Results 11 to 20 of about 8,765 (304)

Classification into modal clusters based on the modal contribution analysis of a subsystem

Nihon Kikai Gakkai ronbunshu, 2022
This paper addresses a method of classifying modal clusters to realize resonance control. Especially in this paper, this method is applied to the simultaneous placement of resonance frequencies of the multiple modes belonging to a specified modal cluster
Yuichi MATSUMURA, Shogo YOSHIKAWA, Hiroki HAYATA   +2 more
doaj   +1 more source

Causality in real-time dynamic substructure testing [PDF]

, 2009
Causality, in the bond graph sense, is shown to provide a conceptual framework for the design of real-time dynamic substructure testing experiments. In particular, known stability problems with split-inertia substructured systems are reinterpreted as ...
A. Gonzalez-Buelga, Blakeborough, Bonnet, Bursi, Bursi, Cellier, D.J. Wagg, Darby, Darby, Donea, Gawthrop, Gawthrop, Gawthrop, Gawthrop, Goodwin, Karnopp, Kyrychko, Lim, Marquis-Favre, Molina, Mukherjee, Nakashima, Neild, P.J. Gawthrop, S.A. Neild, Shing, Tondl, Wallace   +27 more
core   +2 more sources

SUBSTRUCTURES OF HOM

Journal of Algebra and Its Applications, 2010
Let M and N be two modules over a ring R. The concern is about the four substructures of hom R(M, N): the Jacobson radical J[M, N], the singular ideal Δ[M, N], the co-singular ideal ∇[M, N] and the total Tot [M, N]. One natural question is to characterize when the total is equal to one or more of the other structures.
Albu, Toma, Birkenmeier, Gary F., Erdoğgan, Ali, Tercan, Adnan   +3 more
openaire   +3 more sources

Resonance frequency control using the rank-one perturbation of the self-compliance matrix at interface degrees of freedom

Nihon Kikai Gakkai ronbunshu, 2019
A design method of a strongly coupled vibration system is required for improving noise and vibration performance of machinery. One of the authors proposed that analysis of the self-compliance matrix at interface degrees of freedom between two systems ...
Yuichi MATSUMURA, Masashi KOMADA, Masami MATSUBARA, Ichiro KIDO   +3 more
doaj   +1 more source

Stability Analysis and Verification of Real-Time Hybrid Simulation Using a Shake Table for Building Mass Damper Systems

Frontiers in Built Environment, 2020
The building mass damper (BMD) system, which incorporates the concept of a tuned mass damper into a mid-story isolation system, has been demonstrated as an effective system for suppressing structural vibration due to earthquakes. The BMD system separates
Pei-Ching Chen, Meng-Wei Dong, Po-Chang Chen, Narutoshi Nakata   +3 more
doaj   +1 more source

Test-Driven Development of a Substructuring Technique for the Analysis of Electromagnetic Finite Periodic Structures

Applied Sciences, 2021
In this paper, we follow the Test-Driven Development (TDD) paradigm in the development of an in-house code to allow for the finite element analysis of finite periodic type electromagnetic structures (e.g., antenna arrays, metamaterials, and several ...
Ignacio Martínez-Fernández, Adrian Amor-Martin, Luis E. Garcia-Castillo   +2 more
doaj   +1 more source

A recursive coupling-decoupling approach to improve experimental frequency based substructuring results [PDF]

, 2017
Substructure decoupling techniques allow identifying the dynamic behavior of a substructure starting from the dynamic behavior or the assembled system and a residual subsystem.
Coppotelli, G., Cumbo, R., D’Ambrogio, W., Fregolent, A., Manzato, S.   +4 more
core   +1 more source

A Coupled Field Multiphysics Modeling Approach to Investigate RF MEMS Switch Failure Modes under Various Operational Conditions

Sensors, 2009
In this paper, the reliability of capacitive shunt RF MEMS switches have been investigated using three dimensional (3D) coupled multiphysics finite element (FE) analysis.
Khaled Sadek, Jonathan Lueke, Walied Moussa   +2 more
doaj   +1 more source

Evaluation of Different Contact Assumptions in the Analysis of Friction-Induced Vibrations Using Dynamic Substructuring

Machines, 2022
Dynamic substructuring methods are initially developed for time-invariant systems to evaluate the dynamic behavior of a complex structure by coupling the component substructures.
Jacopo Brunetti, Walter D’Ambrogio, Annalisa Fregolent   +2 more
doaj   +1 more source

Optimization of mass properties of a rigid and small subsystem by comparison with a main system in conceptual design phase

Nihon Kikai Gakkai ronbunshu, 2020
This paper addresses to clarify the contribution of a mass property of a rigid and small subsystem to low order resonance frequencies of a whole structure.
Yuichi MATSUMURA, Atsuo MORI, Hiroto WATANABE   +2 more
doaj   +1 more source