Prospects of Harvesting Energy from Vibration in Bangladesh

Rahman, Arifur; Hoque, Md. Emdadul

doi:10.1016/j.proeng.2014.11.831

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…When sound waves travel through a medium, the particles of that medium vibrate parallel to the direction of sound wave that explains the longitudinal wave nature of sound. A human speaker or any other sound source produces the specific vibration patterns that are converted into appropriate auditory signals by the ear [1].…”

Section: Introductionmentioning

confidence: 99%

Structure and Physiology of Human Ear Involved in Hearing

Sheikh¹,

Bint-e-Zainab²,

Shabbir³

et al. 2022

Auditory System - Function and Disorders

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Hearing is the fundamental sense based on the normal functioning of the hearing organ “the ear,” which plays a vital role in social interaction and the ability of learning. The human ear is divided into three parts: the outer, middle, and inner ear. Defects in outer and middle ear can cause conductive hearing loss, while the defective inner ear may lead to sensorineural hearing loss. So, it is important to study the structure and physiology of the human ear. When a sound of particular frequency enters the outer ear, it passes through the auditory canal and strikes the tympanic membrane. It vibrates and passes these vibrations to three ossicles present in the middle ear. The ossicles amplify the vibrations of sound and send them to the cochlea in the inner ear. Cochlea contains organ of Corti, which converts these vibrations into electrical signals by its hair cells. The neural signals in turn are interpreted by the brain, which one can hear and understand. The aim of this chapter is to review the basic structure and physiology of different parts of the human ear that are involved in the hearing process.

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Section: Introductionmentioning

confidence: 99%

Structure and Physiology of Human Ear Involved in Hearing

Sheikh¹,

Bint-e-Zainab²,

Shabbir³

et al. 2022

Auditory System - Function and Disorders

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“…Hence, unbalance and misalignment of shafts in rotating masses are the two significant sources of machine vibration [1,18]. However, it is challenging to balance rotating mass entirely due to the less uniform density of rotational materials and loss of mass during operation [19]. Misalignment of the shaft as well as unbalance of mass is always present in rotating machines, and in the majority of practical applications, they are taken place under any operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Health Condition Monitoring and Control of Vibrations of a Rotating System through Vibration Analysis

et al. 2022

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This paper presents condition monitoring, fault detection, and control of vibration of a rotating system using vibration analysis. The system includes ball bearings, pulleys, impellers, shafts, and an electric motor. The experimental approach generated different levels and forms of vibration that were measured using a vibration analyzer (CSI 2140). A vibration analyzer is used for determining the characteristics and nature of vibration of the experimental system. System vibrations were measured in terms of amplitude, phase angle, and frequency during the experimental operating conditions. After that, the experimental results were compared with the ideal working conditions mentioned in the ISO standard for the determination of machine health and condition monitoring. This paper also presents a passive control technique to enhance the machine’s health condition. The generated faults of the system have been detected and solved by using an exact measurement of polar plot analysis. This approach of condition monitoring, fault detection, and improving operating conditions can be used to visualize and analyze vibration data in any rotating system. Furthermore, this technique would be a feasible and effective way of finding strategies for the maintenance of rotary machines.

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Prospects of Harvesting Energy from Vibration in Bangladesh

Cited by 2 publications

References 2 publications

Structure and Physiology of Human Ear Involved in Hearing

Structure and Physiology of Human Ear Involved in Hearing

Health Condition Monitoring and Control of Vibrations of a Rotating System through Vibration Analysis

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