Stiff and soft active control of friction by vibrations and their energy efficiency

2018 ◽  
Vol 82 (4) ◽  
pp. 331-339 ◽  
Author(s):  
J. Benad ◽  
M. Popov ◽  
K. Nakano ◽  
V. L. Popov
Keyword(s):  
Energy Efficiency ◽  
Active Control ◽  
Active Control Of Friction

Active Control of Shock

2005 ◽  
Author(s):  
Hidekazu Nishimura ◽  
Dezhang Wang ◽  
Yoichi Amano ◽  
Taro Shimogo
Keyword(s):  
Energy Efficiency ◽  
Energy Balance ◽  
Active Control ◽  
Contact Stiffness ◽  
State Control ◽  
Final State ◽  
Time Deformation ◽  
Collision Problem ◽  
Deformation Ratio ◽  
Predetermined Time

In this paper we deal with active control of shock in a collision problem between two objects. In order to make it clear how the deformation of the shock-receiving object can be maximized while minimizing the deformation of the shock-giving object and how energy can be transmitted unilaterally, the relationships among contact stiffness, deformation time, deformation ratio and energy balance are discussed. The final-state control is applied to obtain a feedforward input to deform the shock-receiving object by a desired amount in a predetermined time. Thus, the energy balance and the energy efficiency are verified. Furthermore we examine the conditions necessary to realize a ‘dynamical diode’ that can transmit energy unilaterally from the shock-giving object to the shock-receiving object. It is demonstrated experimentally that the appropriate feedforward input can be obtained by final-state control under specified conditions of contact stiffness and deformation time.

SEMI-ACTIVE CONTROL OF FRICTION DAMPERS

1997 ◽  
Vol 202 (2) ◽  
pp. 203-218 ◽  
Author(s):  
P. Dupont ◽  
P. Kasturi ◽  
A. Stokes
Keyword(s):  
Active Control ◽  
Friction Dampers ◽  
Active Control Of Friction

scholarly journals Application of Innovative Technologies for Active Control and Energy Efficiency in Water Supply Systems

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3278
Author(s):  
Armando Carravetta ◽  
Maurizio Giugni ◽  
Stefano Malavasi
Keyword(s):  
Energy Efficiency ◽  
Water Supply ◽  
Active Control ◽  
Energy Use ◽  
Water Systems ◽  
Water Supply Systems ◽  
Innovative Technologies ◽  
New Perspective ◽  
Supply Systems ◽  
Anthropic Pressure

The larger anthropic pressure on the Water Supply Systems (WSS) and the increasing concern for the sustainability of the large energy use for water supply, transportation, distribution, drainage and treatment are determining a new perspective in the management of water systems [...]

ACTIVE CONTROL OF FRICTION-DRIVEN OSCILLATIONS

1996 ◽  
Vol 193 (1) ◽  
pp. 417-426 ◽  
Author(s):  
Maria A. Heckl ◽  
I.D. Abrahams
Keyword(s):  
Active Control ◽  
Active Control Of Friction

scholarly journals Active control of friction by transverse oscillations

Friction ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 74-85 ◽  
Author(s):  
J. Benad ◽  
K. Nakano ◽  
V. L. Popov ◽  
M. Popov
Keyword(s):  
Active Control ◽  
Active Control Of Friction ◽  
Transverse Oscillations
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