QMU Analysis of Flexoelectric Timoshenko Beam by Evidence Theory DOI Creative Commons
Feng Zhang,

Jiajia Zhang,

Weiyue Wang

et al.

Advances in Mathematical Physics, Journal Year: 2023, Volume and Issue: 2023, P. 1 - 12

Published: Dec. 2, 2023

In recent years, with the rapid development of nanotechnology, a new type electromechanical coupling effect similar to piezoelectric effect, flexoelectric has gradually come into public’s view. The beam that is main structural unit signal output broad application prospects in next generation micro- and nanoelectromechanical systems. Therefore, investigation materials structures important scientific engineering significances for design devices. this paper, model Timoshenko established, deflection, rotation angle, dynamic electrical forced vibration are taken as system response, density ρ , shear correction factor κ frequency ratio λ selected key performance parameters system. combination available data engineers’ experience suggests there random cognitive uncertainties parameters. probability distribution response expressed by likelihood function belief through quantification margins (QMUs) analysis methodology under framework evidence theory, reliability or evaluation measured calculated confidence factors. These results provide theoretical basis accurate components guidance excellent performance.

Language: Английский

Dynamic Test of Negative Stiffness Damped Outrigger With Damping Amplification DOI Creative Commons
Meng Wang,

Yuji Koetaka,

Fei‐Fei Sun

et al.

Earthquake Engineering & Structural Dynamics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

ABSTRACT This paper proposed a novel negative stiffness damped outrigger with damping amplification (NSDO‐DA) through smart combination of an L‐shape lever, precompressed disc spring brace (DSB), and viscous damper. A theoretical model the NSDO‐DA considering nonlinear adaptive stiffness, dampers, frictions were established. Cyclic tests pairs DSB presented to verify feasibility using as precompression component NSDO‐DA. Subsequently, large‐scale dynamic five different systems conducted involving (i) conventional (CDO), (ii) amplified (ADO), (iii) purely mechanism, (iv) (NSDO), (v) Then, discussions on test results validations provided. The major contributions this are proposal experimental validation its two special features: producing force in parallel direction rather than perpendicular direction, making physical configuration more concise condensed for application; sharing mechanism lever both damper leading additional Moreover, behavior frequency‐independent feature successfully validated by tests.

Language: Английский

Citations

6
Damping dissipation analysis of damped outrigger tall buildings with inerter and negative stiffness considering soil-structure-interaction DOI
Meng Wang, Chao Liu,

Zhao Mi

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 88, P. 109225 - 109225

Published: April 5, 2024

Language: Английский

Citations

11
Bowstring-type inerter negative stiffness damper for vibration control of slender towers DOI
Ning Su, Jing Bian, Zhaoqing Chen

et al.

Engineering Structures, Journal Year: 2024, Volume and Issue: 308, P. 118037 - 118037

Published: April 16, 2024

Language: Английский

Citations

9
A state-of-the-art review on negative stiffness-based structural vibration control DOI
Huan Li, Kaiming Bi, Qiang Han

et al.

Engineering Structures, Journal Year: 2024, Volume and Issue: 323, P. 119247 - 119247

Published: Nov. 4, 2024

Language: Английский

Citations

7
Enhancing seismic resilience of nonlinear structures through optimally designed additional mass dampers DOI
Sudip Chowdhury, Arnab Banerjee, Sondipon Adhikari

et al.

International Journal of Non-Linear Mechanics, Journal Year: 2024, Volume and Issue: 162, P. 104717 - 104717

Published: March 27, 2024

Language: Английский

Citations

6
A force-restricted inerter damper for enhancing the resilience of seismically isolated structures DOI
Hongping Zhu, Zian Tang, Hao Luo

et al.

Engineering Structures, Journal Year: 2024, Volume and Issue: 313, P. 118268 - 118268

Published: May 28, 2024

Language: Английский

Citations

6
Soil-dependent stochastic optimization of base isolation system with negative stiffness inerter damper subjected to non-stationary seismic excitation DOI
Wenfu He, Yuxiang Zhou, Zhihao Wang

et al.

Structures, Journal Year: 2024, Volume and Issue: 67, P. 106955 - 106955

Published: July 23, 2024

Language: Английский

Citations

4
Comparative Analysis of Seismic–Induced Vibration Response Control in Multi–Inerter–Negative Stiffness Damped Outrigger Systems DOI Creative Commons
Sha Wei, Xinwei Wang,

Chunxin Huang

et al.

Buildings, Journal Year: 2025, Volume and Issue: 15(3), P. 441 - 441

Published: Jan. 30, 2025

The functionality and structural safety of super high–rise buildings are significantly challenged during seismic events. Although conventional damped outrigger (CDO) systems effectively mitigate seismic–induced vibrations, the energy dissipation capacity remains inherently limited. An inerter, with lightweight tuning capabilities dynamic negative stiffness characteristics, can enhance efficiency when integrated elements. To control performance this study proposes a multi–inerter–negative (INSDO) system focuses on different INSDO combinations to improve responses buildings. Taking dual–outrigger as an example, systematically compares performances five configurations. results demonstrate that all these configurations achieve notable damping performances, AND combination delivering optimal outcomes. This improvement is attributed synergistic interaction between inerter elements, which enhances damper’s hysteretic improves its capacity. configuration exceeds single by 71.37%.

Language: Английский

Citations

0
Shaking table test and seismic evaluation of cross-layer installed cable-bracing displacement amplification damped system DOI
Wenfu He, Yuxiang Zhou, Hao Xu

et al.

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112040 - 112040

Published: Feb. 1, 2025

Language: Английский

Citations

0
Negative-stiffness Inerter-based Outrigger-Cable-Lever-Dampers for towers DOI
Ning Su, Jing Bian, Zhihe Zhang

et al.

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110049 - 110049

Published: Feb. 1, 2025

Language: Английский

Citations

0