Results 1 to 10 of about 61,802 (259)

Performance of Optical Structural Vibration Monitoring Systems in Experimental Modal Analysis. [PDF]

Sensors (Basel), 2021
Kalybek M, Bocian M, Nikitas N.
europepmc   +1 more source

Vibration Energy Signal Information for Measure Dynamic Preferences of Ceramic Building Materials Using Experimental Modal Analysis Methodology. [PDF]

Materials (Basel), 2022
Żółtowski M, Rutkowska G, Liss M, Kałaczyński T, Krejsa M.   +4 more
europepmc   +1 more source

Spatially Resolved Experimental Modal Analysis on High-Speed Composite Rotors Using a Non-Contact, Non-Rotating Sensor. [PDF]

Sensors (Basel), 2021
Lich J, Wollmann T, Filippatos A, Gude M, Czarske J, Kuschmierz R.   +5 more
europepmc   +1 more source

Theoretical-Experimental Modal Analysis of a Flexible Rotor Based on the Jeffcott Model

Ingeniería
Context: Rotating equipment that operates at high speeds or handles significant loads is designed based on the concept of flexible shafts. This is the case with turbines, compressors, and turbopumps, among others.
Javier Ruíz-Rodríguez, Brian Farid Morales-Hernández, Heller Guillermo Sánchez-Acevedo   +2 more
doaj   +1 more source

Analysis and Research on the Modal Experiment of Series-Parallel Hybrid Grinding and Polishing Machine

MATEC Web of Conferences, 2018
In order to improve the dynamic performance of the grinding machine and improve the machining precision of the machine tool, a modal experiment is conducted on the complete machine and main sub-structures of the series-parallel hybrid grinding and ...
Qu Xing-tian, Zhang Jia-he, Wang Xin
doaj   +1 more source

Estimation Modal Parameter Variation with Respect to Internal Energy Variation Based on the Iwan Model

Applied Sciences, 2019
Typical factors that cause nonlinear behavior in structures are geometric nonlinearity, force and displacement boundary condition nonlinearities, and material nonlinearity.
Jongsuh Lee
doaj   +1 more source

Measurement of Join Patch Properties and Their Integration into Finite-Element Calculations of Assembled Structures

Shock and Vibration, 2012
The vibration and damping characteristics of an assembled structure made of steel are investigated by an experimental modal analysis and compared with the results of a finite element modal analysis.
A. Schmidt, S. Bograd, L. Gaul
doaj   +1 more source

Structural Modal Time Domain Identification Method Based on the Bayesian Uncertain Quantification

Applied Sciences
Based on the Bayesian framework, a time domain method is proposed for the uncertain quantification of structural modal identification. First, a theoretical prediction model is constructed from the state space model in modal space and then transformed ...
Yaozong Pan, Yan Zhao
doaj   +1 more source

Experimental Modal Analysis of Scaled Car-body Sidewall for High-speed Vehicles

机车电传动, 2017
According to the theory of experimental modal analysis (EMA), SIMO analysis method, multi-reference point modal test, experimental modal test and modal parameters identification of the scaled 1:8 car-body’s sidewall were conducted.
LI Xujuan, MIAO Bingrong, SHI Yanmin, WANG Mingyue, YANG Zhongkun   +4 more
doaj  

Numerical and experimental investigation of vibration and damping performance of additively manufactured mechanical metamaterials

Results in Engineering
Mechanical vibrations present significant challenges to advanced technologies—such as robotics, automobiles, aerospace, and additive manufacturing, where even minor disturbances can compromise structural integrity and performance.
Fayyaz, Salem Bashmal, Aamer Nazir, Suhail Hyder Vattathurvalappil, Sikandar Khan   +4 more
doaj   +1 more source