Dynamics and Control of MachinesSpringer Science & Business Media, 13.03.2000 - 233 Seiten Basic models and concepts of machine dynamics and motion control are presented in the order of the principal steps of machine design. The machine is treated as a coupled dynamical system, including drive, mechanisms and controller, to reveal its behavior at different regimes through the interaction of its units under dynamic and processing loads. The main dynamic effects in machines are explained. The influence of component compliances on accuracy, stability and efficiency of the machines is analyzed. Methods for decreasing internal and external vibration activity of machines are described. The dynamic features of digital control are considered. Special attention is given to machines with intense dynamic behavior: resonant and hand-held percussion ones. Targeted to engineers as well as to lecturers and advanced students. |
Inhalt
Chapter 1 Introduction to machine dynamics | 1 |
12 Dynamic models of drivers | 3 |
13 Dynamic models of mechanical systems | 13 |
14 Operating characteristics Resistance forces | 18 |
15 Motion control systems | 21 |
Chapter 2 Dynamics of single driver machines with rigid components | 29 |
22 Equations of machine motion Motion regimes | 33 |
23 Steady state motion dynamics | 36 |
52 Structure of control systems with feedback | 110 |
53 Stabilisation of velocity in machine with rigid components | 125 |
54 Efficiency and stability in closedloop automatic control system | 136 |
55 Stabilisation of velocity in machine with flexible transmission mechanism | 144 |
Chapter 6 Dynamics of resonant machines | 153 |
62 Generalised model of a vibration machine | 161 |
63 Vibration machines with forced excitation | 164 |
64 Vibration machines with single degree of freedom under forced excitation Resonant machines | 166 |
24 Methods to reduce internal vibration in machine | 45 |
25 Transient processes | 49 |
26 Vibration of a machine on a flexible foundation | 55 |
Chapter 3 Dynamics of machines with flexible transmission mechanism | 63 |
32 Equations of motion for machine with a flexible transmission mechanism | 69 |
33 Steady state motion | 70 |
34 Transient processes | 76 |
Chapter 4 Dynamics of machines with multimass chained mechanical system | 83 |
42 Equations of motion for chained system | 85 |
43 Transfer functions and frequency characteristics of chained system | 88 |
44 Steady state motion of machine with chained mechanical system | 97 |
45 Transient processes in machine with chained mechanical system | 103 |
Chapter 5 Dynamics of machines with program control system | 107 |
65 Vibration machines with kinematic excitation | 172 |
66 Dynamic characteristics of vibration systems | 175 |
67 Operating loads Nonlinear effects in resonant machines | 182 |
68 Methods for the tuning of resonant machines | 196 |
69 Autoresonant excitation of vibration machines | 203 |
Chapter 7 Dynamics of handheld percussion machines | 207 |
72 Excitation of percussion machine as a problem of optimal control | 211 |
73 Quasioptimal excitations with condensed acceleration impulses | 216 |
74 Dynamics of rotarypercussion machines | 219 |
Bibliography | 225 |
| 229 | |
Andere Ausgaben - Alle anzeigen
Dynamics and Control of Machines V.K. Astashev,V.I. Babitsky,M.Z. Kolovsky Eingeschränkte Leseprobe - 2012 |
Dynamics and Control of Machines V.K. Astashev,V.I. Babitsky,M.Z. Kolovsky Keine Leseprobe verfügbar - 2012 |
Dynamics and Control of Machines V.K. Astashev,V.I. Babitsky,M.Z. Kolovsky Keine Leseprobe verfügbar - 2012 |
Häufige Begriffe und Wortgruppen
a₁ acceleration alternating current amplitude-frequency characteristics angle of rotation angular velocity antiresonant autoresonance coefficient constant control system corresponding cut-off frequency deformation displacement dissipative forces driver characteristic driver output dynamic characteristic dynamic errors dynamic model dynamic stiffness energy equations of motion excitation force feedback flexible formula frequency characteristics generalised coordinates harmonic hodograph impact increase inertia input kinematic excitation kinematic pairs linear linearisation logarithmic amplitude characteristic logarithmic phase M₁ M₂ mass mechanical system method moment of inertia natural frequency nonlinear obtain occurs open-loop system operating loads operating process parameters periodic function perturbation phase program control programmed motion q₁ regime resistance force resonant frequency resonant machines rigid components Schematic selsyns shown in Fig signal solution stabilise start-up steady state motion striker Substituting torque transfer function transformation transmission mechanism vibration amplitude vibration exciter vibration machine vibration system vibro-impact w₁(p x₁ zero
Verweise auf dieses Buch
Ultrasonic Processes and Machines: Dynamics, Control and Applications V.K. Astashev,V. I. Babitsky Eingeschränkte Leseprobe - 2007 |