Sepideh Garivani, Cand. arch. CITA Studio Portfolio 2016-2018
-TABLE OF CONTENT-
01 STEERING MATERIAL BEHAVIOR INTO SHAPE Individual research project supervised by Martin Tamke
07 SAND FACADE
Skinning Fabrication and Sensors workshop
11 ACOUSTIC TECTONICS
Workshop series by Isak Worre Foged, Paul Nicholas, Phil Ayres and Petras Vestatas
15 DIGITAL XYLOPHAGY First Innochain Workshop by Tom Spilans
21 EXQUISITE TIMBER CORPSE Second Innochain Workshop by Paul Poinet
13 DESIGN FOR A SITE OF CONTINUOUS CHANGE Digital Manufacture Workshop CITAstudio/AEE by Martin Tamke and Sebastian Gatz
STEERING MATERIAL BEHAVIOR INTO SHAPE I n d i v i d ua l r e se a r c h p r o je c t s u pe r v is e d b y M a r t in T a mke
In this project, I explored the properties of bioplastics and its composites. By several experimentations, I found gelatine-based bioplastic composites to be structurally strong and having the potential to be applied in architectural scale. The material behavior was also interesting in terms of the shrinking behavior during drying which always lead to a minimal surface geometry. This became the main point of this project to understand the material behavior and explore different methods of controling the formation of material. The material behavior became the main driver of form and in the end it was essential to simulate the shrinking surface to be able to predict and program the final shape. Also, several fabrication methods was used such as a laser cutting materials, 3D printing with a Rep Rap printer and finally 3D printing with the robotic arm. February - June 2017
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[Ma t e r i a l b e h a vi or si mu l a t i on ]
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Kangaroo simulation
Curvature analysis
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[R o b o t i c f a bri ca t i on ] There are several parameters to control when it comes to additive manufacturing such as – viscosity, nozzle diameter, temperature, air pressure, height above printing surface. All the factors mentioned are directly linked to the scale used. Consequently, for each item that was resolved, it had to be re-calibrated as I moved up in scale.
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SAND FACADE: INVESTIGATING THERMAL CONDUCTIVITY Skinning Fabrication and Sensors workshop
Within this workshop we focused on the thermodynamic behaviour of sand and investigated this through the design and fabrication of a skinning element and precise measurment tools. We studied heat transfer between a heated sand based facade and the surrounding climate, through a day cycle. Our hypothesis was that we can regulate a microclimate by introducing elements with different thermal mass in order to release the heat in desired rates. In order to prove our concept, we confirmed the facade elements ‘ ability to control conduction with the right patterning and amount of bags elements. In collaboration with Cepide Grv, Emil Fabritius Buchwald, Erik Lima, Gabrielė Jerošinė, Sebastian Mark Christensen, Aleksander Kongshaug September 2016
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[B oun d a r y c o n d i t i on set u p ]
The box is built with hollow space with trapped air.
The inside is insulated with emergency heating blanket.
A toaster with timer was used as a heat source.
The Hot Box function was enclosing a heat source and channeling it towards the facade elements elected for testing. The heat rises inside the box reaching a stable level between 55 and 60 degrees heating the facade. The facade has a mass which vary in thickness and pattern, manipulating temperature and heat conduction. We could control the environment inside the box simulating a day and night rhythm.
The Hotbox with the first facade test mounted.
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A fascinating view from inside the Hotbox.
After turning the Hot Box 90 degrees to at vertical stand, the inside temperature stabilised better and heat distribution was equalized giving us a more correct data collection.
Thermal camera
Data collection from 4 different points of different thickness.
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Hobo sensor measuring outside temperature .
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Hobo sensors measuring temperature in 4 different points of the facade element.
Hobo sensor measuring inside temperature.
Heat source placed in the bottom of the Hot Box. The the vertical Hotbox with the facade test mounted.
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°C
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at Thermal image at the the start start [Da t a C o l l e ct i on a n d C omp aThermal ri s image on]
Thermal Thermal image image at at the the end end 45
Comparison of Comparison of Data Data Collected Collected Iteration 1 & 2
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HEATING
ITERATION ITERATION
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Thermal image at the start Thermal image at the start
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Thermal image at the end Thermal image at the end 50
Thermal image at the start
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Comparison of Data Collected 1
Iteration 1 & 2
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ITERATION 1 & 2 OUT BOUNDARY CONDITION 1
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Thermal image at the end
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Thermal image at the start Thermal image at the start
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Thermal image at the end
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Thermal image at the end
Core temp. pocket 1 Core temp. pocket 2 Core temp. pocket 3 Core temp. pocket 4 Outside temp. Inside temp.
Comparison of Data Collected
Core temp. pocket 1 Core temp. pocket 2 Core temp. pocket 3 Outside temp. Inside temp.
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Thermal image at the end
Thermal image at the start 40
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Core temp. pocket 1 Core temp. pocket 2 Core temp. pocket 3 Outside temp. Inside temp.
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Thermal image at the end
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Thermal image at the end 3 HOURS
NATURAL COOLING DOWN
Thermal image at the end Thermal image at the end
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3 HOURS
A C O U S T I C TE CTO NICS 2 0 1 7
Workshop series by Isak Worre Foged, Paul Nicholas, Phil Ayres and Petras Vestatas
In this series of workshops we developed design propositions based on Kangaroo 2 computational modelling, Pachyderm acoustic simulations and physical prototyping through CNC making and thermo-forming. These explorations served as the process of a design competition for the inner shells of childrens shelter. The fields of investigation were forcebased simulations (of materials and acoustics), acoustic theory, design and simulation and digital fabrication. In collaboration with Stian Vestly Holte and Kit Wai Chan December 2016
Fire shelter structure plan
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[D e s i g n a n d form- fi n d i n g of p anels ]
CNC toolpath generation
Fabrication process: 1.CNC milling the cut patterns on panels 2. Heating the panels in the oven 3. forming the panel throught applying force to the heated material
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[Ac o u s t i c s i mu l a t i on ]
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DI G I TAL X YLO P H AG Y Innochain Workshop by Tom Spilans
This project is focused on engineered timber and fluid digital design workflows between design, rationalization, and fabrication. The goal was to produce a laminated timber assembly with machined connection details, using various digital tools in order to then aggregate the different assemblies into a predefined sculptural composition. Using scripting and parametric tools, we moved beyond simple form generation into planning and design rationalization to gain a deeper understanding of timber and timber laminates and to gain a solid grasp of data management and logistics of project organization.
In collaboration with Nicholas Mostovac, Mariel Dougoud, Daoyuan Zhu, Lina VestartÄ—and, Teodor Petrov September 2016
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E XQ U I S ITE TIMBE R CO RP S E Se c on d I n n oc h a in W o r ks h o p b y P a u l P o in e t
In this workshop we developed the project to understand specific Multi-Scalar Modelling techniques trough graph theory and analytics (using the python library NetworkX). Using these digital tools we hierarchize and cluster information through a design framework for extracting three-dimensional information necessary for fabrication. The main purpose was to (re-)create the the KADK Festsalen roof structure whose global design will result from aggregation of many different local design frameworks developed by multiple students groups. Based on the original idea of the exquisite timber corpse ( a participative design method by which a collection of words or images is collectively assembled.) In collaboration with Mandeep Singh, Enrico Pontello and Erik Lima October 2016
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[Joinery design]
Joinery design for nodes - Interwoven lamellas
We designed parametric models for two types of joints which we had in the mid-point of edges and in the node connections. Using the vectors of each edge, the connection details were automatically assigned to each node.
Mid-points miter joints
Mapping joinery details on graph topology
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Joint detail
[Design method]
The starting geometry was based on a randomly created network. The geometry was then relaxed under equal tesion forced using kangaroo simulation. Then we added resistence to vertical deadload assumed to be the self-weight of the roof. And the result was a reverse catenary form. Final geometry
Graph representation
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DESIGN FOR A SITE OF CONTINUOUS CHANGE
Digital Manufacture Workshop CITAstudio/AEE by Martin Tamke and Sebastian Gatz
This workshop investigated the design for a site in continuous change. We designed a skinning element for an existing structure that regulates itself independently and adapts spatially as a result of the kinetic performance of the materials embedded in the joints. Parts of the Chart pavilion’s main structure was re-erected in the KADK courtyard as a testing structure for this workshop. The kinetic nature of the structure and its implication with the change of occlusion of light through the movement, was the key design element. We developed a material system, which spans between the arms of the kinetic elements. This new element had to change the illumination of the space underneath in a way, that an in advance defined light performance is achieved at certain points of the movement. In collaboration with Hannah Arkell, Viktoria Millentrup and Emil Fabritius Buchwald September 2017
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EAST
SOUTH
WEST
We aimed to create a surface that regulates itself independently from an open curved surface to a closed planar surface. It opens itself as the day warms and closes as the day cools, without the need for external sources of energy. The paraffin wax inside the pistons converts thermal energy into hydraulic pressure.
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[3D Scan & Design Development] In the next workshop we used 3D scanning provide information for exploring possible design strategies with the structures that we created. For our first proposal we 3D scanned three states of the structure and repeated or wing structure to create totally new designs.
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[Agent-based weaving] In this proposal we used the 3D scan point clouds as population of agents interacting locally with one another and with their environment. The agents follow very simple rules (seperation, alignment, cohesion) and interactions between these agents lead to the emergence of a global geometries. We added on “bunching� behavior to the typical swarm intelligence rules to achieve the interwoven geometries between PointClouds of two states of the structure.
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