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Dynamics of Cricket Song

Nature Inspired MEMS Speakers
Vamsy Godthi
Type: Print Book
Genre: Engineering
Language: English
Price: ₹600 + shipping
Price: ₹600 + shipping
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Description

Natural transducers are a source of inspiration for smart design of systems. Here, I present an example of such a transducer that is used by male field crickets to produce a very loud mating song. Field crickets do not use vocal cords to produce sound, rather they use specialised regions on their forewings and mechanical actuation to radiate sound. With careful measurements on the forewings, I have constructed a finite element model and use it to study the transduction mechanism and show how the song is produced. Inspired by how the cricket actuates and efficiently produces such a loud sound, I have come up with a design for MEMS (Micro Electro Mechanical Systems) speakers. I have been able to realize my first prototypes using simple fabrication processes. By electrostatically actuating the MEMS devices, I obtain a sound pressure of 70 dB SPL at a distance of 10 cm.

About the Author

Vamsy Godthi received the B.E. degree in mechanical engineering from PSG College of Technology, Coimbatore, India, in 2008 and the M.S. degree in mechanical engineering from Pennsylvania State University, University Park, PA, USA, in 2010. He recieved the Ph.D. degree in the Mechanical Engineering from Indian Institute of Science, Bengaluru, India in 2016. During his Ph.D. he worked in the MEMS laboratory at Centre for Nano Science and Engineering (CeNSE) under the guidance of Prof. Rudra Pratap. His research interests include MEMS design, simulation and characterisation, theoretical and experimental structural dynamics, experimental modal analysis, finite element modelling and simulation, and biomemetics.

Book Details

Number of Pages: 103
Dimensions: 5.83"x8.27"
Interior Pages: Full Color
Binding: Paperback (Perfect Binding)
Availability: In Stock (Print on Demand)

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