Aage, Niels

Bærentzen, J. Andreas

Christiansen, Asger Nyman

Nobel-Jørgensen, Morten

Sigmund, Ole

Topology optimization has had, and still has, a great impact on the design of structures and mechanical elements. Even though computers and topology optimization algorithms are able to find good solutions to most problems, it is also important for users of such programs to have a good intuition for whether a structure is optimal. We hypothesize that human intuition regarding topology optimization is often led astray. Our goal is to collect data in order to test this hypothesis and at the same time to actively train users (in particular students of mechanical engineering) in designing optimal structures. Consequently, we have created a game, the TopOptGame, which improves the player's topology optimization intuition in a fun and engaging way while collecting data about the users performance.Technically, the TopOptGame builds on the TopOptApp [1] - an interactive topology optimization application designed for hand-held devices. The TopOptApp solves the 2D minimum compliance problem with interactive control of loads, supports and volume fraction, and thus the TopOptApp allows the user to change the problem on the y and watch the design evolve to a new optimum in real time. TopOptApp is available free of charge on iOS and Android devices1.The TopOptGame is inspired by puzzle-games (a genre of computer games), which constantly challenges the players and gives rewards when progress is made. This engagement loop will take the player on a journey starting with simple problems with few supports and a single load and gradually increase the difficulty by adding more loads, restrictions on the design domain, distributed loads and multiple load cases. The goal is to distribute material in a discretized design domain, under some volume and time constrains, while searching for a good solution (minimum compliance). A visualization of the strain energy density will help the player nding a feasible solution.Besides training the player in topology optimization, the game also tracks the progress of each player and sends this progress in anonymized form to a database. When enough data has been collected, this will allow us to analyze the data to measure human performance of topology optimization and more importantly, in which cases people's intuition succeed or fail. The game is currently a working prototype and is scheduled for final release on both iOS and Android before WCSMO-10

Online Research Database In Technology

   General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.   • Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  • You may not further distribute the material or use it for any profit-making activity or commercial gain  • You may freely distribute the URL identifying the publication in the public portal ?  If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Aug 07, 2016Improving Topology Optimization using GamesNobel-Jørgensen, Morten; Christiansen, Asger Nyman; Bærentzen, Jakob Andreas; Aage, Niels;Sigmund, OlePublication date:2013Document VersionPublisher's PDF, also known as Version of recordLink to publicationCitation (APA):Nobel-Jørgensen, M., Christiansen, A. N., Bærentzen, J. A., Aage, N., & Sigmund, O. (2013). ImprovingTopology Optimization using Games. Abstract from 10th World Congress on Structural and MultidisciplinaryOptimization, Orlando, FL, United States.Improving Topology Optimization using GamesMorten Nobel-JørgensenAsger Nyman ChristiansenJakob Andreas BærentzenDepartment of Applied Mathematics and Computer Science,Technical University of Denmark, Asmussens Alle´, B.305,2800 Kgs. Lyngby, DenmarkNiels AageOle SigmundDepartment of Mechanical Engineering,Technical University of Denmark, Nils Koppels Alle´, B.404,2800 Kgs. Lyngby, DenmarkAbstractTopology optimization has had, and still has, a great impact on the designof structures and mechanical elements. Even though computers and topologyoptimization algorithms are able to find good solutions to most problems, it isalso important for users of such programs to have a good intuition for whether astructure is optimal. We hypothesize that human intuition regarding topologyoptimization is often led astray. Our goal is to collect data in order to test thishypothesis and at the same time to actively train users (in particular studentsof mechanical engineering) in designing optimal structures. Consequently, wehave created a game, the TopOptGame, which improves the player’s topologyoptimization intuition in a fun and engaging way while collecting data aboutthe users performance.Technically, the TopOptGame builds on the TopOptApp [1] - an interactivetopology optimization application designed for hand-held devices. The TopOp-tApp solves the 2D minimum compliance problem with interactive control ofloads, supports and volume fraction, and thus the TopOptApp allows the userto change the problem on the fly and watch the design evolve to a new opti-mum in real time. TopOptApp is available free of charge on iOS and Androiddevices1.The TopOptGame is inspired by puzzle-games (a genre of computer games),which constantly challenges the players and gives rewards when progress is1TopOptApp can be downloaded using Apple’s App Store (iOS) and Google Play (Android)1made. This engagement loop will take the player on a journey starting withsimple problems with few supports and a single load and gradually increase thedifficulty by adding more loads, restrictions on the design domain, distributedloads and multiple load cases. The goal is to distribute material in a discretizeddesign domain, under some volume and time constrains, while searching fora good solution (minimum compliance). A visualization of the strain energydensity will help the player finding a feasible solution.Besides training the player in topology optimization, the game also tracksthe progress of each player and sends this progress in anonymized form to adatabase. When enough data has been collected, this will allow us to analyzethe data to measure human performance of topology optimization and moreimportantly, in which cases people’s intuition succeed or fail.The game is currently a working prototype and is scheduled for final releaseon both iOS and Android before WCSMO-10.References[1] Aage, Niels and Nobel-Jørgensen, Morten and Andreasen, Schousboe,Casper and Sigmund, Ole Interactive topology optimization on hand-held de-vices. Structural and Multidisciplinary Optimization, Vol. 47, Issue 1, 2013,Springer-Verlag2

Improving Topology Optimization using Games

http://orbit.dtu.dk/ws/files/58036794/5106.pdf

Improving Topology Optimization using Games

Abstract

Similar works

Full text

Available Versions

Online Research Database In Technology