scholarly journals Bilinear Control of a Single-Degree-of-Freedom Isolation System by a Hybrid Magnetic Damper Using Rare-Earth Magnets and Electromagnets.

2002 ◽  
Vol 68 (674) ◽  
pp. 2949-2955
Author(s):  
Hiroyuki ICHIHARA ◽  
Naoto ABE ◽  
Kenichiro OHMATA ◽  
Noburo EHARA
Keyword(s):  
Rare Earth ◽  
Degree Of Freedom ◽  
Isolation System ◽  
Single Degree Of Freedom ◽  
Bilinear Control ◽  
Single Degree

A Modular-Type Three-Axis Vibration Isolation System Using Negative Stiffness

2010 ◽  
Author(s):  
Md. Emdadul Hoque ◽  
Takeshi Mizuno ◽  
Yuji Ishino ◽  
Masaya Takasaki
Keyword(s):  
Vibration Isolation ◽  
Degree Of Freedom ◽  
Experimental Results ◽  
Negative Stiffness ◽  
Isolation System ◽  
Single Degree Of Freedom ◽  
Vibration Isolation System ◽  
Single Degree ◽  
In Series ◽  
Isolation Systems

A vibration isolation system is presented in this paper which is developed by the combination of multiple vibration isolation modules. Each module is fabricated by connecting a positive stiffness suspension in series with a negative stiffness suspension. Each vibration isolation module can be considered as a self-sufficient single-degree-of-freedom vibration isolation system. 3-DOF vibration isolation system can be developed by combining three modules. As the number of motions to be controlled and the number of actuators are equal, there is no redundancy in actuators in such vibration isolation systems. Experimental results are presented to verify the proposed concept of the development of MDOF vibration isolation system using vibration isolation modules.

Optimal Isolation of a Single-Degree-of-Freedom System With Quadratic-Velocity Damping

1981 ◽  
Vol 48 (3) ◽  
pp. 676-678 ◽  
Author(s):  
T. L. Alley
Keyword(s):  
Closed Form ◽  
Simple Formula ◽  
Degree Of Freedom ◽  
Isolation System ◽  
Single Degree Of Freedom ◽  
Single Degree ◽  
Linear Spring ◽  
Velocity Input

The response of a mass isolated by a linear spring and a quadratic-velocity damper subjected to a step-and-decay velocity input at the base is found in closed form. This solution leads immediately to the optimal isolation system for this input. The parameters of the optimal isolation system are given by a simple formula.

Kinematic comparison of single degree-of-freedom robotic gait trainers

2021 ◽  
Vol 159 ◽  
pp. 104258
Author(s):  
Jeonghwan Lee ◽  
Lailu Li ◽  
Sung Yul Shin ◽  
Ashish D. Deshpande ◽  
James Sulzer
Keyword(s):  
Degree Of Freedom ◽  
Single Degree Of Freedom ◽  
Single Degree ◽  
Robotic Gait
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