BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:I.Mirtsopoulos Public PhD Defense
DTSTART:20220406T170000
DTEND:20220406T183000
DTSTAMP:20260504T153046Z
UID:034b08e374e2f6492db07f543c71eb61da0ee376e1bc540d5fd93ef7
CATEGORIES:Conferences - Seminars
DESCRIPTION:Ioannis Mirtsopoulos\, EPFL\nIoannis Mirtsopoulos is pleased t
 o invite you to the public defense of his doctoral thesis:\n\nPolicy-based
  Exploration of Equilibrium Representations (PEER): A topology grammar for
  generative conceptual structural design\n\nDesign exploration is a creati
 ve process that consists of the incremental generation of design candidate
 s. Supported by digital means or not\, the process handles the ill-structu
 red nature of design and allows creativity to flourish through diversity o
 f design candidates. This research proposes a design framework for the gen
 eration of variant bar network topologies in static equilibrium which faci
 litates the conceptual structural design exploration. Named PEER (Policy-b
 ased Exploration of Equilibrium Representations) the framework:\n\n	increm
 entally grows and transforms networks of bars within specified geometric d
 omains\;\n	maintains their static equilibrium at every intermediate transf
 ormation step\;\n	is built around a parametric policy – a course of acti
 ons - controlled by a choice of four\, explicit or abstract\, rules\;\n	is
  not constrained to precedent or recursing topologies and/or geometries\;\
 n\nStructural design space exploration is achieved through the generation 
 of schematic\, early-stage static equilibrium representations which are in
 dicative\, but not deemed optimized\, force flows. As such\, they are valu
 able as first design inspirations\, prior to comprehensive structural anal
 yses and form refinement. The transformation policy operates on given load
 s\, is free from maximum valency limitations and unbound to specific topol
 ogies and geometries. On the contrary\, the network’s topology is not kn
 own a priori\, but it is defined during the decision-making design process
  and constitutes the main output of the exploratory process.\n\nPEER trans
 forms interim networks of bars\, whilst the network maintains static equil
 ibrium at every transformation step. Precisely\, each transformation resul
 ts in the introduction of a new node\, some bar elements in tension and/or
  compression and a few interim internal forces. The number of interim forc
 es decreases while the number of bars increases and the entire process end
 s when no interim force exists anymore\, which is always achievable due to
  the retention of static equilibrium throughout.\n\nContrary to other appr
 oaches and thanks to the incremental growth of topologies\, PEER opens the
  generative design black box. While the process can be fully automated\, i
 t also lets the designer interrupt\, redirect\, or backtrack to previous t
 ransformations\, at every intermediate step of the transformative process.
  Additional control is granted to the designer through the combinatorial c
 hoice of rules.\n\nThe genetic algorithm's stochastic nature matches well 
 with the concept of exploration and the provision of multiple design alter
 natives. The design space exploration capability of the presented workflow
  is therefore further augmented by coupling it with interactive genetic al
 gorithms\, operating for the course of a single\, or multiple\, policy-bas
 ed transformation(s). Via the interactive user interface\, the designer se
 lects the mutation and crossover parents based on aesthetic or performance
  criteria – though optimization is out of the research scope – and ste
 ers the exploration process according to personal preferences.\n\nPolicy-b
 ased incremental design and interactive genetic algorithms can provide des
 igners with infinite alternative design candidates. Consequently\, they ef
 ficiently boost design space exploration\, and their combination ultimatel
 y provides a new design workflow for conceptual structural design. Its cap
 acity to unveil numerous\, unprecedented\, maybe unexpected\, but statical
 ly valid\, structural forms is illustrated through planar and spatial appl
 ication studies.
LOCATION:Fribourg Room https://plan.epfl.ch/?room==HBL%200%2021A https://e
 pfl.zoom.us/j/66082993463
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR