Modeling pressure variations generated by short train passing in open air

Miyachi, Tokuzo; Kikuchi, Katsuhiro; Tebbutt, J.A.

doi:10.1016/j.jsv.2020.115543

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…The fluid–solid interaction (FSI) method is first proposed by Zienkiewicz et al (2006) to solve the problem of fluid and solid interaction. It is widely applied in the impeller blade vibration analysis (Bazilevs et al, 2011), the gas pipeline vibration analysis (Mostafapour and Davoodi, 2015), and the high-rise building swing analysis (Zhang et al, 2015), among which FSI is most widely used in the rail transit field (Cui et al, 2014; Miyachi et al, 2020; Zeng et al, 2018). Abbasi et al (2018) numerically investigated FSI for flow around three equally/unequally spaced square cylinders using the lattice Boltzmann method.…”

Section: Introductionmentioning

confidence: 99%

High-speed elevator car horizontal vibration fluid–solid interaction modeling method

Qiu

Wang

et al. 2021

Journal of Vibration and Control

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High-speed elevator horizontal vibration seriously affects passenger comfort. To reach the smooth operation of the high-speed elevators, it is extremely important to study the horizontal vibration of the elevator car. There are two main factors that cause the horizontal vibration of the high-speed elevator car, namely, the guidance system excitations and the car aerodynamic characteristics running in the hoistway. Under the coupling action of these two factors, the horizontal vibration of the high-speed elevator car system is aggravated. To accurately obtain the horizontal vibration information of the high-speed elevator, we developed the high-speed elevator car horizontal vibration fluid–solid interaction model. It is decoupled by the proposed fluid–solid interaction decoupling solution. The influence of the high-speed elevator running speed, the guide rail profile deviation, and the rolling guide shoe dynamic parameters on the car horizontal vibration is analyzed. To verify the feasibility of the proposed method, the 5 m/s, 7 m/s, 8 m/s, and 10 m/s high-speed elevators are applied in a 288 m test tower. The simulation accuracy using the proposed method reaches the minimum of 0.93% in 5 m/s case of the peak-to-peak value, reaches the minimum of 3.11% in 10 m/s case of the A95 value, and reaches the minimum of 0.13% in 10 m/s case of the main frequency value. In general, the compared results of the peak-to peak vibration acceleration, the A95 value, and the main frequency are all closed in both 5 m/s, 7 m/s, 8 m/s, and 10 m/s cases.

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