Results 251 to 260 of about 12,106 (297)

Toward the Total Synthesis of Haliclonin A: Construction of a Tricyclic Substructure

Chemistry - A European Journal, 2013
Three keys to success: A concise method for the construction of a tricyclic substructure (2) of haliclonin A (1) in racemic form is described (see figure).
Lian-Dong Guo, Long-Hui Gao, Pei-Qiang Huang   +2 more
exaly   +1 more source

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Substructuring decomposition and controller synthesis

31st Structures, Structural Dynamics and Materials Conference, 1990
A decentralized design procedure is proposed for the control design for flexible structures. The structure to be controlled is decomposed into several substructures by using a natural decomposition called substructuring decomposition. For each substructure, a subcontroller is designed by using the linear quadratic optimal control theory.
TZU-JENG SU, ROY CRAIG, JR.
openaire   +1 more source

A Theory of Substructure Modal Synthesis

Journal of Applied Mechanics, 1982
A theory is presented for representing the displacements of a substructure finite-element mathematical model with a reduced number of degrees of freedom. A first or second-order approximation is used for the substructure’s modal coordinates associated with significantly larger or smaller eigenvalues than the system eigenvalues of excitation.
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Dynamic Synthesis of Substructures∗

Mechanics of Structures and Machines, 1990
ABSTRACT A new approach is presented to synthesize dynamic properties of a system that is composed of multiple degree of freedom subsystems attached to a multiple degree of freedom primary system at several points. Natural frequencies and mode shapes of the combined system are obtained in terms of modal properties of the primary system, subsystems, and
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Successive Synthesis of Substructure Modes

Journal of Applied Mechanics, 1991
A mode synthesis approach is presented to calculate the eigenproperties of a structure from the eigenproperties of its substructures. The approach consists of synthesizing the substructures sequentially, one degree-of-freedom at a time. At each coupling stage, the eigenvalue is obtained as the solution of a characteristic equation, defined in closed ...
Luis E. Suarez, Mahendra P. Singh
openaire   +1 more source

Model Establishment of a Deployable Missile Control Fin Using Substructure Synthesis Method

Transactions of the Korean Society for Noise and Vibration Engineering, 2005
A deployable missile control fin has some structural nonlinearities because of the worn or loose hinges and the manufacturing tolerance. The structural nonlinearity cannot be eliminated completely, and exerts significant effects on the static and dynamic
김대관, 이인, 한재흥, 배재성
exaly   +1 more source

A Method for Substructural Sensitivity Synthesis

Journal of Vibration and Acoustics, 1991
A new method, termed the substructural sensitivity synthesis method, which utilizes the computational merits of the component mode synthesis technique was proposed for the simple calculation of design sensitivities of the dynamic characteristics of substructurally combined structures.
Joo Ho Heo, K. F. Ehmann
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Damping Synthesis from Substructure Tests

AIAA Journal, 1974
A new method is proposed for synthesizing structural damping from substructure test data. It utilizes the off-diagonal coupling terms in the substructure modal damping matrices as well as the diagonal terms which correspond to uncoupled modal damping.
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A numerical-substructure-based approach for the synthesis and control of isolated structure dynamically substructured systems

2012 IEEE International Conference on Control Applications, 2012
Innovative numerical-substructure-based (NB) approach for the control and performance testing of a nonlinear base-isolated structure dynamically substructured system is presented. Dynamic substructuring enables a full-size, critical component of an entire system to be physically tested, whilst the remaining parts are simulated numerically.
Jia-Ying Tu, Hao-Ting Yang, Pei-Yang Lin, Jheng-Ying Jiang   +3 more
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The Combinatorial Synthesis of Bicyclic Privileged Structures or Privileged Substructures

Chemical Reviews, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Horton, DA, Bourne, GT, Smythe, ML
openaire   +5 more sources