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200 1 $a<<5.: Il >>Seicento e il Settecento$fVincenzo Golzio
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307   $a1.: XII, 591 p., [3] c. di tav. : ill. ; 2.: VII, P. 593-1292, [13] c. di tav. : ill.
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100   $a20070129d2007      uy             0
101 0 $aeng
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181   $ctxt
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200 10$aMechanical vibrations$b[electronic resource] $eactive and passive control /$fTomasz Krysinski, Franc?ois Malburet
210   $aLondon ;$aNewport Beach, CA $cISTE$dc2007
215   $a1 online resource (391 p.)
225 1 $aISTE ;$vv.103
300   $aDescription based upon print version of record.
311   $a1-905209-29-0 
320   $aIncludes bibliographical references and index.
327   $aMechanical Vibrations; Table of Contents; Foreword; Preface; Part I. Sources of Vibrations; Chapter 1. Unbalance and Gyroscopic Effects; 1.1. Introduction; 1.1.1. Physico-mathematical model of a rotating system; 1.1.2. Formation of equations and analysis; 1.2. Theory of balancing; 1.2.1. Balancing machine or "balancer"; 1.2.1.1. The soft-bearing machine; 1.2.1.2. The hard-bearing machine; 1.2.2. Balancing in situ; 1.2.2.1. The method of separate planes; 1.2.2.2. The method of simultaneous planes - influence coefficients; 1.2.3. Example of application: the main rotor of a helicopter
327   $a1.2.3.1. Bench test phase on the ground1.2.3.2. Test phase on a helicopter in flight; 1.3. Influence of shaft bending; 1.3.1. The notion of critical speed; 1.3.2. Forward precession of the flexible shaft; 1.3.2.1. Subcritical speed (: ?<?cr); 1.3.2.2. Resonance (: ?<?cr); 1.3.2.3. Supercritical speed (: ?<?cr); 1.3.3. Balancing flexible shafts; 1.3.4. Example of application: transmission shaft of the tail rotor of a helicopter; 1.4. Gyroscopic effects; 1.4.1. Forward or backward motion; 1.4.2. Equations of motion; 1.4.2.1. Natural angular frequencies (shaft off motion)
327   $a1.4.2.2. Critical speeds during forward precession1.4.2.3. Critical speeds during retrograde precession; Chapter 2. Piston Engines; 2.1. Introduction; 2.2. Excitations generated by a piston engine; 2.2.1. Analytic determination of an engine torque; 2.2.2. Engine excitations on the chassis frame; 2.2.2.1. Knocking load; 2.2.2.2. Pitch torque; 2.2.2.3. Review of actions for a four phase cylinder engine; 2.2.3. The notion of engine balancing; 2.2.3.1. Balancing the knocking loads; 2.2.3.2. Balancing the galloping torque; 2.3. Line shafting tuning; 2.3.1. The notion of tuning
327   $a2.3.2. Creation of the equations2.3.3. Line shafting optimization; 2.3.3.1. Results for a non-optimized line shafting; 2.3.3.2. Results for an optimized line shafting; Chapter 3. Dynamics of a Rotor; 3.1. Introduction; 3.2. Description of the blade/hub relationship; 3.2.1. Some historical data; 3.2.2. Hinge link of the blade and the hub; 3.2.2.1. Formation of the equations for blade motion; 3.2.2.2. Homokinetic rotor; 3.3. Rotor technologies; 3.3.1. Articulated rotors; 3.3.1.1. Conventional articulated rotors; 3.3.1.2. Starflex® and Spheriflex® rotors; 3.3.2. Hingeless rotors
327   $a3.3.3. Hingeless rotor3.4. Influence of alternate aerodynamic loads; 3.4.1. Load characterization; 3.4.1.1. Loads on a blade; 3.4.1.2. Dynamic response of a blade; 3.4.1.3. Loads transmitted by a mode i; 3.4.2. Analysis of loads transmitted to the rotor hub; 3.4.2.1. Loads transmitted to the rotor; 3.4.2.2. Synthesis of rotor loads on the rotor mast; 3.4.3. Dynamic optimization of a blade; 3.4.3.1. Introduction; 3.4.3.2. Study of the example of an optimized blade; 3.4.3.3. Contribution of the second flapping mode; Chapter 4. Rotor Control; 4.1. Introduction; 4.2. Blade motions
327   $a4.2.1. Flapping equation - general case
330   $aFor all rotational machines, the analysis of dynamic stresses and the resulting vibrations is an important subject. When it comes to helicopters and piston engines, this analysis becomes crucial. From the design of parts working under stress to the reduction of the vibration levels, the success of a project lies mainly in the hands of the dynamicists. The authors have combined their talents and experience to provide a complete presentation on the issues involved. Part one describes, in concrete terms, the main dynamic phenomena and how they can be observed in reality. Part two presents infor
410  0$aISTE
606   $aRotors$xVibration
606   $aDamping (Mechanics)
606   $aStructural control (Engineering)
615  0$aRotors$xVibration.
615  0$aDamping (Mechanics)
615  0$aStructural control (Engineering)
676   $a620.3
676   $a621.8/11
676   $a621.811
700   $aKrysinski$b Tomasz$0927361
701   $aMalburet$b Franc?ois$0927362
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801  2$bMiAaPQ
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912   $a996216941603316
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