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检索条件"任意字段=IEEE International Behavioral Modeling and Simulation Conference"

共 51638 条记录，以下是121-130 订阅

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A Novel and Pragmatic Scenario modeling Framework with Verification-in-the-loop for Autonomous Driving Systems 23

A Novel and Pragmatic Scenario Modeling Framework with Verif...

引用

ieee/ACM 45th international conference on Software Engineering - New Ideas and Emerging Results (ICSE-NIER)

作者： Du, Dehui Li, Bo Zheng, Chenghang Zhang, Xinyuan East China Normal Univ Shanghai Key Lab Trustworthy Comp Software Engn Inst Shanghai Peoples R China

ISBN: (纸本)9798350300390

Scenario modeling for Autonomous Driving Systems (ADS) enables scenario-based simulation and verification which are critical for the development of safe ADS. However, with the increasing complexity and uncertainty of ADS, it becomes increasingly challenging to manually model driving scenarios and conduct verification analysis. To tackle these challenges, we propose a novel and pragmatic framework for scenario modeling, simulation and verification. The novelty is that it's a verification-in-the-loop scenario modeling framework. The scenario modeling language with formal semantics is proposed based on the domain knowledge of ADS. It facilitates scenario verification to analyze the safety of scenario models. Moreover, the scenario simulation is implemented based on the scenario executor. Compared with existing works, our framework can simplify the description of scenarios in a non-programming, user-friendly manner, model stochastic behavior of vehicles, support safe verification of scenario models with UPPAAL-SMC and generate executable scenario in some open-source simulators such as CARLA. To preliminarily demonstrate the effectiveness and feasibility of our approach, we build a prototype tool and apply our approach in several typical scenarios for ADS.

关键词： ADS scenario modeling domain specific modeling language scenario simulation UPPAAL-SMC

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modeling and simulation: Manufacturing of a wheel 10

Modeling and Simulation: Manufacturing of a wheel

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10th international conference on Control, Decision and Information Technologies (CoDIT)

作者： Turkan, Murat Dulger, Lale Canan Unal, Cagri Acar, Begum Izmir Unv Econ Mech Engn Izmir Turkiye Jantsa Wheel Ind TR-09630 Aydin Turkiye

ISBN: (纸本)9798350373981;9798350373974

This study presents the numerical analysis of the joining of the rim and disc parts of a heavy vehicle wheel using the submerged arc welding method. A wheel model was created in real dimensions and in 3D. The welding process was modeled with heat input to the parts determined according to the welding feed rate. It was observed that the residual stresses and the deformation in the weld zone both increased significantly with the increase of the heat input. These residual stresses combine with the influence of external loads under operating conditions. They do adversely affect the fatigue strength of the construction. It was therefore concluded that heat input should be controlled during the manufacturing process.

关键词： Heavy vehicle wheel Welding mathematical modelling numerical simulation Heat input Residual stresses finite element method(FEM)

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A method with criteria for using modeling and simulation to achieve space systems Integration Readiness Levels 17

A method with criteria for using modeling and simulation to ...

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17th Annual ieee international Systems conference (SysCon)

作者： Jesus, Gabriel T. Chagas Junior, Milton F. Inst Nacl Pesquisas Espaciais INPE Engn & Tecnol Espaciais Sao Jose Dos Campos Brazil

ISBN: (纸本)9781665439947

Knowledge concerning the integration process throughout a system life cycle is critical for introducing new technologies. Advances in digital technologies and high-fidelity digital models may lessen investments in physical models to fulfill programmatic requirements when verifying space systems. Digital engineering, model-based systems engineering, and digital twins literature link to this topic. The Integration Readiness Levels (IRL) scale is an emerging good practice that complements the Technology Readiness Levels (TRL) scale in supporting the integration of technologies into a system. IRL has been evolving over the past fifteen years. However, IRL still provides few specific directions on the use of modeling and simulation to achieve its levels. The research objective is to propose a method that suggests whether and under what conditions modeling and simulation could comply with Integration Readiness Levels for space systems. Results show the proposed theory and how it was developed through the design science research method. The proposed method addressed model-based capabilities, system lifecycle processes, and information items in a set of suggested criteria for each IRL and additional considerations. This paper could support practitioners in making decisions about using modeling and simulation to meet Integration Readiness Levels and could support organizations in planning their model-based capabilities.

关键词： Integration Readiness Levels modeling and simulation Space systems Model-based capabilities Model-based systems engineering

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Hardware modeling and behavioral simulation of (Supplemental Restraint System) SRS System in Vehicles

Hardware Modeling and Behavioral Simulation of (Supplemental...

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2023 ieee Renewable Energy and Sustainable E-Mobility conference, RESEM 2023

作者： Ruhal, Rohan Kashyap, Manish Maulana Azad National Institute of Technology Dept. of Electronics and Communication Engineering Bhopal India

ISBN: (纸本)9798350311327

In this paper, the Hardware modeling and behavioral simulation of Supplemental Restraint System (SRS) in vehicles using Xilinx Vivado 2020.2. SRS is a passive safety feature of a vehicle. Passive Safety feature gets activated during or after the crash or accident, reduces the impact of the crash on the vehicle and the passengers from death or any fatal injury. SRS contains 6 Airbags system and Seat Belt Reminder System of a vehicle. SRS System is designed in this paper which consists of a 6 Airbag system and 8 SBR systems for each seat present in a generic SUV car, which meets the BNCAP regulations. © 2023 ieee.

关键词： Accidents

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Anisotropic Models of Nonlinear Magnetic Behavior Laws for Finite Element modeling of Iron Losses in a Toroidal Core

Anisotropic Models of Nonlinear Magnetic Behavior Laws for F...

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ieee international Magnetics conference (INTERMAG)

作者： Drappier, J. Guyomarch, F. Cherif, R. Le Menach, Y. Messal, O. Chevallier, L. Benabou, A. Univ Lille Arts & Metiers Inst Technol Cent Lille JuniaULR 2697L2EP F-59000 Lille France ESME ESME Res Lab Lille Lille France

ISBN: (纸本)9798350362213;9798350362220

This paper explores the implications of nonlinear anisotropic behavior models on the simulation of magnetic losses in a toroidal core made of a conventional Grain-Oriented Electrical Steel (GOES) within a finite element method (FEM) simulation environment. GO laminations are commonly used to improve the efficiency of electrical machines, but their complex behavior requires accurate modeling. Nonlinear resolutions for different anisotropy models were implemented and compared with a measurement-based model. Then, an anisotropic iron loss model from Appino et al. has been applied to evaluate the iron losses. This method provides a decisive way to qualitatively assess various models directly, relying on measurable quantities of interest.

关键词： Grain-oriented materials iron losses magnetic anisotropy nonlinear magnetics

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modeling Framework to Compare High Voltage Vertical GaN PN and Merged PN-Schottky Diodes 39

Modeling Framework to Compare High Voltage Vertical GaN PN a...

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Applied Power Electronics conference and Exposition (APEC)

作者： Atwimah, Samuel K. Nelson, Tolen Pandey, Prakash Fox, Aidan P. Georgiev, Daniel G. Jacobs, Alan G. Koehler, Andrew D. Hobart, Karl D. Anderson, Travis J. Khanna, Raghav Univ Toledo EECS Dept 2801 W Bancroft St Toledo OH 43606 USA US Naval Res Lab Washington DC USA

ISBN: (纸本)9798350316643

This paper presents a comprehensive modeling framework designed to evaluate and compare the performance of high-voltage vertical Gallium Nitride (GaN) PN diodes and merged PN-Schottky (MPS) diodes. The process begins with the fabrication and packaging of the PN diode, followed by the development of its physics-based Technology Computer-Aided Design (TCAD) model. Leveraging the established PN diode model, an analogous model for the MPS diode is developed, and their performances are critically analyzed through mixed-mode simulations. In addition, behavioral models of the two devices are implemented in SaberRD to evaluate their performance in a Buck converter. The results reveal lower reverse recovery and conduction losses for the MPS diode. The framework presented in this paper can aide in the design of future high performing GaN devices.

关键词： gallium nitride III-V semiconductors wide band gap semiconductors TCAD, behavioural modeling vertical GaN diode merged PN-Schottky diode double pulse test reverse recovery mixedmode simulation

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STARK: A Unified Framework for Strongly Coupled simulation of Rigid and Deformable Bodies with Frictional Contact

STARK: A Unified Framework for Strongly Coupled Simulation o...

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ieee international conference on Robotics and Automation (ICRA)

作者： Fernandez-Fernandez, Jose Antonio Lange, Ralph Laible, Stefan Arras, Kai O. Bender, Jan RWTII Aachen Univ Comp Animat Grp Aachen Germany Bosch Res Renningen Germany Univ Stuttgart Socially Intelligent Robot Lab Stuttgart Germany

ISBN: (纸本)9798350384581;9798350384574

The use of simulation in robotics is increasingly widespread for the purpose of testing, synthetic data generation and skill learning. A relevant aspect of simulation for a variety of robot applications is physics-based simulation of robot-object interactions. This involves the challenge of accurately modeling and implementing different mechanical systems such as rigid and deformable bodies as well as their interactions via constraints, contact or friction. Most state-of-the-art physics engines commonly used in robotics either cannot couple deformable and rigid bodies in the same framework, lack important systems such as cloth or shells, have stability issues in complex friction-dominated setups or cannot robustly prevent penetrations. In this paper, we propose a framework for strongly coupled simulation of rigid and deformable bodies with focus on usability, stability, robustness and easy access to state-of-the-art deformation and frictional contact models. Our system uses the Finite Element Method (FEM) to model deformable solids, the Incremental Potential Contact (IPC) approach for frictional contact and a robust second order optimizer to ensure stable and penetration-free solutions to tight tolerances. It is a general purpose framework, not tied to a particular use case such as grasping or learning, it is written in C++ and comes with a Python interface. We demonstrate our system's ability to reproduce complex real-world experiments where a mobile vacuum robot interacts with a towel on different floor types and towel geometries. Our system is able to reproduce 100% of the qualitative outcomes observed in the laboratory environment. The simulation pipeline, named Stark (the German word for strong, as in strong coupling) is made open-source.

关键词： Robot applications

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GAMMA: Generalizable Articulation modeling and Manipulation for Articulated Objects

GAMMA: Generalizable Articulation Modeling and Manipulation ...

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ieee international conference on Robotics and Automation (ICRA)

作者： Yu, Qiaojun Wang, Junbo Liu, Wenhai Hao, Ce Liu, Liu Shao, Lin Wang, Weiming Lu, Cewu Shanghai Jiao Tong Univ Dept Comp Sci Shanghai Peoples R China Natl Univ Singapore Dept Comp Sci Singapore Singapore Hefei Univ Technol Dept Comp Sci & Informat Engn Hefei Peoples R China Shanghai Jiao Tong Univ Dept Mech Engn Shanghai Peoples R China

ISBN: (纸本)9798350384581;9798350384574

Articulated objects like cabinets and doors are widespread in daily life. However, directly manipulating 3D articulated objects is challenging because they have diverse geometrical shapes, semantic categories, and kinetic constraints. Prior works mostly focused on recognizing and manipulating articulated objects with specific joint types. They can either estimate the joint parameters or distinguish suitable grasp poses to facilitate trajectory planning. Although these approaches have succeeded in certain types of articulated objects, they lack generalizability to unseen objects, which significantly impedes their application in broader scenarios. In this paper, we propose a novel framework of Generalizable Articulation modeling and Manipulating for Articulated Objects (GAMMA), which learns both articulation modeling and grasp pose affordance from diverse articulated objects with different categories. In addition, GAMMA adopts adaptive manipulation to iteratively reduce the modeling errors and enhance manipulation performance. We train GAMMA with the PartNet-Mobility dataset and evaluate with comprehensive experiments in SAPIEN simulation and real-world Franka robot. Results show that GAMMA significantly out-performs SOTA articulation modeling and manipulation algorithms in unseen and cross-category articulated objects. Images, videos and codes are published on the project website at: ***/view/gamma-articulation.

关键词： Robot programming

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Non-Linear modeling of Radio Frequency Impairments in Software Defined Radio (SDR) 15

Non-Linear Modeling of Radio Frequency Impairments in Softwa...

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15th international conference on Computing Communication and Networking Technologies, ICCCNT 2024

作者： Giri, Subhra Prakash Vyshnavi, D. Sanjika Devi, R.V. Mathur, Parul Kurup, Dhanesh G. Amrita School of Engineering Dept. of Electronics and Communication Engg. Bengaluru India Amrita School of Engineering Department of Ece Bengaluru India

ISBN: (纸本)9798350370249

behavioral modeling and characterization of radio frequency (RF) impairments play a crucial role in comprehending and assessing the performance and limitations of a software defined radio (SDR). Additionally, behavioral modeling of the transmit-receive chain allows us to implement compensation strategies to mitigate the effects of channel impairments. The primary objective of this paper is to model and characterize the non-linear behavior of the complete RF transmit and receive chain of the SDR hardware using well-established memory polynomial (MP) and generalized memory polynomial (GMP) behavioral models. Experimental results demonstrate that the GMP model accurately predicts the RF characteristics of the USRP B210 SDR with an NMSE of -36.6184 dB. Subsequently the model can be used to predict and enhance the performance of wireless systems across diverse scenarios, as well as to optimize their design for specific applications. © 2024 ieee.

关键词： behavioral modeling Memory Polynomial Nonlinearity Power Amplifier Software Defined Radio (SDR)

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modeling Variation in Human Feedback with User Inputs: An Exploratory Methodology 24

Modeling Variation in Human Feedback with User Inputs: An Ex...

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19th Annual ACM/ieee international conference on Human-Robot Interaction (HRI)

作者： Huang, Jindan Aronson, Reuben M. Short, Elaine Schaertl Tufts Univ Medford MA 02155 USA

ISBN: (数字)9798400703225

ISBN: (纸本)9798400703225

To expedite the development process of interactive reinforcement learning (IntRL) algorithms, prior work often uses perfect oracles as simulated human teachers to furnish feedback signals. These oracles typically derive from ground-truth knowledge or optimal policies, providing dense and error-free feedback to a robot learner without delay. However, this machine-like feedback behavior fails to accurately represent the diverse patterns observed in human feedback, which may lead to unstable or unexpected algorithm performance in real-world human-robot interaction. To alleviate this limitation of oracles in oversimplifying user behavior, we propose a method for modeling variation in human feedback that can be applied to a standard oracle. We present a model with 5 dimensions of feedback variation identifed in prior work. This model enables the modifcation of feedback outputs from perfect oracles to introduce more human-like features. We demonstrate how each model attribute can impact on the learning performance of an IntRL algorithm through a simulation experiment. We also conduct a proof-of-concept study to illustrate how our model can be populated from people in two ways. The modeling results intuitively present the feedback variation among participants and help to explain the mismatch between oracles and human teachers. Overall, our method is a promising step towards refning simulated oracles by incorporating insights from real users.

关键词： human behavior modeling reinforcement learning human feedback interactive robot learning human-centered robotics

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