International Conference on Multiple Criteria Decision Making (MCDM 2019): Beyond the Information Age

The MCDM 2019 had 261 Participants from 40 different countrys

Results from the GIVEN-Project were presented at 25th International Conference on MCDM 2019: Beyond the Information Age in Istanbul (Turkey). Johanna Schultes and Onur Tanil Doganay held contributed talks in the session “multiobjective optimization with engineering applications ” with the topics:

  • Biobjective Shape Optimization Using Weighted Sums: Probability of Failure versus Costs.
  • Gradient-Based Biobjective Shape Optimization: Probability of Failure versus Cost.

Both talks were held on the same shape optimization problem and presented different biobjective solution approaches that were explored in the last year.

The MCDM Conference [...]  read more

SIAM Conference on Computational Science and Engineering (CSE19)

Two members of the GIVEN-Consortium participated in this year’s SIAM Conference on Computational Science and Engineering with the following two contributions:

  • Generation of Structured Meshes for Shape Optimization (Contributed talk)
  • Blocked Multigrid Methods for Structured Matrices (Poster)
Both contributions showed recent advances that had been made by the project in the past year.

The SIAM CSE conference is a biannual conference run by the Society [...]  read more

Poster Presentation at the Women in Optimization 2019 Workshop (Bonn)

Johanna Schultes of the GIVEN consortium participated at the workshop Women in Optimization and presented a poster about results of current research with the topic: “Biobjective Shape Optimization to Improve Reliability and Costs of Ceramic Components using Weighted Sums”.

The workshop series “Women in Optimization” is every two years and addresses young female researchers, doctoral students and mathematical students with focus on optimization and covers the [...]  read more

Recent Advances in Multi-Objective Optimization 2018 (Nantes), France

Visualisation of the Stress Field in one Component

The GIVEN-Consortium participated in the workshop „Recent Advances in Multi-Objective Optimization 2018“ (RAMOO 2018) in Nantes, France with the contribution „Gradient-Based Biobjective Shape Optimization of Ceramic Components: Probability of Failure versus Cost“. This workshop is a recurring format in the multi-objective optimization community and focuses on the latest advances in exact methods in multi-objective (mixed) integer optimization.

The workshop [...]  read more

2nd GIVEN project meeting in Trier on November 29 and 30, 2018

Participants of the meeting in Trier

The GIVEN consortium met on the last days of November 2018 in Trier for its second scientific workshop. 17 participants from the Universities of Wuppertal and Trier, DLR and Siemens AG came together for two days to discuss progress in the GIVEN project and plan future activities.

The workshop program included 9 scientific talks and several discussion rounds. As it is customary in Trier, also a dinner and a wine tasting have been part of the workshop program.

The 20th European Conference on Mathematics for Industry

There were given more than 330 presentations on various topics from Numerical Analysis, Stochastics, Optimization or Modeling. The GIVEN-Consortium participated in the 20th European Conference on Mathematics in Industry (ECMI) in Budapest, Hungary with the contribution “Shape Optimization for a Stochastic Objective Functional“.

The series of European Consortium for Mathematics in Industry (ECMI) conferences are devoted to enforce the interaction between academy and industry, leading to innovations in both fields. These events have attracted leading experts from business, science and academia, and have promoted the application of novel mathematical technologies to industry.

ECMI conferences are organised under the auspices of the European Consortium for Mathematics in Industry, an association of academic [...]  read more

Paper presentation at ASME TurboExpo in Lillestrøm (Oslo), Norway

Prototype of a rotor shaft from one of Ellings designs in 1925

The GIVEN consortium participated in the world’s largest annual turbomachinery conference with the contribution „Adjoint Method to Calculate Shape Gradients of Failure Probabilaties for Turbomachinery Components“ (see publications).

This year’s TurboExpo organized by the American Society of Mechanical Engineers (ASME) is held in Lillestrøm, where the Norwegian inventor Aegidius Elling constructed [...]  read more

Shape optimization to minimize failure probability (and material consumption)

Movie: Shape flow for a 2D rod towards optimal reliability.

As three working groups (Optimization, High Performance Computing and Stochastics) at the IMACM in Wuppertal, we develop probabilistic shape optimization models for different failure mechanisms, notably for low cycle fatigue (LCF) problems, with gradient based methods. Low cycle fatigue is a surface driven failure mechanism that occurs under cyclic loading of technical units made of polycrystalline metal. To calculate [...]  read more