Investigation on employment of time and frequency domain data for predicting nonlinear seismic responses of structures

Park, Hyo Seon; Yoo, Sang Hoon; Yun, Da Yo; Oh, Byung Kwan

doi:10.1016/j.istruc.2024.105996

Structures

2024

DOI: 10.1016/j.istruc.2024.105996

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Investigation on employment of time and frequency domain data for predicting nonlinear seismic responses of structures

Hyo Seon Park,

Sang Hoon Yoo,

Da Yo Yun

et al.

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2024

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Cited by 2 publications

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A novel iterative algorithm for nonlinear inelastic dynamic analysis of truss structures; MCB-Spline+Sp time integration method

Rostami,

Shojaee,

Heydari

2024

Structures

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A novel iterative algorithm for nonlinear inelastic dynamic analysis of truss structures; MCB-Spline+Sp time integration method

Rostami,

Shojaee,

Heydari

2024

Structures

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Noise‐robust structural response estimation method using short‐time Fourier transform and long short‐term memory

Yun,

Park

2024

Computer aided Civil Eng

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Structural response estimation based on deep learning can suffer from reduced estimation performance owing to discrepancies between the training and test data as the noise level in the test data increases. This study proposes a short‐time Fourier transform‐based long short‐term memory (STFT‐LSTM) model to improve estimation performance in the presence of noise and ensure estimation robustness. This model enables robust estimations in the presence of noise by positioning an STFT layer before feeding the data into the LSTM layer. The output transformed into the time‐frequency domain by the STFT layer is learned by the LSTM model. The robustness of the proposed model was validated using a numerical model with three degrees of freedom at various signal‐to‐noise ratio levels, and its robustness against impulse and periodic noise was verified. Experimental validation assessed the estimation robustness under impact load and verified the robustness against environmental noise in the acquired acceleration response.

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Investigation on employment of time and frequency domain data for predicting nonlinear seismic responses of structures

Cited by 2 publications

References 34 publications

A novel iterative algorithm for nonlinear inelastic dynamic analysis of truss structures; MCB-Spline+Sp time integration method

A novel iterative algorithm for nonlinear inelastic dynamic analysis of truss structures; MCB-Spline+Sp time integration method

Noise‐robust structural response estimation method using short‐time Fourier transform and long short‐term memory

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