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Modeling and Analysis of Passive Vibration Isolation Systems

2021-08-31 Technology & Engineering
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Release : 2021-08-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 219/5 ( reviews)

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Book Synopsis Modeling and Analysis of Passive Vibration Isolation Systems by : Sudhir Kaul

Download or read book Modeling and Analysis of Passive Vibration Isolation Systems written by Sudhir Kaul. This book was released on 2021-08-31. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and Analysis of Passive Vibration Isolation Systems discusses a wide range of dynamic models that can be used for the design and analysis of passive vibration isolation systems. These models range from linear viscoelastic single degree-of-freedom systems to multiple degree-of-freedom nonlinear systems. They can be used to evaluate hyperelasticity and creep, and to represent the inertia effect for an evaluation of vibroacoustic characteristics at high frequencies. This book also highlights specific nonlinear behavior, displacement-limiting designs, hyperelastic behavior, and characteristics associated with elastomeric materials for each model. It also identifies key attributes, limitations, and constraints, providing a holistic reference that can be used for the design and analysis of passive vibration isolators. Modeling and Analysis of Passive Vibration Isolation Systems serves as a reference for engineers and researchers involved in the design, development, modeling, analysis, and testing of passive vibration isolation systems and as a reference for a graduate course in vibration modeling and analysis. Outlines the use of multiple models for optimal passive vibration isolation system design Discusses the effects system design has on subsequent product development components and parameters Includes applied examples from the automotive, aerospace, civil engineering and machine tool industries Presents models that can be extended or modified to investigate different means of passive isolation, nonlinearities, and specific design configurations Considers specific elastomer characteristics such as Mullins and Payne effects for theoretical modeling and analysis

Modeling Techniques for Vibration Isolation in Motorcycles

2011-01
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Release : 2011-01
Genre :
Kind : eBook
Book Rating : 274/5 ( reviews)

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Book Synopsis Modeling Techniques for Vibration Isolation in Motorcycles by : Sudhir Kaul

Download or read book Modeling Techniques for Vibration Isolation in Motorcycles written by Sudhir Kaul. This book was released on 2011-01. Available in PDF, EPUB and Kindle. Book excerpt: This book presents several dynamic models and meta- models in order to evaluate the quality of vibration isolation in a motorcycle. All models are used to solve the engine mount optimization problem so as to minimize the forces transmitted to the frame while meeting packaging constraints. This book is divided into three main sections. The first section develops mathematical models to capture the quality of vibration isolation in a motorcycle. The second section solves the optimization problem using the models developed in the first section. The third section develops meta-models from the theoretical models in order to simplify the governing model and reduce computational effort required for solving the optimization problem. Several examples are presented throughout the book. The models and techniques presented in this book can be used for the design and analysis of passive vibration isolation systems for motorcycles. The meta-modeling techniques developed in this book yield simplified input-output relationships between variables of interest, providing a better understanding of the sensitivity of vibration isolation to the governing variables.

Modelling and Control Design of Vibration Reduction Systems

2018-12-14 Technology & Engineering
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Release : 2018-12-14
Genre : Technology & Engineering
Kind : eBook
Book Rating : 474/5 ( reviews)

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Book Synopsis Modelling and Control Design of Vibration Reduction Systems by : Tomasz Krzyzynski

Download or read book Modelling and Control Design of Vibration Reduction Systems written by Tomasz Krzyzynski. This book was released on 2018-12-14. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the modelling and optimisation of vibration reduction systems in an integrated fashion using nonlinear equations of motion. It proposes an effective optimisation method for determining the basic characteristics of the non-linear visco-elastic elements used in passive vibration reduction systems. In the case of semi-active and active vibration isolators, a design process of the advanced control systems is proposed that makes possible to optimise the controller settings relatively to the selected vibro-isolation criteria. The approach developed here is subsequently tested by means of experimental investigations conducted on various sample vibration reduction systems: passive, semi-active and active. The book presents a biomechanical modelling approach that allows users to select the properties of vibro-isolation systems for different types of oscillation and different optimisation criteria – and can significantly reduce the harmful vibrations that can affect the human body in the process. Further, the book equips readers to evaluate the viscoelastic characteristics of passive systems and design control systems for semi-active and active systems. Modelling and Control Design of Vibration Reduction Systems offers a valuable guide for researchers and practitioners alike. It also provides students and academics with systematic information on the procedures to be followed in the design process for semi-active or active vibration reduction systems.

An Investigation of Vibration Isolation Systems Using Active, Semi-active and Tunable Passive Mechanisms, with Applications to Vehicle Suspensions

1990 Automobiles
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Release : 1990
Genre : Automobiles
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis An Investigation of Vibration Isolation Systems Using Active, Semi-active and Tunable Passive Mechanisms, with Applications to Vehicle Suspensions by : Hong Su

Download or read book An Investigation of Vibration Isolation Systems Using Active, Semi-active and Tunable Passive Mechanisms, with Applications to Vehicle Suspensions written by Hong Su. This book was released on 1990. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, an analytical investigation on active, semi-active and passive vibration control mechanisms is presented in order to achieve improved shock and vibration isolation of mechanical systems, especially ground vehicle applications. A hybrid active vibration isolation system, incorporating an electro-magnetic force generator along with passive damping and spring elements, is mathematically modeled based on fundamental physical laws and taking into account the generator dynamics. Complete vibration isolation characteristics of the hybrid active control system are evaluated for various feedback variables and control schemes, using numerical simulations. Influence of the force generator dynamics on vibration isolation performance is illustrated through the simulation results. A concept of tunable pressure limiting modulation is proposed in hydraulic damper systems. A hydraulic orifice damper is modified by using the proposed tunable pressure limiting modulation to achieve variable damping in vibration isolation systems, without requiring any external energy source, sophisticated control devices and feedback instrumentation that are essential for active and semi-active isolators. The fluid flow equations are employed to develop the nonlinear mathematical model of the hydraulic damper, incorporating the fluid and mechanical compliance, and the dynamics of the pressure limiting mechanism. The computer simulation reveals that the shock and vibration isolation performance of the tunable pressure limited hydraulic damper systems is comparable to that of the semi-active 'on-off' vibration control systems. A generalized harmonic linearization technique, based on a principle of energy similarity of dynamic elements, is proposed to derive equivalent linear representations of both nonlinear damping and spring elements, in the frequency domain. An analysis of the nonlinear in-plane vehicle model, with air-springs, orifice damping and pressure limiting modulation due to tunable hydraulic shock absorbers, is carried out to establish the stochastic response to random road inputs in terms of power spectral density, and to illustrate the improved vehicle ride performance due to tunable shock absorbers. An interconnected hydro-pneumatic suspension with tunable pressure limiting mechanism is presented to achieve improved vehicle ride and handling performance. Analysis of a roll plane model of a vehicle employing the tunable interconnected suspension shows that the connections of fluid flow within the interconnected suspension provide an enhanced static roll stability; while the tunable pressure limiting modulation between the strut and the accumulator of each suspension unit offers an improved vehicle ride performance.

Passive Vibration Isolation

2003 Damping
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Release : 2003
Genre : Damping
Kind : eBook
Book Rating : 008/5 ( reviews)

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Book Synopsis Passive Vibration Isolation by : Eugene I. Rivin

Download or read book Passive Vibration Isolation written by Eugene I. Rivin. This book was released on 2003. Available in PDF, EPUB and Kindle. Book excerpt: "This book provides a comprehensive treatment of the principles of design and means for realization of passive vibration isolation systems for real life objects. A special emphasis is given to effective techniques and methods that are not yet widely used in the practice of vibration isolation in industry." "The book is written with practitioners in mind and many of the problems addressed and the solutions presented are relevant not only to the isolation of stationary sensitive equipment (the main thrust of the book), but also to civil engineering and transport applications."--BOOK JACKET.

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