New effectual configuration of bistable nonlinear energy sink.

ABSTRACT: The study presents a new configuration of nonlinear energy sinks (NESs) which is adaptable to function as either stable or bistable NES. The proposed NES is based on the spring-loaded inverted pendulum (SLIP) in which a torsional stiffness element couples the SLIP to the linear oscillator (LO). The bistable configuration provides a critically stable position when the SLIP is vertically aligned with respect to the LO motion. At this critical stability position, the SLIP NES incorporates pre-stored potential energy which generates the bistability characteristics resembling that of a stiffness-based bistable NES. The equations of motion of the coupled LO with the SLIP NES are derived based on the Euler-Lagrange method in non-dimensional form. The parameters of the considered SLIP NESs are opt

SUBMITTER: Nasar RA 

PROVIDER: S-EPMC11549386 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature