巨大没有
发表于 2025-3-25 03:29:31
The Science Art and Writing (SAW) Initiativeically in the form of a structural finite-element model. The disturbance information includes disturbance location and disturbance spectral contents. The structure performance is commonly evaluated through the displacements or accelerations at certain structural locations.
arcane
发表于 2025-3-25 09:51:55
Textbook 1998uctural dynamics and control methods. This book addresses the structural dynamics and control problems encountered by mechanical, civil, and control engineers. Many problems presented in this book originated in recent applications in the aerospace industry, and have been solved using the approach pr
eardrum
发表于 2025-3-25 12:39:01
Introduction? For structural or mechanical engineers its special properties include periodic vibrations with dominating few frequencies, resonances, and natural modes of vibrations. The term “flexible structure” is commonly used within the control engineering community to refer to a linear system with oscillato
Juvenile
发表于 2025-3-25 16:12:49
Modelsresented in the form of second-order differential equations or in the form of first-order differential equations as a state-space representation. In the first case, the system dynamics is typically represented by the system degrees of freedom, and in the second case by the system states. Preferred b
有常识
发表于 2025-3-25 22:32:02
Controllability and Observability by structural engineers. A structure is controllable if the installed actuators excite all its structural modes. It is observable if the installed sensors detect the motions of all the modes. This information, although essential in many applications, is too limited: it answers the question of excit
无情
发表于 2025-3-26 00:57:46
Normsures. Three system norms: H., H., and Hankel are analyzed in this book. It is shown that for flexible structures the H. norm has an additive property: it is a rootmean-square (rms) sum of the norms of individual modes. The H. and Hankel norms are also determined from the corresponding modal norms, b
Override
发表于 2025-3-26 04:35:55
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有常识
发表于 2025-3-26 11:31:46
Assignmentify the sensor and/or actuator locations to obtain the required (or assigned) values of the controllability and observability grammians. In particular, one can find the locations such that all Hankel singular values are identical. This is a case of a uniform controllability and observability assignm
esthetician
发表于 2025-3-26 14:52:29
Actuator and Sensor Placementinformation on the structure itself, on disturbances acting on the structure, and on the expected structural performance. The first information is typically in the form of a structural finite-element model. The disturbance information includes disturbance location and disturbance spectral contents.
ASSAY
发表于 2025-3-26 17:38:54
Dissipative Controllers superior performance, since the performance enhancement in this case is tied to the reduction of the stability margin. If some conditions are satisfied, one obtains a special type of proportional controllers — dissipative ones. As stated by Joshi “the stability of dissipative controller