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Squeeze-film Effects in Modelling Dynamic MEMS ...
55,99 € *
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Squeeze-film Effects in Modelling Dynamic MEMS Devices ab 55.99 EURO

Anbieter: ebook.de
Stand: 13.08.2020
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Electrostatically Actuated MEMS for mass and ga...
49,90 € *
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In recent years, MEMS (Micro-Electro-Mechanical-Systems) sensors have triggered significant interest in utilizing their unique properties to detect with great accuracy physical quantities, such as small gas concentrations, minute biological entities, and very small changes in temperature and pressure. Particularly, mass detection of very small biological elements using MEMS devices, such as viruses, bacteria, and cells, has gained increasing attention in recent years. In the other hand, electrostatically actuated structures in flexure vibrations have not been commonly used for mass and gas detection applications due to their low quality factor. This is because of the dominant effect of squeeze-film damping and the complexity of keeping the testing chamber under the same conditions for real time measurement upon gas exposure and nitrogen purging. In this book we present theoretical and experimental investigations of several approaches for mass and gas detection based on the dynamics of micro-electro-mechanical systems MEMS beams.

Anbieter: Dodax
Stand: 13.08.2020
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Squeeze-film Effects in Modelling Dynamic MEMS ...
55,90 € *
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This work studies the squeeze film effects in dynamic MEMS devices. The emphasis is on the development of compact analytical models due to their amenability in device level simulations using lumped parameters. To provide context to the current work first the computational efficacy of lumped parameter modelling of dynamic MEMS devices is demonstrated in MATLAB/Simulink software environment using a MEMS gyroscope and a MEMS microphone as examples. This is followed by a detailed comparative study of equivalent electrical circuit models for a MEMS microphone wherein the importance of accurate extraction of lumped mass, stiffness and damping due to squeeze film is brought into focus. Consistent expressions are derived for equivalent mass and stiffness of plate and beam structures using Rayleigh's energy methods. Discrepancies in modelling compressible squeeze film are brought out and the need for an in depth study of squeeze film behaviour is highlighted leading to a strong motivation for the development of compact squeeze film models.

Anbieter: Dodax
Stand: 13.08.2020
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Vibrations of Elastic Systems
305,24 € *
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This work presents a unified approach to the vibrations of elastic systems as applied to MEMS devices, mechanical components, and civil structures.Applications include atomic force microscopes, energy harvesters, and carbon nanotubes and consider such complicating effects as squeeze film damping, viscous fluid loading, in-plane forces, and proof mass interactions with their elastic supports. These effects are analyzed as single degree-of-freedom models and as more realistic elastic structures. The governing equations and boundary conditions for beams, plates, and shells with interior and boundary attachments are derived by applying variational calculus to an expression describing the energy of the system. The advantages of this approach regarding the generation of orthogonal functions and the Rayleigh-Ritz method are demonstrated.A large number of graphs and tables are given to show the impact of various factors on the systems' natural frequencies, mode shapes, and responses.

Anbieter: Dodax
Stand: 13.08.2020
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Vibrations of Elastic Systems
249,98 € *
ggf. zzgl. Versand

This work presents a unified approach to the vibrations of elastic systems as applied to MEMS devices, mechanical components, and civil structures.Applications include atomic force microscopes, energy harvesters, and carbon nanotubes and consider such complicating effects as squeeze film damping, viscous fluid loading, in-plane forces, and proof mass interactions with their elastic supports. These effects are analyzed as single degree-of-freedom models and as more realistic elastic structures. The governing equations and boundary conditions for beams, plates, and shells with interior and boundary attachments are derived by applying variational calculus to an expression describing the energy of the system. The advantages of this approach regarding the generation of orthogonal functions and the Rayleigh-Ritz method are demonstrated.A large number of graphs and tables are given to show the impact of various factors on the systems' natural frequencies, mode shapes, and responses.

Anbieter: Dodax
Stand: 13.08.2020
Zum Angebot
MEMS Linear and Nonlinear Statics and Dynamics
159,99 € *
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MEMS Linear and Nonlinear Statics and Dynamics presents the necessary analytical and computational tools for MEMS designers to model and simulate most known MEMS devices, structures, and phenomena. This book also provides an in-depth analysis and treatment of the most common static and dynamic phenomena in MEMS that are encountered by engineers. Coverage also includes nonlinear modeling approaches to modeling various MEMS phenomena of a nonlinear nature, such as those due to electrostatic forces, squeeze-film damping, and large deflection of structures. The book also:Includes examples of numerous MEMS devices and structures that require static or dynamic modeling Provides code for programs in Matlab, Mathematica, and ANSYS for simulating the behavior of MEMS structures Provides real world problems related to the dynamics of MEMS such as dynamics of electrostatically actuated devices, stiction and adhesion of microbeams due to electrostatic and capillary forces MEMS Linear and Nonlinear Statics and Dynamics is an ideal volume for researchers and engineers working in MEMS design and fabrication.

Anbieter: Dodax
Stand: 13.08.2020
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MEMS Linear and Nonlinear Statics and Dynamics
192,59 € *
ggf. zzgl. Versand

MEMS Linear and Nonlinear Statics and Dynamics presents the necessary analytical and computational tools for MEMS designers to model and simulate most known MEMS devices, structures, and phenomena. This book also provides an in-depth analysis and treatment of the most common static and dynamic phenomena in MEMS that are encountered by engineers. Coverage also includes nonlinear modeling approaches to modeling various MEMS phenomena of a nonlinear nature, such as those due to electrostatic forces, squeeze-film damping, and large deflection of structures. The book also:Includes examples of numerous MEMS devices and structures that require static or dynamic modelingProvides code for programs in Matlab, Mathematica, and ANSYS for simulating the behavior of MEMS structuresProvides real world problems related to the dynamics of MEMS such as dynamics of electrostatically actuated devices, stiction and adhesion of microbeams due to electrostatic and capillary forces MEMS Linear and Nonlinear Statics and Dynamics is an ideal volume for researchers and engineers working in MEMS design and fabrication.

Anbieter: Dodax
Stand: 13.08.2020
Zum Angebot
Vibrations of Elastic Systems
292,90 CHF *
ggf. zzgl. Versand

This work presents a unified approach to the vibrations of elastic systems as applied to MEMS devices, mechanical components, and civil structures. Applications include atomic force microscopes, energy harvesters, and carbon nanotubes and consider such complicating effects as squeeze film damping, viscous fluid loading, in-plane forces, and proof mass interactions with their elastic supports. These effects are analyzed as single degree-of-freedom models and as more realistic elastic structures. The governing equations and boundary conditions for beams, plates, and shells with interior and boundary attachments are derived by applying variational calculus to an expression describing the energy of the system. The advantages of this approach regarding the generation of orthogonal functions and the Rayleigh-Ritz method are demonstrated. A large number of graphs and tables are given to show the impact of various factors on the systems' natural frequencies, mode shapes, and responses.

Anbieter: Orell Fuessli CH
Stand: 13.08.2020
Zum Angebot
MEMS Linear and Nonlinear Statics and Dynamics
187,90 CHF *
ggf. zzgl. Versand

MEMS Linear and Nonlinear Statics and Dynamics presents the necessary analytical and computational tools for MEMS designers to model and simulate most known MEMS devices, structures, and phenomena. This book also provides an in-depth analysis and treatment of the most common static and dynamic phenomena in MEMS that are encountered by engineers. Coverage also includes nonlinear modeling approaches to modeling various MEMS phenomena of a nonlinear nature, such as those due to electrostatic forces, squeeze-film damping, and large deflection of structures. The book also: Includes examples of numerous MEMS devices and structures that require static or dynamic modelingProvides code for programs in Matlab, Mathematica, and ANSYS for simulating the behavior of MEMS structuresProvides real world problems related to the dynamics of MEMS such as dynamics of electrostatically actuated devices, stiction and adhesion of microbeams due to electrostatic and capillary forcesMEMS Linear and Nonlinear Statics and Dynamics is an ideal volume for researchers and engineers working in MEMS design and fabrication.

Anbieter: Orell Fuessli CH
Stand: 13.08.2020
Zum Angebot