Noise and vibration analysis for automotive radiator cooling fan

Razak, N. F. D.; Sani, M. S. M.; Azmi, W.H.; Zhang, B

doi:10.1088/1757-899x/257/1/012083

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…One of the noise and vibration generating components is the cooling fan. These sounds lead to a state of dissatisfaction on the part of the passengers and a decrease in the degree of concentration [2]. Especially for larger cars, the noise generated by the car fan often covers the noise of the engine, tire, running gear, transmission.…”

Section: Noise and Vibrations Generated By The Ac Installationmentioning

confidence: 99%

Study regarding the reduction of energy, vibrations and noises generated by the car fan

Vranău

Caunii

Bujoreanu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The ventilation and air conditioning system is a complex and energy-consuming one. So far there is a lot of research in this area, but most of it is related to the study of soundproofing materials behind the dashboard and the modification of the air ducts. Our paper presents a more efficient constructive solution, which will reduce energy, noise and vibration. The purpose is to study air distribution systems with multiple fans. The number of small fans will be directly proportional to the seats in the car (depending on the type of car). The difference between the system proposed by us and the classic one is that the fans will start depending on the seats occupied by the passengers. Favourable results of studies can lead to high passenger comfort. Also, vibration reduction solutions for ventilation and air conditioning systems are all the more necessary in the case of silent electric cars.

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Section: Noise and Vibrations Generated By The Ac Installationmentioning

confidence: 99%

Study regarding the reduction of energy, vibrations and noises generated by the car fan

Vranău

Caunii

Bujoreanu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“… the measurement of the radiated sound and related environmental impact (among the others, the investigation on the sound sources related to Germany train transportation network, performed by Werning et alii [13]; the assessment of dedicated strategies to measure of the noise radiated by specific automotive components, by Razak et alii [14]);…”

Section: Introductionmentioning

confidence: 99%

Car Soundproof Improvement Through an SMA Adaptive System

Ameduri¹,

Brindisi²,

Ciminello³

et al. 2018

Preprint

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The work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific working regimes (cruise), without interfering with the conventional open-closure operations. The idea addresses the necessity of increasing the seal effectiveness, jeopardized by aerodynamic actions more and more important as the speed increase, generating a pressure difference between the internal and the external filed, in the direction of opening the door. To recover this effect, an expanding mechanism was integrated within the seal cavity, driven by an SMA actuator. The material was activated (heated) by Joule effect; its compactness, intrinsic of smart materials, contributed to arrive to a final system characterized by a high level of integrability (expanding cells). In this paper, the development process is described together with the verification activity, aimed at proving the functionality of the realized device. Starting from the industrial requirements, the most appropriate solution was identified highlighting the working principle and the main design parameters involved. Then, the envisaged system was designed and its executive digital mock up (CAD) was released. Prototyping and laboratory validation showed the reliability of the numerical models and the associated predictions. On this basis, the integration task within the actual reference car was faced. To demonstrate the isolation effect of the proposed system, an experimental campaign was finally organized in an anechoic room, achieving significant results on the concept value.

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“…The assessment of predictive models and design strategies oriented to noise and vibration (like dedicated models and development processes reported by Panda in [10], or the "virtual car" for sound and vibration prediction proposed by Genuit and Bray [11]); • the measurement of radiated sound and related environmental impact (among others, the extensive study on the German railway network sound sources, Werning et al [12], and the assessment of dedicated tools to measure the noise radiated by specific automotive components, Razak et al [13]); • the development and maturation of innovative materials with excellent damping and insulation properties (e.g., shape memory alloys, Duffy et al [14], and magneto-strictive materials, Davino et al [15]); and • the development and integration of dedicated noise and vibration control strategies (f.i., embedded piezoelectric-based solutions developed by Bein et al in the abovementioned CO2NTROL project [16], piezo shunted resonators assessed by Liao and Sodano [17] or Ciminello et al [18], SMA-based architectures for dynamic structural response modulation introduced by Ameduri et al [19]).…”

mentioning

confidence: 99%

Car Soundproof Improvement through an SMA Adaptive System

et al. 2018

View full text Add to dashboard Cite

The work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific regimes (cruise), without interfering with the conventional opening and closing operations. The idea addresses the necessity of increasing seal effectiveness, jeopardized by aerodynamic actions that strengthen as the speed increases, generating a growing pressure difference between the internal and the external field in the direction of opening the door, and then deteriorating the acoustic insulation. An original expansion mechanism driven by a shape memory alloy (SMA) wire was integrated within the seal cavity to reduce that effect. The smart material was activated (heated) by using the Joule effect; its compactness contributed to the realization of a highly-integrable and modular system (expanding cells). In this paper, the system development process is described together with the verification and validation activity, aimed at proving the functionality of the realized device. Starting from industrial requirements, a suitable solution was identified by considering the basic phenomenon principle and the allowable design parameters. The envisaged system was designed and its executive digital mock-up (CAD, computer-aided design) was released. Prototyping and laboratory tests showed the reliability of the developed numerical models and validated the associated predictions. Finally, the system was integrated within the reference car. To demonstrate the insulation effect, the experimental campaign was carried out in an anechoic room, achieving significant results on the concept value.

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Noise and vibration analysis for automotive radiator cooling fan

Cited by 9 publications

References 14 publications

Study regarding the reduction of energy, vibrations and noises generated by the car fan

Study regarding the reduction of energy, vibrations and noises generated by the car fan

Car Soundproof Improvement Through an SMA Adaptive System

Car Soundproof Improvement through an SMA Adaptive System

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