Abstracts Track 2025


Area 1 - Modeling and Simulation Methodologies

Nr: 27
Title:

The Method of Process Study of the Internal Deliveries Using Simulation Modeling in a Hospital

Authors:

Jacek Krzywy

Abstract: Hospitals are currently facing serious challenges related to the rising costs of healthcare. In hospitals, a significant part of all costs necessary to provide patient care are costs related to handling logistics processes. Therefore, it seems important to develop solutions that provide the possibility of reducing these costs and make it easier for decision-makers to make decisions on choosing the right development path. In response to the identified problem, a method for comprehensively examining the internal hospital delivery process was developed, which supports decision-making (the main objective of the PhD dissertation). By using the developed method, the hospital unit that will conduct the study using it will have the opportunity not only to examine the current effectiveness of the internal hospital supply process, but also to test different scenarios of changes in this process. The first, theoretical part of the work addresses the issue of supply chains, currently used methods of studying the process of internal deliveries in the hospital and analyzes the issue related to modeling simulation processes. The second, practical part of the dissertation begins with a description of the developed concept of studying the process of internal deliveries using simulation modeling in the hospital. Then, the place of implementation work is characterized and the process of verification and validation of the developed method in a selected hospital unit in Poland is presented. The last part of the work is a summary of the completed research and implementation work, presenting the most important conclusions, describing the utilitarianism of the developed method and presenting directions for further research and limitations of the prepared solution. The comprehensiveness and utilitarianism of the developed method can be the basis for its further development and wide application in practice. The developed solution can therefore become an important tool for hospitals in terms of increasing their efficiency of internal delivery processes. Additional information: The above submitted abstract is related to a PhD thesis that is currently in the review process. The planned date for the defence of the above-characterised thesis is scheduled for March this year.

Nr: 57
Title:

Enhanced Simulation Framework for Modeling Curing and Residual Stress in Epoxy Resins Using Moldflow and ABAQUS Integration

Authors:

Venu Prakash Kasinikota

Abstract: Epoxy resins are widely used in electrical isolators, but internal stresses arising from chemical shrinkage, thermal expansion, and exothermic reactions during the Automatic Pressure Gelation (APG) process can compromise component integrity. This study presents a hybrid simulation framework integrating Moldflow for filling and initial curing simulation with ABAQUS for structural and residual stress analysis. The Cross-Castro-Macosko model was employed for reactive viscosity, the Prout-Tompkins equation for cure kinetics, and the 2-domain Tait equation for pressure-volume-temperature (pVT) behavior. Material models were validated using Differential Scanning Calorimetry (DSC) and rheometer measurements. After the sprue region had solidified, Moldflow data were imported into ABAQUS, where the CHILE model accounted for curing-induced stiffness changes. The integrated approach effectively identified stress hotspots and curing inhomogeneities, aligning well with real-time production data. This computationally efficient workflow provides a robust solution for optimizing epoxy resin molding processes in electrical isolator manufacturing.

Nr: 58
Title:

IQlForge: A Framework for Adaptive Robotic Intelligence

Authors:

Ahmed Amine Tabbassi, Lukas Walter and Stefan Henkler

Abstract: The development of advanced autonomous robots increasingly depends on simulation platforms that canhandle multi-agent coordination, real-time adaptation, and a smooth transfer of learned behaviors to thereal world. Domains like UAV swarms, industrial automation, and smart agriculture illustrate the urgencyof this need: robotic teams face dynamic conditions requiring continuous reconfiguration, efficient design ex-ploration, and robust performance assurances. Although modern simulators facilitate rapid experimentation,they often fail to fully capture real-world complexities, causing a pronounced “reality gap.” Consequently,there is a demand for more comprehensive frameworks that unify high-fidelity simulation, large-scale designexploration, formal validation, and on-the-fly adaptation. Platforms like the General Robot Intelligence Development (GRID) framework incorporate modular AI components for robotics, leveraging foundation models for learning-based skill acquisition. While GRID and similar systems allow simulation-based training before real-world deployment, they often lack large-scale batch exploration, rigorous safety validation, and adaptive pipelines that refine systems iteratively. These limitations are especially critical for heterogeneous swarms or safety-sensitive applications. Three major challenges persist: Scalability, most tools lack integrated support for testing thousands of heterogeneous scenarios. Formal Validation – many platforms provide basic simulations but lack rigorous safety verification against collisions, deadlocks, or resource failures. Robust Sim-to-Real Transfer – unmodeled physics and environmental uncertainties degrade real-world performance, requiring manual code modifications or retraining. To bridge these gaps, we present IQlForge, an architecture that integrates multi-agent coordination, large-scale simulation-driven design exploration, formal safety verification, and multi-layered adaptation. A corefeature is its multi-layer simulation-to-reality pipeline. IQlForge continuously synchronizes a digital twinwith real-time robot data, detecting discrepancies and refining learned models to minimize the reality gap.Drawing insights from recent UAV swarm research, IQlForge enables high-fidelity simulations of distributedsystems under varying conditions—wind, terrain changes, or dynamic tasks—while formal methods verifythat no unsafe behaviors emerge. Additionally, algorithmic self-optimization and reactive control modulesallow robots to adapt mid-mission, adjusting flight paths, reassigning tasks, or altering parameters if un-expected conditions arise. By combining these elements, IQlForge provides an environment where robotssystematically improve in simulation and arrive in physical tests with validated, context-aware strategies. IQlForge supports diverse simulations, including UAV swarms for environmental monitoring, vehicular traffic modeling, and agricultural robots optimizing bale delivery. In each case, large-scale exploration identified optimal task allocations, route plans, and adaptation policies that reduced battery consumption, collision risks, and idle time. Formal verification detected failure modes missed by conventional testing, reinforcing safe and efficient deployment.

Area 2 - Simulation Technologies, Tools and Platforms

Nr: 72
Title:

Study on Improvement Poor Convergence of High-Frequency Electromagnetic Field Analysis

Authors:

Takuto Dogome and Amane Takei

Abstract: In recent years, electromagnetic field analyses have been used in industrial applications such as electronic circuit board design for electronic devices and noise countermeasure studies, and medical applications for quantifying propagation within the human body and evaluating the electromagnetic environment effects of medical devices such as microwave scalpels. A high-frequency electromagnetic field analysis based on the finite element method is known for poor convergence of iterative methods. Furthermore, false convergence may occur in which a physically correct solution cannot be obtained even though the convergence judgment value is met. In this presentation, we describe past examples of poor convergence improvements and their challenges, then future efforts including research on the characteristics of the poor convergence problems.

Nr: 73
Title:

Live Music Club Sound Environment Design by Large-Scale Acoustic Simulation

Authors:

Daichi Uchiyama and Amane Takei

Abstract: Acoustic analyses are now widely used in acoustic designs, both indoors and outdoors, due to the recent dramatic improvement in computers and software performances. The open-source software: ADVENTURE_Sound is one of them. ADVENTURE_Sound can perform large-scale analyses of high-definition models with tens of millions to hundreds of millions of degrees of freedom on a variety of parallel computer environments, while maintaining extremely high parallelization efficiency. In this study, authors create large-scale 3D numerical models of a live music club with tens of millions of degrees of freedom based on data scanned at the club, and analyzed it under various sound absorption conditions on ADVENTURE_Sound. The positions of the sound-absorbing materials necessary to obtain better sound quality in a live music club were verified.

Nr: 74
Title:

Study of High-Frequency Electromagnetic Field Analysis Based on the Edge Element Finite Element Method

Authors:

Taiga Yamada and Amane Takei

Abstract: Recent dramatic improvements in computer performances and advances in numerical computation techniques have increased the demand for the use of a numerical analysis in the design of information and communication equipment in the microwave region. Users of electromagnetic field analysis software have been increasing for the electromagnetic compatibility: EMC studies, etc., and need the realization of a whole electronic circuit board high-frequency electromagnetic field analysis technique. In this study, we verify the applicability of a parallel element method for microstrip lines with transmission lines on the surface of electronic circuit boards. The verification results basically show that convergence tends to deteriorate with increasing frequency, on the other hand, sometimes improves. In general, when the element edge length is reduced, the mesh becomes finer and the coefficients of the simultaneous equations become very similar, which is considered a disadvantage in solving the matrix equation. The verification results also confirm the need to improve convergence deterioration. Therefore, we considered the basic equations of the high-frequency problem and developed a code for the edge element finite element method from the basic equations to verify the formulation.

Nr: 75
Title:

Constrution of Acoustic and Fluid Coupled Analysis Method for Elucidating Nonlinear Acoustic Phenomena

Authors:

Amane Takei and Kentaro Koga

Abstract: The volume of the sounds we experience in our daily lives is extremely small compared to atmospheric pressure, and the propagation process of sound waves is described as linear. However, sound waves propagate with the density of the medium, and since the speed of sound increases with the density of the medium, the wavefront gradually becomes steeper as it propagates, and shock waves are formed. In particular, with large pressure changes such as those associated with an explosion, steep wavefronts are easily formed, and extreme regions where pressure and density change suddenly are created beyond these wavefronts. Nonlinear acoustics acts as a bridge between these strong shock waves and traditional acoustics, which starts from the assumption of small amplitude and is based on linear theory, and its research focuses on weakly nonlinear waves in which second-order nonlinearity plays a major role. The nonlinear acoustics phenomenon mentioned in the title belongs to this research field. In the field of nonlinear acoustics, waveform distortion, acoustic streaming, and acoustic radiation pressure are the three main pillars, and have been discussed as classical problems, with much fundamental and applied research being conducted on them. It is clear that if a system is nonlinear and a sinusoidal alternating current is input to it, not only harmonics but also direct current components can be generated; the former causes waveform distortion, and the latter causes acoustic streaming and radiation pressure. In the case of analysis of nonlinear sound fields using the finite element method, nonlinear acoustic analysis of large spaces has not yet been realized due to the difficulty of formulating nonlinear sound fields using the finite element method and the large memory capacity required to analyze large-scale systems. Methods for solving large-scale linear equations have been well studied in recent years, and research is also progressing on the analysis of large-scale linear wave equations using the finite element method and the COCG (Conjugate Orthogonal Conjugate Gradient method). However, iterative methods such as the COCG method have the problem that convergence slows as the degree of freedom and frequency of the analysis target increase. Therefore, in this study, we addressed the formulation of nonlinear acoustic analysis by coupling a linear acoustic analysis solver and a fluid analysis solver.