Heiko Atzrodt
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View article: On the use of ferroelectret metamaterials towards noise mitigation and self-powered sensing in aviation
On the use of ferroelectret metamaterials towards noise mitigation and self-powered sensing in aviation Open
In response to growing innovation demands in aviation, open-fan propulsion systems have gained renewed attention owing to their high propulsion efficiency. However, these systems introduce substantial low-frequency acoustic excitation on t…
View article: Vibration Reduction on Circular Disks with Vibroacoustic Metamaterials
Vibration Reduction on Circular Disks with Vibroacoustic Metamaterials Open
Vibroacoustic metamaterials represent an innovative technology developed for broadband vibration reduction. They consist of an array of local resonators and are able to reduce vibrations over a wide frequency range, commonly referred to as…
View article: Simulation workflow for fault detection and localization in sandwich panels
Simulation workflow for fault detection and localization in sandwich panels Open
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View article: A Power-Based Framework for Quantifying Parameter Uncertainties in Finite Vibroacoustic Metamaterial Plates
A Power-Based Framework for Quantifying Parameter Uncertainties in Finite Vibroacoustic Metamaterial Plates Open
Vibroacoustic metamaterials (VAMMs) are artificial materials that are specifically designed to control, direct, and manipulate sound waves by creating a frequency gap, known as the stop band, which blocks free wave propagation. In this pap…
View article: Design and optimization of lightweight bending strain energy harvesters using irradiation cross-linked polypropylene ferroelectret
Design and optimization of lightweight bending strain energy harvesters using irradiation cross-linked polypropylene ferroelectret Open
In this work, a concept for bending strain energy harvesting with lightweight ferroelectrets subject to metallic host structures is proposed. The energy harvester (EH) works with the ferroelectret irradiation cross-linked polypropylene (IX…
View article: Application of vibroacoustic metamaterials for structural vibration reduction in space structures
Application of vibroacoustic metamaterials for structural vibration reduction in space structures Open
This contribution presents research activities on vibroacoustic metamaterials (VAMM) based on the resonance effect for application in space structures to reduce structural vibrations. The focus of this work is the development of a design p…
View article: Fault Injection in Actuator Models for Testing of Automated Driving Functions
Fault Injection in Actuator Models for Testing of Automated Driving Functions Open
In this work, a simulation framework for virtual testing of autonomous driving functions under the influence of a fault occurring in a component is presented. The models consist of trajectory planning, motion control, models of actuator ma…
View article: Verification and validation of automated driving systems utilizing probabilistic FMEA and simulation approaches
Verification and validation of automated driving systems utilizing probabilistic FMEA and simulation approaches Open
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View article: Simulation-Based Testing of Subsystems for Autonomous Vehicles at the Example of an Active Suspension Control System
Simulation-Based Testing of Subsystems for Autonomous Vehicles at the Example of an Active Suspension Control System Open
Automated driving functions are expected to increase both the safety and ride comfort of future vehicles. Ensuring their functional safety and optimizing their performance requires thorough testing. Costs and duration of tests can be reduc…
View article: Simulation Process for the Acoustical Excitation of DC-Link Film Capacitors in Highly Integrated Electrical Drivetrains
Simulation Process for the Acoustical Excitation of DC-Link Film Capacitors in Highly Integrated Electrical Drivetrains Open
The advancing electrification of the powertrain is giving rise to new challenges in the field of acoustics. Film capacitors used in power electronics are a potential source of high-frequency interfering noise since they are exposed to volt…
View article: Development and Implementation of a Multi-Channel Active Control System for the Reduction of Road Induced Vehicle Interior Noise
Development and Implementation of a Multi-Channel Active Control System for the Reduction of Road Induced Vehicle Interior Noise Open
An optimized driving comfort with a low interior noise level is an important intention in the passenger car development process. The interior noise level caused by the dynamic interaction between the rolling tyre and the rough road surface…
View article: Multifunctional and lightweight load-bearing composite structures for satellites
Multifunctional and lightweight load-bearing composite structures for satellites Open
Within the framework of the German national project multiSat multifunctional composite structures for satellite applications are developed. The objective is the integration of passive and active functions into the load-bearing spacecraft s…