Damping in Materials and Structures: An Overview

Chevalier, Y.

doi:10.1007/978-3-319-77504-3_1

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…Thus, the mechanical damping of the system,c m can be calculated using (10), which is 0.675 for the prototype. The mechanical damping inside the harvester is mainly caused by the hysteresis damping of the flexture itself [32] and the viscous damping related to the air resistance.…”

Section: Measuring Damping Of the Systemmentioning

confidence: 99%

An electromagnetic vibration energy harvester with compact flexure guide for low frequency applications

Wang,

Liu,

Hao

et al. 2023

Smart Mater. Struct.

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This paper presents the design, modeling, fabrication, and characterization of a novel electromagnetic vibration energy harvester (EVEH) using a compact flexure guide structure and opposing permanent magnets. The flexure guide is a unique cylindrical structure, and can transfer force and motion by the deformation of elastic beams. It allows the single-degree-of-freedom motion characteristic, and eliminates the friction between the permanent magnets and the housing structure, which exists in mostly reported magnet-spring based vibration energy harvesters. The structure also greatly reduces the spacing between the coil and the permanent magnets, which considerably increases the magnetic flux linkage through the coil. Experimental results show that the EVEH prototype can generate an output voltage of 6.08 V and output power of 4.02 mW from 0.1 g acceleration at resonant (19.5 Hz), achieving a normalized power density of 3.28 mW cm − 3g − 2. In addition, the flexure guide can be directly fabricated by 3D printing, which greatly simplifies the harvester assembly compared to other EVEHs reported. In terms of the proposed EVEH, a self-powered sensor network is implemented to transfer the GPS data to some appointed terminals.

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Section: Measuring Damping Of the Systemmentioning

confidence: 99%

An electromagnetic vibration energy harvester with compact flexure guide for low frequency applications

Wang,

Liu,

Hao

et al. 2023

Smart Mater. Struct.

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show abstract

“…The French engineer STECKEL declared the world's first invention of ECR in 1903 [12] . In the 1930s, some European manufacturers realized the importance of using retarders on vehicles that often continuously brake on long downhill slopes in mountainous areas [13] , and it was not until 1936 that the French company JOURDAIN MONNERET produced the world's first ECR [14] . France TELMA purchased Raoul SARAZIN's patent for the ECR and began mass production of the ECR [15] .…”

Section: Development Profile and Research Statusmentioning

confidence: 99%

Vehicle Retarders: A Review

Zuowu

Long

et al. 2023

IEEE Access

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Under continuous braking and long slope braking conditions of high intensity for a long time, the temperature of the brake friction plate is extremely high, which leads to poor braking efficiency in the braking process, and even makes the braking force completely lost, More and more heavy-duty vehicles and high-speed transport vehicles are equipped with retarders. As an auxiliary braking system, a vehicle retarder can effectively maintain constant braking efficiency during vehicle braking. This paper discusses the development of HR (Hydraulic retarder) and ECR (Eddy current retarder) with the largest market share, working principle, installation mode, braking efficiency constant effect during use, application range, advantages and disadvantages, patent ownership, and technical difficulty. The technical demands and development trends of future retarders are summarized.INDEX TERMS heavy load vehicle, auxiliary braking, Hydraulic retarder, Eddy current retarder, constant braking efficiency.

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Damping in Materials and Structures: An Overview

Cited by 2 publications

References 22 publications

An electromagnetic vibration energy harvester with compact flexure guide for low frequency applications

An electromagnetic vibration energy harvester with compact flexure guide for low frequency applications

Vehicle Retarders: A Review

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