AI and IoT Meet Mobile Machines: Towards a Smart Working Site

AI and IoT Meet Mobile Machines: Towards a Smart Working Site
Title AI and IoT Meet Mobile Machines: Towards a Smart Working Site PDF eBook
Author Xiang, Yusheng
Publisher KIT Scientific Publishing
Pages 294
Release 2022-06-20
Genre Technology & Engineering
ISBN 3731511657

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Infrastructure construction is society's cornerstone and economics' catalyst. Therefore, improving mobile machinery's efficiency and reducing their cost of use have enormous economic benefits in the vast and growing construction market. In this thesis, I envision a novel concept smart working site to increase productivity through fleet management from multiple aspects and with Artificial Intelligence (AI) and Internet of Things (IoT).

Fiber-dependent injection molding simulation of discontinuous reinforced polymers

Fiber-dependent injection molding simulation of discontinuous reinforced polymers
Title Fiber-dependent injection molding simulation of discontinuous reinforced polymers PDF eBook
Author Wittemann, Florian
Publisher KIT Scientific Publishing
Pages 180
Release 2022-11-18
Genre Technology & Engineering
ISBN 3731512173

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This work presents novel simulation techniques for injection molding of fiber reinforced polymers. These include approaches for anisotropic flow modeling, hydrodynamic forces from fluid on fibers, contact forces between fibers, a novel fiber breakage modeling approach and anisotropic warpage analysis. Due to the coupling of fiber breakage and anisotropic flow modeling, the fiber breakage directly influences the modeled cavity pressure, which is validated with experimental data.

Mesoscale simulation of the mold filling process of Sheet Molding Compound

Mesoscale simulation of the mold filling process of Sheet Molding Compound
Title Mesoscale simulation of the mold filling process of Sheet Molding Compound PDF eBook
Author Meyer, Nils
Publisher KIT Scientific Publishing
Pages 292
Release 2022-07-12
Genre Technology & Engineering
ISBN 3731511738

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Sheet Molding Compounds (SMC) are discontinuous fiber reinforced composites that are widely applied due to their ability to realize composite parts with long fibers at low cost. A novel Direct Bundle Simulation (DBS) method is proposed in this work to enable a direct simulation at component scale utilizing the observation that fiber bundles often remain in a bundled configuration during SMC compression molding.

Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning

Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning
Title Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning PDF eBook
Author Thorgeirsson, Adam Thor
Publisher KIT Scientific Publishing
Pages 190
Release 2024-09-03
Genre
ISBN 3731513714

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In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is shown that federated learning can improve driving range prediction. Using probabilistic predictions, routing and charge planning based on destination attainability can be applied. Furthermore, it is shown that probabilistic predictions lead to reduced travel time.

Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle

Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle
Title Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle PDF eBook
Author Jauch, Jens
Publisher KIT Scientific Publishing
Pages 264
Release 2024-03-01
Genre
ISBN 3731513323

Download Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle Book in PDF, Epub and Kindle

This work describes a method for weighted least squares approximation of an unbounded number of data points using a B-spline function. The method can shift the bounded B-spline function definition range during run-time. The approximation method is used for optimizing velocity trajectories for an electric vehicle with respect to travel time, comfort and energy consumption. The trajectory optimization method is extended to a driver assistance system for automated vehicle longitudinal control.

Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces

Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces
Title Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces PDF eBook
Author Pinay, Julien
Publisher KIT Scientific Publishing
Pages 196
Release 2024-01-16
Genre
ISBN 3731513285

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Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already known as an efficient measure to reduce tire rolling noise, this study will focus on compact road surfaces which have a low acoustic absorption. Measurements on standardized ISO 10844 test tracks and on public roads are used to study the norm's representativity and its completeness.

Process simulation of wet compression moulding for continuous fibre-reinforced polymers

Process simulation of wet compression moulding for continuous fibre-reinforced polymers
Title Process simulation of wet compression moulding for continuous fibre-reinforced polymers PDF eBook
Author Poppe, Christian Timo
Publisher KIT Scientific Publishing
Pages 332
Release 2022-07-18
Genre Technology & Engineering
ISBN 3731511908

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Interdisciplinary development approaches for system-efficient lightweight design unite a comprehensive understanding of materials, processes and methods. This applies particularly to continuous fibre-reinforced plastics (CoFRPs), which offer high weight-specific material properties and enable load path-optimised designs. This thesis is dedicated to understanding and modelling Wet Compression Moulding (WCM) to facilitate large-volume production of CoFRP structural components.