Operator-Based Vibration Control System Design of a Flexible Arm Using an SMA Actuator with Hysteresis

The <I>H</I>∞ control theory is currently the most powerful method for robust control theory, and is useful as well as practical because a great amount of software related to computer-aided control system design is available. However, it has some disadvantages in that the <I>H</I>∞ control system is a conservative one and cannot deal with robust performance. This is due to maximum singular values. Doyle proposed a structured singular value instead of a maximum singular value. This is called ∞ synthesis theory and actively deals with robust performance using D-K iteration. This paper is concerned with computeraided design of active vibration control systems based on the μ synthesis theory. First, the paradigm of the μ synthesis theory is described concerning μ, robust performance, and D-K iteration. Next, the relationships between the μ controller, robust performance, nominal performance, and robust stability are discussed for vibration control systems.

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1B11 Vehicle Stability Control System Design for a Micro Electric Vehicle with Four In-Wheel Motors Considering Energy Consumption Efficiency(The 12th International Conference on Motion and Vibration Control)

The Proceedings of the Symposium on the Motion and Vibration Control ◽

10.1299/jsmemovic.2014.12._1b11-1_ ◽

2014 ◽

Vol 2014.12 (0) ◽

pp. _1B11-1_-_1B11-11_

Author(s):

Simkil YUN ◽

Hidekazu NISHIMURA ◽

Shintaroh MURAKAMI

Keyword(s):

Control System ◽

Energy Consumption ◽

Vibration Control ◽

System Design ◽

Stability Control ◽

Control System Design ◽

Vehicle Stability ◽

Vehicle Stability Control ◽

Stability Control System ◽

Consumption Efficiency

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A New Modeling Technique and Control System Design of a Flexible Rotor Supported by Active Magnetic Bearings for Motion and Vibration Control

Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C ◽

10.1115/detc2003/vib-48411 ◽

2003 ◽

Cited By ~ 2

Author(s):

Mitsuhiro Ichihara ◽

Hideo Shida ◽

Takahito Sagane ◽

Hiroshi Tajima ◽

Muneharu Saigou ◽

...

Keyword(s):

Control System ◽

Vibration Control ◽

System Design ◽

Physical Model ◽

Magnetic Bearings ◽

Control System Design ◽

Active Magnetic Bearings ◽

Flexible Rotor ◽

Reduced Order ◽

And Control

This paper proposed a new modeling technique and control system design of a flexible rotor using active magnetic bearings (AMB) for motion and vibration control. The purpose of the research was to pass through a critical speed and achieve high-speed rotation. To achieve this, it is necessary to control both vibration and motion. Even though reduced order physical model [1] that we used before is available technique in expressing vibration, this technique cannot express motion. Thus we propose an extended reduced order physical model [2] that can simultaneously express motion and vibration. Further, by using the model we apply the design of a new controller that combined proportional integral derivative (PID) with linear quadratic (LQ) control to a flexible rotor. The procedure we propose is verified by simulations as being effective for a flexible rotor.

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