Nicolae Lobontiu – författare

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality,  authenticity, or access to any online entitlements included with the product.Resonators act as a frequency reference or to filter specific frequencies. Used in such products as cell phones or computers, resonators will allow the user to take advantage of high bandwidths to process and send greater amounts of data. When used in medical devises such as MRIs they can detect microorganisms and biological molecules. The dilemma that Researcher face when building these micro resonators is that the smaller a resonator gets the less reliable it becomes. Based on his research at Cornell University, the author employs current modeling and fabrication technologies to bring a solution to this seemingly insurmountable problem one step closer. Microresonators are fundamental components in a host of MEMS applications beginning with the auto sector (safety systems, stability and rollover, occupant detection, tire pressure monitoring, biometric sensors for comfort programs), to the telecommunication industry (especially the radio-frequency domain with implementations such as switches, tunable capacitors and mechanical filters implemented in wavelength division multiplexing. Different research and development groups in

Engineering system dynamics focuses on deriving mathematical models based on simplified physical representations of actual systems, such as mechanical, electrical, fluid, or thermal, and on solving these models for analysis or design purposes. System Dynamics for Engineering Students: Concepts and Applications features a classical approach to system dynamics and is designed to be utilized as a one-semester system dynamics text for upper-level undergraduate students with emphasis on mechanical, aerospace, or electrical engineering. It is the first system dynamics textbook to include examples from compliant (flexible) mechanisms and micro/nano electromechanical systems (MEMS/NEMS). This new second edition has been updated to provide more balance between analytical and computational approaches; introduces additional in-text coverage of Controls; and includes numerous fully solved examples and exercises. Features a more balanced treatment of mechanical, electrical, fluid, and thermal systems than other texts Introduces examples from compliant (flexible) mechanisms and MEMS/NEMS Includes a chapter on coupled-field systems Incorporates MATLAB� and Simulink� computational software tools throughout the book Supplements the text with extensive instructor support available online: instructor's solution manual, image bank, and PowerPoint lecture slides

NEW FOR THE SECOND EDITION

Provides more balance between analytical and computational approaches, including integration of Lagrangian equations as another modelling technique of dynamic systems Includes additional in-text coverage of Controls, to meet the needs of schools that cover both controls and system dynamics in the course Features a broader range of applications, including additional applications in pneumatic and hydraulic systems, and new applications in aerospace, automotive, and bioengineering systems, making the book even more appealing to mechanical engineers Updates include new and revised examples and end-of-chapter exercises with a wider variety of engineering applications

System Dynamics for Engineering Students: Concepts and Applications, Third Edition provides a classical approach to system dynamics that is designed for a one-semester course for upper-level undergraduate students. It focuses on mechanical, aerospace, and electrical engineering, featuring examples from compliant mechanisms and MEMS/NEMS. The text aims to offer a robust understanding of system dynamics, helping students grasp both fundamental and complex concepts. The updated edition has been reorganized and updated to enhance the flow for instructors and students. It includes a greater variety of topics, applications, and real-world examples, along with more basic examples and end-of-chapter problems.Additionally, the edition offers comprehensive analysis and design examples, ensuring a well-rounded educational experience.

Provides more balance between analytical and computational approachesProposes an updated chapter sequence to improve the flow and connectivity of system dynamicsIncludes a three-chapter Controls section to meet the needs of programs that cover both system dynamics and controls in the courseIntegrates Lagrange’s equations as another modeling technique of dynamic systemsUtilizes both analytical methods and MATLAB/Simulink to solve examples

With a rigorous and comprehensive coverage, the second edition of Compliant Mechanisms: Design of Flexure Hinges provides practical answers to the design and analysis of devices that incorporate flexible hinges. Complex-shaped flexible-hinge mechanisms are generated from basic elastic segments by means of a bottom-up compliance (flexibility) approach. The same compliance method and the classical finite element analysis are utilized to study the quasi-static and dynamic performances of these compliant mechanisms. This book offers easy-to-use mathematical tools to investigate a wealth of flexible-hinge configurations and two- or three-dimensional compliant mechanism applications.FEATURES Introduces a bottom-up compliance-based approach to characterize the flexibility of new and existing flexible hinges of straight- and curvilinear-axis configurations Develops a consistent linear lumped-parameter compliance model to thoroughly describe the quasi-static and dynamic behavior of planar/spatial, serial/parallel flexible-hinge mechanisms Utilizes the finite element method to analyze the quasi-statics and dynamics of compliant mechanisms by means of straight- and curvilinear-axis flexible-hinge elements Covers miscellaneous topics such as stress concentration, yielding and related maximum load, precision of rotation of straight- and circular-axis flexible hinges, temperature effects on compliances, layered flexible hinges and piezoelectric actuation/sensing Offers multiple solved examples of flexible hinges and flexible-hinge mechanisms.This book should serve as a reference to students, researchers, academics and anyone interested to investigate precision flexible-hinge mechanisms by linear model-based methods in various areas of mechanical, aerospace or biomedical engineering, as well as in robotics and micro-/nanosystems.

Dynamics of Microelectromechanical Systems is a systematic overview of the dynamics of MEMS (microelectromechanical systems), microstructures, and their responses. The focus is on the mecahnical/structural micro domain and the compliant nature of mechanical transmission.Features of this work include:An in-depth treatment of problems that involve reliable modeling, analysis and design,Analytical models with correct dependences on service dimensions,Cantilever based systems for nanofabrication researchers and designers, andDynamics of complex spring and beam microsystems.This material contains numerous fully-solved examples as well as many end-of-the-chapter problems. This is a follow up to the book, Mechanics of Microelectromechanical Systems, by Lobontiu and Garcia (Springer 2004), but the material in this new book is self-contained.  An instructor's solution manual is available on the book's webpage at springer.com.Dynamics of Microelectromechanical Systems is a timely text and reference for microstructural engineers, microengineers, and MEMS specialists.

This book offers a comprehensive coverage to the mechanics of microelectromechanical systems (MEMS), which are analyzed from a mechanical engineer’s viewpoint as devices that transform an input form of energy, such as thermal, electrostatic, electromagnetic or optical, into output mechanical motion (in the case of actuation) or that can operate with the reversed functionality (as in sensors) and convert an external stimulus, such as mechanical motion, into (generally) electric energy. The impetus of this proposal stems from the perception that such an approach might contribute to a more solid understanding of the principles governing the mechanics of MEMS, and would hopefully enhance the efficiency of modeling and designing reliable and desirably-optimized microsystems. The work represents an attempt at both extending and deepening the mechanical-based approach to MEMS in the static domain by providing simple, yet reliable tools that are applicable to micromechanism design through current fabrication technologies. Lumped-parameter stiffness and compliance properties of flexible components are derived both analytically (as closed-form solutions) and as simplified (engineering) formulas. Also studied are the principal means of actuation/sensing and their integration into the overall microsystem. Various examples of MEMS are studied in order to better illustrate the presentation of the different modeling principles and algorithms. Through its objective, approach and scope, this book offers a novel and systematic insight into the MEMS domain and complements existing work in the literature addressing part of the material developed herein.

With a rigorous and comprehensive coverage, the second edition of Compliant Mechanisms: Design of Flexure Hinges provides practical answers to the design and analysis of devices that incorporate flexible hinges. Complex-shaped flexible-hinge mechanisms are generated from basic elastic segments by means of a bottom-up compliance (flexibility) approach. The same compliance method and the classical finite element analysis are utilized to study the quasi-static and dynamic performances of these compliant mechanisms. This book offers easy-to-use mathematical tools to investigate a wealth of flexible-hinge configurations and two- or three-dimensional compliant mechanism applications.FEATURES Introduces a bottom-up compliance-based approach to characterize the flexibility of new and existing flexible hinges of straight- and curvilinear-axis configurations Develops a consistent linear lumped-parameter compliance model to thoroughly describe the quasi-static and dynamic behavior of planar/spatial, serial/parallel flexible-hinge mechanisms Utilizes the finite element method to analyze the quasi-statics and dynamics of compliant mechanisms by means of straight- and curvilinear-axis flexible-hinge elements Covers miscellaneous topics such as stress concentration, yielding and related maximum load, precision of rotation of straight- and circular-axis flexible hinges, temperature effects on compliances, layered flexible hinges and piezoelectric actuation/sensing Offers multiple solved examples of flexible hinges and flexible-hinge mechanisms.This book should serve as a reference to students, researchers, academics and anyone interested to investigate precision flexible-hinge mechanisms by linear model-based methods in various areas of mechanical, aerospace or biomedical engineering, as well as in robotics and micro-/nanosystems.

Dynamics of Microelectromechanical Systems is a systematic overview of the dynamics of MEMS (microelectromechanical systems), microstructures, and their responses. The focus is on the mecahnical/structural micro domain and the compliant nature of mechanical transmission.Features of this work include:An in-depth treatment of problems that involve reliable modeling, analysis and design,Analytical models with correct dependences on service dimensions,Cantilever based systems for nanofabrication researchers and designers, andDynamics of complex spring and beam microsystems.This material contains numerous fully-solved examples as well as many end-of-the-chapter problems. This is a follow up to the book, Mechanics of Microelectromechanical Systems, by Lobontiu and Garcia (Springer 2004), but the material in this new book is self-contained.  An instructor's solution manual is available on the book's webpage at springer.com.Dynamics of Microelectromechanical Systems is a timely text and reference for microstructural engineers, microengineers, and MEMS specialists.