We are pleased to announce the program of the 35th TOP Webinar, a thematic session on “Topology Optimization for Vibro-Acoustics”. It is scheduled for the 20th of February 2025, 16:00-17:00 CET (UTC+1) Time zone converter.

Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Host:  Daniele Giannini & Vanessa Cool (KU Leuven, Belgium)

1 –  Jonathan Davud Razi Seyed Mirpourian (Technical University of Denmark, Denmark)
A Novel Interpolation Scheme for Density Based Topology Optimization of Vibroacoustic Systems
Jonathan Davud Razi Seyed Mirpourian, Niels Aage, “A Novel Interpolation Scheme for Strongly Coupled Multiphysics Topology Optimization with Explicit Sensitivity Control”. Structural and multidisciplinary optimization, 2025 (accepted).

2 –  Eddie Wadbro (Karlstad University, Sweden)
Accomplishing a true wave-focusing acoustic black hole through topology optimization
Abbas Mousavi, Linus Hägg, Martin Berggren, and Eddie Wadbro, “Topology Optimization of a Waveguide Acoustic Black Hole for Enhanced Wave Focusing”. Journal of the Acoustical Society of America. 155(1):742–756, 2024. https://doi.org/10.1121/10.0024470
Abbas Mousavi, Martin Berggren, and Eddie Wadbro, “How the waveguide acoustic black hole works: A study of possible damping mechanisms”. Journal of the Acoustical Society of America 151(6):4279–4290, 2022. https://doi.org/10.1121/10.0011788

3 – Daniel Giraldo Guzman (Ohio State University, United States)
Topology optimization of resonant structures for locally resonant elastodynamic metasurfaces
Giraldo Guzman, D., Lissenden, C., Shokouhi, P., & Frecker, M. (2023). Topology optimization design of resonant structures based on antiresonance eigenfrequency matching informed by harmonic analysis. Journal of Mechanical Design, 145(10), 101704. https://doi.org/10.1115/1.4062882
Giraldo Guzman, D., Pillarisetti, L. S. S., Frecker, M., Lissenden, C. J., & Shokouhi, P. (2024). Surface wave propagation control with locally resonant metasurfaces using topology-optimized resonators. Journal of the Acoustical Society of America, 155(5), 3172-3182. https://doi.org/10.1121/10.0025989

We are pleased to announce the program of the 34th TOP Webinar, a thematic session on “Topology Optimization for Batteries”. It is scheduled for the 5th of December 2024, 16:00-17:00 CET (UTC+1) Time zone converter.
Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Host: Xiaoping Qian (University of Wisconsin-Madison, United States)

1 –  Shinji Nishiwaki & Naoyuki Ishida (Kyoto University, Japan)
Naoyuki Ishida, Kozo Furuta, Masashi Kishimoto, Tiannan Hu, Hiroshi Iwai, Kazuhiro Izui, and Shinji Nishiwaki, “Topology optimization for all-solid-state-batteries using homogenization method.” Structural and Multidisciplinary Optimization 67, no. 162 (2024): 121.
https://doi.org/10.1007/s00158-024-03864-1

2 –  Thomas Roy (Lawrence Livermore National Laboratory, United States)
Thomas Roy, Miguel A. Salazar de Troya, Marcus A. Worsley, and Victor A. Beck. “Topology optimization for the design of porous electrodes.” Structural and Multidisciplinary Optimization 65, no. 171 (2022).
https://doi.org/10.1007/s00158-022-03249-2
Hanyu Li, Giovanna Bucci, Nicholas W. Brady, Nicholas R. Cross, Victoria M. Ehlinger, Tiras Y. Lin, Miguel Salazar de Troya, Daniel Tortorelli, Marcus A. Worsley, and Thomas Roy, “Topology Optimization for the Full-Cell Design of Porous Electrodes in Electrochemical Energy Storage Devices.” (2024). https://arxiv.org/abs/2403.18184

3 – Adriano Sciacovelli (University of Birmingham, United Kingdom)
Humbert, G & Sciacovelli, A. “Design of effective heat transfer structures for performance maximization of a closed thermochemical energy storage reactor through topology optimization.” Applied Thermal Engineering vol. 239 (2024): 122146.
https://doi.org/10.1016/j.applthermaleng.2023.122146

We are pleased to announce the program of the 33rd TOP Webinar, a thematic session on “Topology Optimization in Industry”. It is scheduled for the 24th of October 2024, 16:00-17:00 CEST (UTC+2) Time zone converter.
Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Hosts: Jun Wu (TU Delft), Niels Aage (DTU Denmark), Matthijs Langelaar (TU Delft)

Speakers:

1 – Ming Zhou (Altair)
Industrial application of topology optimization – past, present, and future
Abstract: Industry adoption of topology optimization accelerated approximately two decades ago, when Airbus and Boeing incorporated it for their respective new airliner programs Boeing 787 and Airbus 380 and 350. About 10 years ago, the technology gained broader visibility with the rise of additive manufacturing, as its generative design narrative captured widespread attention. This talk aims to (1) review the technology’s evolution; (2) assess its current status and associated challenges; (3) offer insights into what the next generation of technology could look like, along with its impact on product engineering.

2 – Claus Pedersen (SIMULIA, Dassault Systèmes)
Industrial EV Applications – Structural and Multidisciplinary Modeling for Sensitivity based Optimization Workflows
Abstract: Due to sustainability, the Transport and Mobility (T&M) sector has started a transformation from conventional Fossil based systems to Electric Vehicles (EVs). Thus, we suggest applying CAE workflows including structural and multidisciplinary modeling and non-parametric optimization approaches based upon adjoint sensitivities for addressing the challenges for deriving new and improved designs.
Initial, we address classic structural modeling and topology optimization for lightweight, stiffness, strength and dynamic properties. Additionally, we apply a fatigue reserve factor for infinite fatigue life optimization including multiaxial and non-proportional loading of wheel system components. Furthermore, a geometrically nonlinear quasi-static analysis and a new stabilization scheme for the void elements are applied for buckling optimization of the components. Afterwards, we apply multiphysics modeling for optimizing the low frequency and high frequency electrical applications of EVs as the electrical machine performance and antenna performance. To conclude, the applied applications will also address End-to-End optimization workflow including automated CAD-reconstruction as well as optimization of numerous CAD parameters using intermediate field representations based upon semi‐analytical gradient‐based optimization of exact CAD models.

3 – Paul Lacko (Diabatix)
Topology optimization of a heat sink for cryogenic flow boiling
Abstract: Novel heat transfer solutions are highly sought after across industries facing thermal management challenges. Topology optimization plays a pivotal role in pushing the boundaries of performance in these applications. At Diabatix, we leverage this technology to deliver manufacturable cooling solutions to our clients. In this presentation, we will discuss a case study of a topology-optimized liquid nitrogen CPU cooler designed to operate at -196°C. Experimental analysis demonstrates that this heat sink significantly outperforms its conventional counterpart.

Biographies

Dr. Ming Zhou is currently the Chief Engineer at Altair, where he leads the development of computational mechanics and design optimization solutions. Since joining Altair in 1998, he has served as the chief architect for the company’s optimization technology. OptiStruct, one of Altair’s flagship products, is widely recognized for pioneering topology optimization across a range of industrial applications. Notably, OptiStruct contributed to a 40% weight reduction in the wing leading-edge ribs of the Airbus A380 through topology optimization. It has also played a crucial role in the lightweighting of the Boeing 787 and Airbus A350. These successes extend across major industries, including aerospace, automotive, rail, heavy industry, electronics, consumer goods, and architectural design.
Dr. Zhou has been an active member of the structural and multidisciplinary optimization (SMO) research community. Since 2020, he has been serving as the Editor-in-Chief of the journal Structural and Multidisciplinary Optimization and was the Vice President of the International Society of Structural and Multidisciplinary Optimization (ISSMO) from 2019 to 2023. He has published over 100 research papers in journals and at conferences, garnering over 6,500 citations. Notably, he was among the original authors of the SIMP method for topology optimization.

Dr. Claus Pedersen is Optimization Technology Director for the Multiphysics/Multidiscipline domain of R&D SIMULIA, Dassault Systèmes where he has the job role of defining R&D strategies, inventing and examining the technology of new optimization methodologies, coding of CAE and optimization kernels, technical due diligence, coaching and knowledge sharing for core optimization technologies, research projects and numerical implementations, worldwide presale for customers and presenting at conferences, and corporations with leading international universities. Additionally, his role is highly interdisciplinary working with different teams and organizations involving crossover brand activities from R&D, marketing to international sales on latest technologies.
He has continued to have a strong connection to applied science and research since he received his Ph.D. at Department of Mechanical Engineering, Solid Mechanics, Technical University of Denmark in 2002 and his work the following 2 years as Research Associate at Department of Engineering, Cambridge University, UK. He is reviewing for thirteen international journals, external examiner at several technical universities and supervisor of interns. He has published 24 articles in reviewed international journals and held many presentations at international conferences.

Dr. Paul Lacko is a mechanical engineer and works as a Senior R&D Engineer at Diabatix. He joined the company in 2021 after completing his PhD at KU Leuven. His research focused on enhancing the manufacturability of topology-optimized micro heat sink designs using filtering and homogenization-based methods. At Diabatix, Dr. Lacko contributes to the development of the company’s flagship product, ColdStream, a generative design platform that helps engineers optimize thermal performance. Diabatix collaborates worldwide with leading customers across diverse industries such as automotive, LED lighting, and semiconductor manufacturing, positioning itself as a pioneer in advanced thermal management solutions.

We are pleased to announce the program of the 32nd TOP Webinar, a thematic session on “Truss Optimization”. It is scheduled for the 26th of September 2024, 16:00-17:00 CEST (UTC+2) Time zone converter.
Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Host: Helen Fairclough (University of Sheffield, United Kingdom)

1 – Helen Fairclough (University of Sheffield, United Kingdom)
Helen E. Fairclough, “Adaptive member adding for truss topology optimization: application to elastic design.” Structural and Multidisciplinary Optimization 67, no. 7 (2024): 121.
https://doi.org/10.1007/s00158-024-03830-x

2 –  Jonas Warmuth (EPFL, Switzerland)
Jonas Warmuth, Pierluigi D’Acunto, and Corentin Fivet. “Computational conceptual design–typological exploration of spatial truss systems through optimization.” Journal of the International Association for Shell and Spatial Structures 64, no. 4 (2023): 289-297.
https://doi.org/10.20898/j.iass.2023.026

3 – Enrico Stragiotti (ONERA, France)
Enrico Stragiotti, François-Xavier Irisarri, Cédric Julien, and Joseph Morlier. “Efficient 3D truss topology optimization for aeronautical structures.” Structural and Multidisciplinary Optimization 67, no. 3 (2024): 42.
https://doi.org/10.1007/s00158-024-03739-5

We are pleased to announce the program of the 31st TOP Webinar, a thematic session on “Topology optimization of soft robots”. It is scheduled for the 23rd of May 2024, 11:00-12:00 CEST (UTC+2) Time zone converter.
(Please note the change to the common time.)

Following our new format, introduced in January, each webinar will revolve around a specific theme, comprising an educational/review paper (20 minutes) and two latest articles (10 minutes x 2) related to the same topic. The entire session will last for 1 hour.

Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Host: Josh Pinskier (CSIRO Robotics, Australia)

1 – Josh Pinskier, CSIRO Robotics, Australia
Matheus S. Xavier, Charbel D. Tawk, Ali Zolfagharian, Joshua Pinskier, David Howard, Taylor Young, Jiewen Lai, Simon M. Harrison, Yuen K. Yong, Mahdi Bodaghi, and Andrew J. Fleming, “Soft pneumatic actuators: A review of design, fabrication, modeling, sensing, control and applications”. IEEE Access 10 (2022): 59442-59485.
https://doi.org/10.1109/ACCESS.2022.3179589

2 – Prabhat Kumar, IIT Hyderabad, India
Prabhat Kumar, “SoRoTop: a hitchhiker’s guide to topology optimization MATLAB code for design-dependent pneumatic-driven soft robots”, Optimization and Engineering (2023): 1-35.
https://doi.org/10.1007/s11081-023-09865-1

3 – Anna Dalklint, Lund University, Sweden
Anna Dalklint, Mathias Wallin, and Daniel Tortorelli, “Simultaneous shape and topology optimization of inflatable soft robots”. Computer Methods in Applied Mechanics and Engineering, 420 (2024), 116751.
https://doi.org/10.1016/j.cma.2024.116751

We are pleased to announce the program of the 30th TOP Webinar, a thematic session on “Multiscale Topology Optimization”. It is scheduled for the 23rd of April 2024, 16:00-17:00 CEST (UTC+2) Time zone converter.
(As we switch to summer time in Europe since the end of March, the time difference to your local time zone might be different now.)

Following our new format, introduced in January, each webinar will revolve around a specific theme, comprising an educational/review paper (20 minutes) and two latest articles (10 minutes x 2) related to the same topic. The entire session will last for 1 hour.

Please register at this link. This event will also be live-streamed on YouTube with this permanent link.

Host: Jun Wu (TU Delft, Netherlands)

1 – Jun Wu, TU Delft, Netherlands
Jun Wu, Ole Sigmund, and Jeroen P. Groen. “Topology optimization of multi-scale structures: a review.” 
Structural and Multidisciplinary Optimization 63 (2021): 1455-1480.
https://doi.org/10.1007/s00158-021-02881-8

2 – Rebekka V. Woldseth, DTU Denmark
Rebekka V. Woldseth, J. Andreas Bærentzen, and Ole Sigmund. “Phasor noise for dehomogenisation in 2D multiscale topology optimisation.” Computer Methods in Applied Mechanics and Engineering 418 (2024): 116551.
https://doi.org/10.1016/j.cma.2023.116551