Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Proposition of a structural health monitoring model for a concept of an innovative variable mass pendular tuned mass damper

Radomski Amadeusz, Sierociński Damian Jacek, Chiliński Bogumił Daniel

Diagnostyka

2024

Vol. 25, No. 2

art. no. 2024201

The article focuses on the proposal of a model of a skyscraper equipped with a semi-active pendular vibration eliminator utilizing the phenomenon of fluid transfer, which could be used in monitoring the condition of slender structures. The proposed model consists of two main elements: an upper member, representing the dynamic mass of a skyscraper in the form of a trolley, and a lower member - a pendulum attached to the trolley. To consider the fluid transfer, a variable mass factor represented by an inverse tangent function was included in the equation of motion. Simulation studies in a dimensionless time domain were performed to investigate the influence of mass distribution on changes in the system’s response. Three dynamic states of the system were considered, during which the system’s total mass remained constant. Diagnostic parameters enabling the detection of changes in the mass of the eliminator and stiffness of a damped structure have been proposed.

Concept of an adaptive-tuned particles impact damper

Żurawski Mateusz, Zalewski Robert, Chiliński Bogumił Daniel

Journal of Theoretical and Applied Mechanics

2020

Vol. 58 nr 3

811--816

The most popular devices for attenuation of mechanical vibrations are dampers or shock absorbers. Two main energy dissipation strategies can be generally distinguished: passive and active (semi-active). Passive vibration isolation methods are the most commonly used, mainly because of their simplicity and low maintenance costs. Among passive vibration attenuation techniques, also Particle Impact Dampers (PID) are involved. Classical PID solutions have some certain limitations. This paper aims at presenting the new concept of an adaptive tuned PID damper that can pretend to be placed among semi-active energy dissipation methods.