JEER
发表于 2025-3-28 18:38:37
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商谈
发表于 2025-3-28 22:24:49
Controllability and Observability,s the ability of the particular sensor configuration to supply all the information necessary to estimate all the states of the system. Classically, control theory offers controllability and observability tests which are based on the rank deficiency of the controllability and observability matrices:
压碎
发表于 2025-3-29 00:15:58
Stability,poles of the system in the left half plane. In chapter 9, we saw that the poles are the eigenvalues of the system matrix . when the system is written in state variable form. In chapter 10, we examined the Nyquist criterion for closed-loop stability of a SISO system; we concluded on the stability of
软膏
发表于 2025-3-29 05:09:29
Applications,lications; it is based on the work done at the Active Structures Laboratory of ULB before 2002. We believe that these early experiments have more than just an historical value. More applications will be considered in the next three chapters.
Console
发表于 2025-3-29 08:18:40
Tendon Control of Cable Structures, stadiums. The main span of current cable-stayed bridges (Fig.15.1) can reach more than . (e.g. Normandy bridge, near Le Havre, in France). These structures are very flexible, because the strength of high performance materials increases faster than their stiffness; as a result, they become more sens
青石板
发表于 2025-3-29 12:33:59
Active Control of Large Telescopes,ay that a point source at infinity forms a point image in the focal plane. However, because of diffraction, the image of a point object of a perfect (circular) telescope is not a point, but an area of finite size resulting from the spreading of the light energy, called .. Its size is directly relate
小步舞
发表于 2025-3-29 17:40:40
Semi-active Control,ire a large power source, which makes them costly (this is why there has been very few cars equipped with fully active suspensions) and vulnerable to power failure (this is why the civil engineering community is reluctant to use active control devices for earthquake protection). Semi-active devices
吹牛需要艺术
发表于 2025-3-29 21:40:44
Textbook 20113rd editionplaced on basic issues and simple control strategies that work..Now in its third edition, more chapters have been added, and comments and feedback from readers have been taken into account, while at the same time the unique premise of bridging the gap between structure and control has remained. Man
载货清单
发表于 2025-3-30 02:30:54
0925-0042 re and control.Proven to be successful as a course text.Solu.This text is an introduction to the dynamics of active structures and to the feedback control of lightly damped flexible structures; the emphasis is placed on basic issues and simple control strategies that work..Now in its third edition,
抗生素
发表于 2025-3-30 06:34:37
Active Damping with Collocated System, amplification at resonance is 1/2.. Note that for typical damping values encountered in practice, the values of . are very close to 0; this is why in most of the root locus plots shown in this chapter, different scales are used for the real and the imaginary axes, leading to a distortion of the angles.