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Iterative Virtual PrototypingWorkshop6.html
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5 July 2011 Half day PM Patrick Janssen, Kian Wee Chen - National University of Singapore Sart Tilman Campus Building B37 - Institut de mathématiquesVenue.htmlWorkshop6.htmlshapeimage_34_link_0
Schedule Format Chair Location RoomWorkshop6.html
Objectives In order to develop more sustainable types of buildings, architects need to design together with engineers and other specialists from an early stage in the design process (Hagan 2008). In practice this is often not the case. One reason for this may be that at the early stage when the overall form of the design is not yet finalized, architects are unsure as to how to engage constructively with engineers and others specialists. Rather than focusing directly on the form of the design itself, a more promising approach for collaboration may be to focus on the methodological aspects of the design process. A broad methodological approach is proposed called Iterative Virtual Prototyping (IVP), which can potentially provide a platform for such engagement. The IVP approach is a performance driven design process that couples design development to design evaluation. (Other examples of this approach include Coender (2007) and Lagios et al. (2010). However, in these cases, design development was only linked to a single type of performance evaluation, thereby limiting the effectiveness of the approach.) For architects, their expertise is focused more on development; for engineers, their expertise is focused more on evaluation. Since the IVP approach couples these two aspects, the IVP platform may encourage architects, engineers, and other specialists to come together and develop integrated digital workflows. The objective of this workshop is to engage in hands-on exploration of the IVP method, and to discuss the extent to which such a method could potentially support a highly integrated and collaborative design process.Workshop5.html
Format The workshop will focus on demonstrating the IVP approach through hands on experimentation using the Sidefx Houdini platform.All participants will be given the opportunity to explore how such a design approach might unfold. Sidefx Houdini is a Visual Dataflow Modelling (VDM) tool. Compared to othe VDM tools such as Rhino/Grasshopper, and Bentley Generatibe Components, Sidefx Houdini is more advanced and very powerful. Modelling in Houdini consists of creating dataflow networks using nodes and links, where nodes can be thought of as functions that perform actions, and links connect the output of one function to the input of another function. The Houdini modeling approach allows designers to efficiently explore alternative configurations without having to manually build each different version of the design model for each scenario. In order to evaluate design performance,  a series of custom Houdini nodes have been developed that participants will be able to experiment with. These include nodes that link to Radiance for evaluation of daylighting and to EnergyPlus for evaluation of energy consumption. Workshop participants will be set a task, using Houdini and the simulation programs to generate and evaluate design variants for a simplified building type. The design is for a free-standing structure consisting of spaces stacked on top of each other. The spaces are offset from one another, thereby exposing certain roof areas of the space below. These exposed areas are then glazed in order to allow daylight to enter the room. For each design variant, daylighting performance, energy performance, and structural performance can be analysed. - Overview (15 minutes) - Introduction to IVP tools: Houdini, Radiance, EnergyPlus, Z88 (45 minutes) - Hands on Experimentation (60 minutes) - Discussion (45 minutes)Workshop5.html
Expected output Participants will get an introduction to IVP using SideFX Houdini, an advanced VDM tool. In addition, participants will also be part of a broader discussion of how the IVP approach might be able to provide a platform for constructive collaboration between different specialists. Workshop5.html