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Noise Sensitivity of Mode Shape and Mode Shape Difference to Damage Detection
Wavelet transform (WT) has become a reliable tool in detecting damage in structures. Owing to its reliability, various researchers have applied WT to...
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Proposing a novel structural damage indicator for beams: integrating single-node mode shape parameters and additional mass methods
In order to solve the problem of structural damage identification, this paper proposes a damage identification method, called ASS, based on a...
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Experimental Investigation of Sensor Location Optimization for Mode Shape Extraction
As monitoring becomes more crucial for large structures, striking the right balance between the number of sensors and capturing key structural traits...
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Mode Shape Identification Using Drive-by Monitoring: A Comparative Study
The structural system identification technique referred to as drive-by health monitoring has recently become popular for the dynamic investigation of...
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Adaptive Dual-Layer Sliding Mode Control for Ball on Plate System Driven by Shape Memory Alloy Wire
This paper describes a dual-layer adaptive sliding mode control for a ball-on-plate system propelled by shape memory alloy (SMA) wire actuators....
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Frequency Change and Mode Shape Transformation in Free Vibration Analysis of Three-Phase Composite Thin Plate Under Different Boundary Conditions
BackgroundThe plate structure is one of the typical components of the mechanical system and its vibration research has attracted full attention....
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Damage Detection in Beam-Like Structures Using Mode Shape Curvature Change-Based Method
In this paper, the mode shape curvature change-based method is improved to detect the damages in beam-like structures. A steel beam, whose damages...
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Mode Shape Identification Based on Instantaneous Frequency of Moving Vehicle-Bridge System
A mode shape identification (MSI) approach is developed based on the instantaneous frequency (IF) of moving vehicle-bridge system (VBS) in this...
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Integral sliding mode control (ISMC) with an extended state observer (ESO) for an arc-shaped shape memory alloy actuator
This research proposes a dynamic extended state observer (ESO) with integral sliding mode control (ISMC) for the novel SMA actuator considering...
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Online analysis method to correlate the mode shape for forced vibration in milling thin-walled workpieces
Forced vibration is a type of stable vibration different from chatter, which reduces the machining quality of a formed surface. The forced vibration...
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Dynamic high-gain observer approach with sliding mode control for an arc-shaped shape memory alloy compliant actuator
In this research, we present a dynamic high gain observer (HGO) combined with a sliding mode controller (SMC) for a novel shape memory alloy (SMA)...
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Vision-Aided Damage Detection Method with DIFun Model for Beam-Like Structures: A Novel Information Fusion of DOG Multi-Scale Space of Mode Shape
OverviewStructural Health Monitoring (SHM) plays a crucial role in maintaining the integrity and safety of aging infrastructures like bridges and...
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Damage Detection in Laminated Composite Beams Reinforced with Nano-particles Using Covariance of Vibration Mode Shape and Wavelet Transform
IntroductionDamage detection based on mode shapes is popular since obtaining experimental mode shapes of the damaged structure is possible. Usually,...
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Numerical study of the natural frequency and mode shape of prototype Francis turbine runner
The prediction of the dynamic behavior of the structure is a key to ensure the safe and stable operation of the unit. In this paper, the acoustic...
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Damage detection in a cantilever beam using noisy mode shapes with an application of artificial neural network-based improved mode shape curvature technique
Experimentally and numerically obtained displacement mode shapes are utilized as input data to artificial neural networks (ANNs) and mode shape...
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Multi-mode Soft Composite Bending Actuators Based on Glass fiber Textiles Interwoven with Shape Memory Alloy Wires: Development and use in the Preparation of Soft Grippers
We develop multi-mode soft composite bending actuators based on glass fiber textiles interwoven with shape memory alloy (SMA) wires and a soft matrix...
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Multiple Damage Identification in a Beam Using Artificial Neural Network-Based Modified Mode Shape Curvature
In the present work, the existence of multiple damage locations is identified successfully by using the modified mode shape curvature technique in a...
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Change in Vortex Breakdown Mode and It’s Influence on Flame Shape of a Co/counter Concentric Swirling Streams
The present study experimentally investigates the flow field of co/counter-swirling stream under non-reacting and reacting conditions by varying the...
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T-tail flutter simulations with regard to quadratic mode shape components
It is known that the dynamic aeroelastic stability of T-tails is dependent on the steady aerodynamic forces at aircraft trim condition. Accounting...
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High Resolution Mode Shapes Identification of Bridge Using Limited Sensors
In this paper, a new method is proposed for high resolution mode shapes identification of bridge using a limited number of sensors based on proper...