Dynamics and Control ENGD3038 | Position and Speed Control of 1DoF Torsional Mechanical System | Name: Elina Ioannou P12201589 Lecturer: Prof. Bogumil Ulanicki |

De Montfort University 2/24/2015 |

ContentsPage

Introduction………………………………………………………………………………….3 Parameters of the open loop 1DoF torsional system…………………….4 Position Proportional Control plotting data………………………………….6 Parameters of transient responses and their affect by gain Kp……..11 Position Proportional control with velocity feedback plotting data.15 Parameter of transient responses and their affect by gain Kd……….20 Speed Proportional feedback control……………………………………………23 The response of closed loop system due to increase of Kp values…24 Derivation of Closed loop system transfer function (fig. 2.2.2)………25 Changes of the location of poles due to changes of Kp and Kd
Values……………………………………………………………………………………………25
Conclusion……………………………………………………………………………………..28 References……………………………………………………………………………………..29

Introduction
All rotating machinery systems experience torsional oscillations to some degree during start up, shut down and continuous operation. Consequently, the evaluation and analysis of the torsional response characteristics of rotating and reciprocating equipment represent the reliability of a system. The Control and Dynamics Laboratory 1 was carried out to measure and investigate the dynamic characteristics of a simple single degree-of-freedom torsional mechanical system with the support of ECP program. The experimental system included of an electromechanical plant which consisted of torsion mechanism with attached moment of Inertia load in the form rotating disk and electric motor. There were two control problems; position and speed. Position control problem dealt with dynamic characteristics of a