This paper investigates the effect of displacement constraints on attenuation performance tuned mass dampers (TMDs) used in boring and turning applications. A simplified piecewise-smooth mechanical model is investigated through time domain simulations hybrid periodic orbit continuation, first under harmonic excitation, then regenerative cutting load. quasi-frequency response function derived fo...

Understanding the nonlinearity of pendulum tuned mass dampers (PTMDs) under large-amplitude vibration is important to enhance control performance. Here, nonlinear effects PTMDs on a single-degree-of-freedom (SDOF) system harmonic excitation are explored. The governing equations linear SDOF structure coupled with PTMD formulated. results obtained via method balance various amplitudes compared th...

Abstract A double tuned mass damper (DTMD) for suppressing oscillations of civil structures is proposed in this study. DTMD a combination an undamped TMD and smaller TMD. The impact parameters on the essential characteristics, as well vibration absorption capacity DTMD, investigated. Using genetic algorithms (GA), optimum are determined by minimizing peak dynamic magnification factor structural...

Semiactive control systems that offer the reliability of passive control systems as well as the versatility and adaptability of active control systems have received significant attention for structural vibration control (Jung et al., 2004). Magnetorheological (MR) fluid dampers have emerged as such a class of semiactive damping devices. By activating the MR fluid contained in the device through...

Tuned mass damper (TMD) have been studied and installed in structures extensively to protect the structures against lateral loads. Multiple tuned mass dampers (MTMDs) which include a number of TMDs with different parameters have been proposed for improving the performance of single TMDs. When the structural system is considered as multiple degrees of freedom (MDOF) and implemented with MTMDs, t...