Abstract. To absorb the vibration of car body high-speed train in multiple degrees freedom, a multi-degree freedom dynamic absorber (MDOF DVA) is proposed. Installed under body, natural frequency MDOF DVA from each DOF can be designed as for every single degree body. Hence, 12-DOF model including main system and an established, principle Multi-DOF absorption analyzed by combining design method ...

Structures undertaking dynamic load store cumulative damages on their structural members. Although these damages are generally estimated by measuring the acceleration, velocity and displacement at several observing points, the health monitoring system based on these measurements could be expensive. Therefore, approaches to the health monitoring system utilizing only the acceleration and decreas...

Abstract. Theoretical and experimental suppression of aeroelastic instabilities by means of broadband passive targeted energy transfers has been recently studied. A single-degree-offreedom (SDOF) nonlinear energy sink (NES) was coupled to a 2-DOF rigid wing modeled in the low-speed, subsonic regime with quasi-steady aerodynamic theory. The nonlinear attachment was designed and optimized to supp...

Assembling nonlinear dynamic models of structures is the goal of numerous research and development organizations. Such a predictive capability is required in the development of advanced, high-performance aircraft structures. Specifically, the ability to predict the response of complex structures to aero-acoustic loading has long been a United States Air Force goal. Sonic fatigue has plagued the...

This paper reports an analytical method to obtain approximate solution for optimal design of tuned inerter damper (TID) in MDOF damped civil structures. The is based on the equivalent linearization which converts mass-stiffness-damping system into a mass-equivalent stiffness and technique modal subsystem structure-TID SDOF system. procedures systems are introduced. Following this, proposed veri...

As the amplification of seismic force demands due to higher-mode effects on tall buildings is increasingly recognized as a design challenge, number high-performance systems have been proposed limit such through combined base shear-limiting and moment-limiting dual mechanisms. To better understand influence these overall behavior buildings, this paper presents study response Multi-Degree-of-Free...

This paper introduces a new approach to the design and control of a four-degree-of-freedom (4DOF) vehicle. This vehicle can travel sideways and it can negotiate tight turns easily. Existing 4DOF vehicles have been found difficult to control 2. The compliant linkage because of their overcon-strained nature. These difficulties As explained above, the key element in any workable MDOF translate int...