Active control of surface forces via nanopore structures
نویسندگان
چکیده
منابع مشابه
Active Control of Structures
In recent years a large large amount of work on the active control of the flexible structures has been done. The concrete engineering problems that motivate this study come from very different fields: aerospace, structures, meteorology, nanotechnology, etc. An overview can be found in the book of Fuller, Elliot and Nelson [5]. The problem of active vibration control (AVC) can be set in the fram...
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In this paper the application of control theory to structural engineering has been presented from a structural engineering perspective. The objective of this paper is to summarize key steps that are required to design an active control system for a structure. Total acceleration feedback with H2/LQG controller is used in this paper. The structural control device is made of tendon/pulley system. ...
متن کاملSolutions : Active Control of Structures
0.1 Challenge 1 If we consider that G(x, t) and W (x, t) are harmonic functions in time, then there exist functions g(x) and w(x) such that G(x, t) = g(x) cos(ωt) and W (x, t) = w(x) cos(ωt). Reeplacing these two expressions in the problem (1), we have that −ω2w(x) cos(ωt)− c2w′′(x) cos(ωt) = g(x) cos(ωt), which implies that −ω2w(x) − c2w′′(x) = g(x). On the other hand, the function W (x, t) sa...
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Combining direct surface force measurements with in situ regulation of surface potential provides an exceptional opportunity for investigating and manipulating interfacial phenomena. Recently, we studied the interaction between gold and mica surfaces in water with no added salt, while controlling the metal potential, and found that the surface charge at the metal may vary, and possibly even cha...
متن کاملSemi-active Control of Building Structures using Variable Stiffness Device and Fuzzy Logic
Semi-active control devices, also called “Intelligent” control devices, constitute the positive aspects of both the passive and active control devices. A semi-active control strategy is similar to the active control strategy, but this control device has been shown to be more energy-efficient than active devices. A particular type of semi-active control device, the Variable Stiffness Device (VSD...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2013
ISSN: 2166-532X
DOI: 10.1063/1.4821633