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Structure-borne Road Noise Target Allocation to Tire-Wheel Subsystem in Autonomous Vehicles
Zoox Inc.
KTH, Skolan för teknikvetenskap (SCI), Teknisk mekanik, Farkostteknik och Solidmekanik. KTH, Skolan för teknikvetenskap (SCI), Centra, VinnExcellence Center for ECO2 Vehicle design.ORCID-id: 0000-0002-3852-8818
Zoox Inc.
2023 (Engelska)Ingår i: Aachen Acoustics Colloquium: November 27th - 29th, 2023 / [ed] Gottfried Behler, 2023Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Personal transportation as we know it is being reimagined thanks to the introduction of autonomous electric vehicles. With autonomous vehicles (AV) on the rise, especially for Transportation Network Companies (TNC), it is expected that the experience inside of the vehicle cabin will be tailored engineered for riders, not drivers. As a result, customer-facing attributes such as noise, vibration, and harshness (NVH) will need to be considered with a new perspective. Of the many challenges in developing NVH performance of an AV, road noise and component noise have, and continue, to require the most amount of development and refinement effort. It is well known that a critical component in the chain from the tire-road interface to the occupant’s ears is the tire-wheel assembly and, therefore, allocating targets for this subsystem is essential. When in motion, the tire-wheel system possesses complex structural-acoustic properties like centrifugal, gyroscopic, fluid-structure coupling, pre-load effects, and excitation that may be described by random enforced motion at the tire contact patch and road interface. Component targets are derived by experimental and virtual methods, enabling simulation-driven product development. For tire testing and development, experimental methods are often limited by the availability of complex and expensive test infrastructure. An alternative approach is explored in order to develop tire-wheel subsystem targets using experimental tests and virtual methods applying transmissibility theory with multiple degrees of freedom based on frequency response functions derived at free-free boundary conditions.

Ort, förlag, år, upplaga, sidor
2023.
Nyckelord [en]
Noise & Vibration, Road Noise, Structure borne Noise, Transmissibility, Tyre
Nationell ämneskategori
Farkost och rymdteknik
Forskningsämne
Farkostteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-342670OAI: oai:DiVA.org:kth-342670DiVA, id: diva2:1831323
Konferens
Aachen Acoustics Colloquium 2023, November 27th - 29th, 2023
Forskningsfinansiär
Vinnova
Anmärkning

QC 20240125

Tillgänglig från: 2024-01-25 Skapad: 2024-01-25 Senast uppdaterad: 2025-02-14Bibliografiskt granskad

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Sturesson, Per-Olof

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Sturesson, Per-Olof
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Farkostteknik och SolidmekanikVinnExcellence Center for ECO2 Vehicle design
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