able to use the pump to quickly build the quan�ty they needed and build their own temporary residence.
2 0 20,SP RI NG