Results 11 to 20 of about 2,942,391 (249)

Characterizing the Dynamic Response of a Chassis Frame in a Heavy-Duty Dump Vehicle based on an Improved Stochastic System Identification [PDF]

open access: yes, 2015
This paper presents an online method for the assessment of the dynamic performance of the chassis frame in a heavy-duty dump truck based on a novel stochastic subspace identification (SSI) method. It introduces the use of an average correlation signal as
Chen, Zhi   +3 more
core   +4 more sources

Methods for modal parameters identification applied to CNC machine tool feed drives [PDF]

open access: yes
The paper presents a critical appraisal of existing methods for the identification of modal parameters (natural frequencies, damping ratios and mode shapes) for CNC machine tool feed drives.
Widiyarto, Muhammad Helmi Nur   +3 more
core   +4 more sources

Detecting Damage Evolution of Masonry Structures through Computer-Vision-Based Monitoring Methods

open access: yesBuildings, 2022
Detecting the onset of structural damage and its progressive evolution is crucial for the assessment and maintenance of the built environment. This paper describes the application of a computer-vision-based methodology for structural health monitoring to
Marialuigia Sangirardi   +3 more
doaj   +1 more source

Output-Only Time-Varying Modal Parameter Identification Method Based on the TARMAX Model for the Milling of a Thin-Walled Workpiece

open access: yesMicromachines, 2022
The process parameters chosen for high-performance machining in the milling of a thin-walled workpiece are determined by a stability prediction model, which needs accurate modal parameters of the machining system. However, the in-process modal parameters
Junjin Ma   +5 more
doaj   +1 more source

Failure Identification of Dump Truck Suspension Based on an Average Correlation Stochastic Subspace Identification Algorithm

open access: yesApplied Sciences, 2018
This paper proposes a fault identification method based on an improved stochastic subspace modal identification algorithm to achieve high-performance fault identification of dump truck suspension.
Bingwen Liu   +4 more
doaj   +1 more source

Application of Improved Combined Deterministic-Stochastic Subspace Algorithm in Bridge Modal Parameter Identification

open access: yesShock and Vibration, 2021
Modal parameter identification is considered to be one of the most important tasks in structural health monitoring because it provides a reliable reference for structural vibration control, damage severity, and operational state.
Peng Wen   +3 more
doaj   +1 more source

Modal Identification of Structures by Eliminating the Effect of the High Ocean Wind

open access: yesJournal of Marine Science and Engineering, 2022
Tropical cyclone is a rapidly rotating storm system with severe excitation such as high wind. This severe excitation may change the performance of structures, such as bridges, wharves and wind turbine structures.
Chun-Xu Qu   +5 more
doaj   +1 more source

A Data-Driven System Identification Method for Random Eigenvalue Problem Using Synchrosqueezed Energy and Phase Portrait Analysis

open access: yesSensors, 2023
The primary purpose of this research is to evaluate the uncertainty associated with modal parameter estimation for an inverse dynamic problem in which the structural parameters are random. The random nature of the structure’s parameters will be reflected
Swarup Mahato   +2 more
doaj   +1 more source

Identification of Mode Shapes Based on Ambient Signals and the IA-VMD Method

open access: yesApplied Sciences, 2021
The paper presents a multiaspect analysis of multivalues and the broadband nature of system oscillation. By analyzing the ambient signal caused by random small disturbances during the normal operation of interconnected power grids, many system operation ...
Fang Liu   +5 more
doaj   +1 more source

Comparison of Different Independent Component Analysis Algorithms for Output-Only Modal Analysis

open access: yesShock and Vibration, 2016
From the principle of independent component analysis (ICA) and the uncertainty of amplitude, order, and number of source signals, this paper expounds the root reasons for modal energy uncertainty, identified order uncertainty, and modal missing in output-
Jianying Wang   +3 more
doaj   +1 more source

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