Work

Experimental and Numerical Investigation of Vibration-Suppression Efficacy in Spring Pendulum Pounding-Tuned Mass Damper

Year: 2025

Type: article

Abstract: Originally proposed by the authors, the spring pendulum pounding-tuned mass damper (SPPTMD)—a novel nonlinear damping system comprising a spring pendulum (SP) and motion limiter that dissipates energy through spring resonance amplification and controlled mass-limiter impacts—was theoretically validated for structural vibration control. To experimentally verify its efficacy, a two-story, lightly damped steel frame was subjected to sinusoidal excitation and historical earthquake excitations under both uncontrolled and SPPTMD-controlled conditions. The results demonstrated (1) significant vibration attenuation through SPPTMD implementation and (2) enhanced control effectiveness in soft soil environments compared to stiff soil conditions. Additionally, a numerical model of the SPPTMD–structure system was developed, with computational results showing excellent correlation to experimental data, thereby confirming modeling accuracy.

Source: Applied Sciences

DOI: 10.3390/app15084297

Authors: Qi Wang, Lipeng Zhang, Hongnan Li, Xin Guo

Institutions: Dalian University of Technology, State Key Laboratory of Coastal and Offshore Engineering, Liaoning Provincial College of Communications, Shenyang Jianzhu University

Language: English

Topic: Vibration Control and Rheological Fluids

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: National Natural Science Foundation of China