Download e-book for kindle: Active and Passive Vibration Control of Structures by Peter Hagedorn, Gottfried Spelsberg-Korspeter

By Peter Hagedorn, Gottfried Spelsberg-Korspeter

ISBN-10: 3709118204

ISBN-13: 9783709118207

ISBN-10: 3709118212

ISBN-13: 9783709118214

Active and Passive Vibration keep an eye on of constructions shape a subject matter of very real curiosity in lots of assorted fields of engineering, for instance within the car and aerospace undefined, in precision engineering (e.g. in huge telescopes), and in addition in civil engineering. The papers during this quantity collect engineers of alternative history, and it fill gaps among structural mechanics, vibrations and glossy keep watch over conception. additionally hyperlinks among the various functions in structural regulate are shown.

Show description

Read or Download Active and Passive Vibration Control of Structures PDF

Similar robotics & automation books

Download e-book for iPad: Programming Lego Mindstorms with Java (With CD-ROM) by Dario Laverde, Giulio Ferrari, Jurgen Stuber

Lego robots! the 1st ebook that teaches you to software Lego Mindstorms utilizing Java Lego Mindstorms are a brand new new release of Lego Robots that may be manipulated utilizing microcomputers, gentle and contact sensors, an infrared transmitter and CD-ROMs. on account that Lego introduced Lego Mindstorms in past due 1998 revenues have skyrocketed - without signal of slowing down.

New PDF release: Intelligente Verfahren: Identifikation und Regelung

Das Buch „Intelligente Verfahren“ führt anschaulich und verständlich in das Gebiet der intelligenten Verfahren ein. In geschlossenen Darstellungen zeigt das Buch zuerst die theoretischen Grundlagen und anschließend praktische Beispiele, wobei bei den Beispielen auch fehlerhafte Ansätze gezeigt werden.

Download e-book for kindle: Analysis of periodically time-varying systems by John A. Richards

A few of the sensible innovations built for treating platforms defined by means of periodic differential equations have arisen in numerous fields of program; con­ sequently a few systems haven't constantly been identified to staff in parts that will gain considerably from them. additionally, fresh analytical equipment are computationally established in order that it now turns out an opportune time for an applications-oriented ebook to be made to be had that, in a feeling, bridges the fields during which equations with periodic coefficients come up and which pulls jointly analytical equipment which are applied effectively.

Read e-book online Start-up - A Technician's Guide PDF

Whilst new vegetation or platforms go browsing, regulate structures Technicians face targeted demanding situations. The start-up you're concerned with could be a newly outfitted, considerably replaced, or the start-up of a component to a producing facility. during this ebook the writer explores and explains the the most important position a technician performs during this technique.

Extra info for Active and Passive Vibration Control of Structures

Example text

In the case of a simply-supported uniform Euler-Bernoulli beam, we have the same expression for βn given by (211), as one can easily check. Therefore, the circular natural frequencies of an Euler-Bernoulli beam are obtained by substituting the expression of β from (211) in (204), and solving for ωn . This yields ωnEB = n2 π 2 l2 EI , ρA n = 1, 2, . . , ∞. , sr = l2 A/I lower modes given by the Rayleigh beam model tend to be the same as those of those obtained from the Euler-Bernoulli beam model (since 1 + n2 π 2 I/l2 A ≈ 1).

28 P. Hagedorn n3 m, r g b3 q2 Ω b2 q1 b1 n1 n2 Figure 2: Rolling Penny The Rolling Penny As an example for gyroscopic stabilization consider the rolling penny represented in Figure 2. The linearized quations of motion are mr2 3 4 0 0 0 q¨1 + mr2 5 3 q ¨ − 2 4 2Ω 3 2Ω 0 0 q˙1 + 0 q˙2 0 q1 0 = . (123) −mgr q2 0 Obviously the system has a positive definite mass matrix, a negative semidefinite stiffness matrix and is gyroscopic. We first treat the case Ω = 0. The two equations of motion are then uncoupled and the system has the eigenvalues λ1 = 0, λ2 = 0, λ3 = 4 g , 5 r λ4 = − 4 g 5 r (124) and therefore an unstable trivial solution.

From elementary theory of elasticity (see, for example, Timoshenko and Goodier (1970)), it is known that when the beam is deflected, certain hypothetical longitudinal lines or fibers are elongated, while others are compressed. There, however, exist fibers which are neither elongated nor compressed, but are merely deflected. Such a fiber is called the neutral fiber, and is shown in Fig. 5. It Mechanical Systems: Equations of Motion and Stability 39 is assumed that cross-sections orthogonal to the neutral fiber before deformation are are also orthogonal to the neutral fiber in the deformed beam.

Download PDF sample

Active and Passive Vibration Control of Structures by Peter Hagedorn, Gottfried Spelsberg-Korspeter


by Donald
4.4

Rated 4.73 of 5 – based on 25 votes