. From the Thermal Comfort Indices component, Comfort Index 11 (TCI-11):MRT = f(Ta, Tground, Rprim, e)
with:- Ta = DryBulbTemperature coming from ImportEPW component- Tground = f(Ta, N) where N comes from totalSkyCover input. Tground influences the long-wave radiation emitted by the ground in the MRT calculation.- Rprim defined as solar radiation absorbed by nude man = f(Kglob, hS1, ac)- ac is the clothingAlbedo in % (bodyCharacteristics input)- I can't find any definition in the code of Kglob and hS1. Could you tell me please what are those values referencered to? --> probably the globalHorizontalRadiation but how?- e = vapour pressure calculated from Ta and Relative Humidity input
Do you agree that in this case the MRT does not depend on these inputs: location, meanRadiantTemperature, dewPointTemperature and wind speed?It does not depend neither on the other bodyCharacteristics like bodyPosture, age, sex, met, activityDuration...?
MRT calculated by the TCI-11 method is the mean radiant temperature of a vector pointing vertically with a sky view factor of 100%?For ParisOrly epw,
2. From the SolarAdjustedTemperature component (that seems to be more used for the UTCI calculation examples on Hydra compared to TCI-11).
In contrast to the TCI-11, this component distinguishes diffuse and direct radiation and contextualizes the calculation thanks to _ContextShading input, right? It can also be applied to a mannequin thanks to the CumSkyMatrix and thus evaluate the dishomogeneity of radiation exposure.This component seems not to consider the influence of vapour pressure on the result --> is it then more precise to put the MRT output (from the TCI) as an input of meanRadTemperature for SolarAdjustedTemperature?The default groundReflectivity is set to 0.25 --> is GroundReflectivity taken into account in the Tground or MRT calculation in the TCI component? If yes, what is the hypothesised groundReflectivity?The default clothing albedo of 37% (TCI-11 bodyCharacteristics) corresponds to Clothing Absorptivity of 63%?
If the CumSkyMatrix input is not supplied, I get 9 results for the mannequin --> where are those points/results coming from?
If the CumSkyMatrix input is supplied,I suppose the calculation of the 482 results correspond to a calculation method similar to the radiation analysis component that is averaged over the analysis period. Right?But I don't understand why the mannequin is composed of 481 faces and meshFaceResult gives 482 results.
Finally, what is the link between the MESH results, the solarAdjustedMRT and the Effective Radiant field ? Is there a paper to have a detailed explanation of the method?
3. Here are some results for the ParisOrly energyplus weather data. You can find here attached the grasshopper definition.There is no shading in this simulation and the result coming from the ThermalComfort indices for MRT is very different compared to the solar adjusted MRT.Why such a big difference and which of the result should be plugged into the UTCI calculation component?
Results for ParisOrly.epwM,D,H:1,1,12
Ta : 6.5°Crh: 100%globalHorizontalRadiation: 54 Wh/m2totalSkyCover: 10MRT (TCI-11): 1.2°C
_CumSkyMtxOrDirNormRad = directNormalRadiation : 0 Wh/m2diffuseHorizontalRad: 54 Wh/m2_meanRadTemp = TasolarAdjustedMRT: 10.64°CMRTDelta: 4.14°C
_CumSkyMtxOrDirNormRad = CumulativeSkyMtxdiffuseHorizontalRad: 54 Wh/m2_meanRadTemp = TasolarAdjustedMRT: 10.47°CMRTDelta: 3.97°C
_CumSkyMtxOrDirNormRad = CumulativeSkyMtxdiffuseHorizontalRad: 54 Wh/m2_meanRadTemp = MRT (TCI-11)solarAdjustedMRT: 5.17°CMRTDelta: 3.97°C
Thanks a lot for your helpRegards,
Aymeric
…
rring to the above image)
Area
effective
effective
Second
Elastic
Elastic
Plastic
Radius
Second
Elastic
Plastic
Radius
of
Vy shear
Vz shear
Moment
Modulus
Modulus
Modulus
of
Moment
Modulus
Modulus
of
Section
Area
Area
of Area
upper
lower
Gyration
of Area
Gyration
(strong axis)
(strong axis)
(strong axis)
(strong axis)
(strong axis)
(weak axis)
(weak axis)
(weak axis)
(weak axis)
A
Ay
Az
Iy
Wy
Wy
Wply
i_y
Iz
Wz
Wplz
i_z
cm2
cm2
cm2
cm4
cm3
cm3
cm3
cm
cm4
cm3
cm3
cm
I have a very similar table which I could import to the Karamba table. But I have i_v or i_u values as well as radius of inertia for instance.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
dimensjon
Masse
Areal
akse
Ix
Wpx
ix
akse
Iy
Wpy
iy
akse
Iv
Wpv
iv
Width
Thickness
Radius R
[kg/m]
[mm2]
[mm4]
[mm3]
[mm]
[mm4]
[mm3]
[mm]
[mm4]
[mm3]
[mm]
[mm]
[mm]
[mm]
L 20x3
0.89
113
x-x
4,000
290
5.9
y-y
4,000
290
5.9
v-v
1,700
200
3.9
20
3
4
L 20x4
1.15
146
x-x
5,000
360
5.8
y-y
5,000
360
5.8
v-v
2,200
240
3.8
20
4
4
L 25x3
1.12
143
x-x
8,200
460
7.6
y-y
8,200
460
7.6
v-v
3,400
330
4.9
25
3
4
L 25x4
1.46
186
x-x
10,300
590
7.4
y-y
10,300
590
7.4
v-v
4,300
400
4.8
25
4
4
L 30x3
1.37
175
x-x
14,600
680
9.1
y-y
14,600
680
9.1
v-v
6,100
510
5.9
30
3
5
L 30x4
1.79
228
x-x
18,400
870
9.0
y-y
18,400
870
9.0
v-v
7,700
620
5.8
30
4
5
L 36x3
1.66
211
x-x
25,800
990
11.1
y-y
25,800
990
11.1
v-v
10,700
760
7.1
36
3
5
L 36x4
2.16
276
x-x
32,900
1,280
10.9
y-y
32,900
1,280
10.9
v-v
13,700
930
7.0
36
4
5
L 36x5
2.65
338
x-x
39,500
1,560
10.8
y-y
39,500
1,560
10.8
v-v
16,500
1,090
7.0
36
5
5
I have diagonals (bracings) which can buckle in these "non-regular" directions too, and they do. If I could add those values then in the Karamba model I could assign specific buckling scenarios..... I can see another challenge which will be at the ModifyElement component, I will not be able to choose these buckling lengths, in these directions.
Do you think this functionality can be added within short, or should I try to find another way to model these members?
Br, Balazs
…
If you were not there, you can email me and have me give you a written desk crit.
-The assignment due this week will focus in on one of your ideas and dig in deeper. Please compose a 24"x24" pdf of one final project idea including some of the following:
Specific grasshopper examples
Sketches
Images
Text defining your design limitations, variables, the project at large, and parametric qualities
Please name this LastName_FirstName_FinalProject_PartB.pdf and complete by Monday at 7:00 PM.
-There will be a more complete sheet in the upcoming weeks describing the final project, but here is a sneak peek:
Project Brief: Up until now, you have been using grasshopper to develop, analyze, and fabricate architectural ideas in a very controlled format. The final project is a chance to combine this knowledge with your own design intent and aspirations. The project will use specific deliverables to spur growth, but also allow for you, the designer, to do what you please within the following boundaries.
Requirements:
# open project# must be a design project # story of what you are designing and why you are using grasshopper - specific design intent# must have physical scale model # must have 24” x 36” board - made in Adobe InDesign or Photoshop # grasshopper definition image # 1 artistic rendering - any format - with scale figures # 5 iterations of your project must be presented # 1 diagram to visually describe your project # text describing project # process drawings - photos/sketches/models/other iterations# this is the bare minimum - to have an excellent project, one must go above and beyond these requirements# talk to me if you have out of the box ideas of presenting/ teams / etc...
That is all, have a good week!…
y working on is a tensegrity structure that uses cables and a tensile fabric to apply traction. The basic cell of the structure is a sail with two parallel rods.
The easy one was the fabric anchored to the extremes of the rod. I got great results with the tensegrity model , very similar to physical models that I was working on.
But then I tried the same thing with the fabric anchored all along the rods, but it proved to be hard (read all the "rod discussion"). I tried the bending force, but was too unstable. The best model I got was by applying different stiffness to the mesh, specifically, to the lines that coincide with the anchors.
It's by no means the solution that I had in mind, but the next days I'll be testing it with the structure. I came across with the next thing to my ideal solution, Daniel's boat (https://vimeo.com/30128894), but I couldn't replicate it. Anyone has some idea of a different, more rigid solution? Even in K2, which I really don't understand yet, but any clue would be helpful.
Aside of that, I was also having trouble applying real values of stiffness. The third archive has the same definition that the first, but with real stiff values (the rods are wood, k=10^7 N/m, cables are nylon k=2x10^5 N/m). I adjusted the timestep and the subiterations, but it doesn't work as stable and smooth as the whatever-stiffness-sail. I don't know if isn't correctly calibrated, or my computer its too old (it pretty old and slow) or simply isn't a good definition.
If anyone has any idea it would be very much appreciated!
Antonio…
tar Digital Process: Generative Design Technologies Workshop; Taller especializado que se llevara a cabo en 4 de las ciudades mas importantes de la republica mexicana [Puebla] [Mexico DF] [Guadalajara] [Leon] en Enero y Febrero de 2012.http://gendesigntech.wordpress.com/
Enfocado principalmente a arquitectos, diseñadores industriales, diseñadores de interiores, Urbanistas, Artistas digitales, estudiantes y profesionistas afines al diseño; este Workshop tiene como objetivo proporcionar a los participantes los conocimientos y recursos tecnológicos que les permitan desarrollar los elementos de un proyecto desde la concepción hasta su aplicación de manera completa.Apoyándose en un conjunto potente y flexible de plataformas, los participantes aprenderán a generar, analizar y racionalizar morfologías complejas, formas orgánicas libres y algoritmos computacionales avanzados así como a producir visualizaciones fotorealístas aplicables en diversos proyectos de Diseño.A lo largo de 5 dias de intenso trabajo, exploración y retroalimentación los participantes seran guiados en el desarrollo de un flujo de trabajo mas dinamico, que les permitira explotar al maximo el potencial de las herramientas y potencializar sus habilidades, aptitudes y capacidades.Instructores:Leonardo Nuevo Arenas [Complex Geometry]José Eduardo Sánchez [DesignNest]Daniel Camiro/Luis de la Parra [Chido Studio]http://issuu.com/chidostudiodiseno/docs/digproworkConoce el programa aquí.http://gendesigntech.wordpress.com/program/Para registrarte por favor visita.http://gendesigntech.wordpress.com/registro…
sophy though, I have a rudimentary grasp of the Ancient Greeks and modern schools of thought such as Existentialism and Pragmatism, but there is certainly no depth in my understanding. However here the same rule applies. You can quote philosophy all you want, but unless you understand that which you're channelling you can be -at best- accidentally correct.
According to you, these are all vital characteristics:
Aesthetic judgement
Intuition about spatial effectiveness
Knowledge of construction materials & assembly systems
Consideration of performance-driven design properties
Mad synthesizing skillz
[1] and [2] are pretty much worthless, especially when we're dealing with students. Aesthetic judgement is not something that can be wrong or right. You can hone your aesthetic skills but you cannot cultivate better tastes. Intuition is also problematic. It's basically a stand-in for argumentation. Instead of saying "these buildings have to have 20 meters apart because of wind/sound/human perception/human psychology/light/shadow/etc. etc" is a far stronger statement than "these buildings have to have 20 meters apart because of my feelings". Who are you to be trusted? If you have a long and distinguished career backing you up, maybe your opinions carry some weight, but until that point you'd better be prepared to justify your decisions with cold hard logic and data.
[3] is certainly important for certain jobs in construction, but it can be argued that implementation details are not necessarily central to a design. One can design a good computer interface without having to be able to program, and certainly without being familiar with all the idiosyncrasies of a particular programming language. Conversely, one can design an excellent space without knowing exactly how strong certain atomic bonds are. If what you design is physically impossible, then obviously something has to change, but it doesn't mean that the design as an abstract idea was bad. Of course on the other hand one can argue that designing impossible things is not doing anyone any favours. I'm not exactly certain where I stand on this issue, probably comfortably in the middle; YES, students need to learn about what can be build in the physical world, but NO that is not part of design training.
I'm not quite sure what [4] means.
[5] is true for a lot of professions, not just Architects. I would concede that architects probably have more to take into account than most designers and that it is indeed an important skill to have.
I would say that -especially for students, who have little experience- an incredibly important skill to be able to ask yourself "why am I doing this?" about pretty much every decision you make. Basically you need to get very comfortable applying the Socratic method to everything you do.
--
David Rutten
david@mcneel.com
Tirol, Austria…
Added by David Rutten at 11:03am on August 14, 2013