Výsledky vyhledávání - "Farnaz Tajdari"

A low-profile flexural displacement-converter mechanism for piezoelectric stack actuators

Autor: Marijn Nijenhuis, Arthur P. Berkhoff, Farnaz Tajdari, A. de Boer, Mark Naves

Publikováno v: Sensors and actuators. A: Physical, 313:112198. Elsevier

A thin flexure-based mechanism is proposed that is useful in applications with limited build space. The proposed mechanism converts the initial in-plane motion of two piezoelectric stack actuators to an out-of-plane translational motion. Two actuator

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8dc3aa65ee373161bf054c453d43184
https://research.utwente.nl/en/publications/14809c46-a244-43ea-9670-e8d702c8a74d

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Numerical and experimental studies of a flat acoustic source that is actuated by an integrated flexure-based piezoelectric mechanism

Autor: A. de Boer, Arthur P. Berkhoff, Farnaz Tajdari

Publikováno v: Journal of sound and vibration, 482:115435. Academic Press Inc.
Journal of Sound and Vibration, 482

This paper focuses on extensive numerical and experimental investigations of a thin sandwich acoustic source. Due to an energy inefficient actuation design, a thin sandwich acoustic source that was proposed in an early study is redesigned and reconst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54ee4f07edb1e980734d47edf05e7cff
https://research.utwente.nl/en/publications/f299a742-c69e-4918-a7de-e20f1a56882c

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Numerical modeling of a flexural displacement-converter mechanism to excite a flat acoustic source driven by piezoelectric stack actuators

Autor: A. de Boer, Farnaz Tajdari, Arthur P. Berkhoff

Publikováno v: Journal of sound and vibration, 473:115229. Academic Press Inc.
ISSUE=28;TITLE=28th International Conference on Noise and Vibration Engineering, ISMA 2018

This paper studies an acoustic source with a relatively small thickness and a high bending stiffness. The acoustic source operates in the low frequency, quasi-static regime. The focus of the current study is on the actuation part in order to design a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7729b2d9c60e5103eda4516b2da490a8
https://research.utwente.nl/en/publications/32cb89c4-7a0a-4675-81b4-71a8082823ca

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Energy-efficient low-frequence flat acoustic source

Autor: Farnaz Tajdari

There is a need for compact acoustic sources that operate at low frequencies. These acoustic sources can be employed to produce good quality sound in the low frequency range. A problem arising when the acoustic sources operate at low frequencies is t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f54a8d5b1ea9bd4bf38c7208df7a463
https://doi.org/10.3990/1.9789036548991

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The influence of energy recovery on the overall efficiency of acoustic sources at low frequencies

Autor: A. de Boer, Arthur P. Berkhoff, R.A.R. van der Zee, Farnaz Tajdari

Publikováno v: Journal of sound and vibration, 485:115548. Academic Press Inc.

This paper defines a criterion called the overall efficiency (OE) for evaluating the efficiency of acoustic sources. In practice, the conventional efficiency (CE), is not capable of giving a comprehensive overview of the power consumption, especially

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7092c090a7986cf057562cc754fd10ec
https://doi.org/10.1016/j.jsv.2020.115548

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