High horizontal vibration
Web26 de abr. de 2024 · The vibration reduction method proposed in this paper is superior to all other mentioned methods in terms of the peak-to-peak value and the A95 value of the … WebHigh-speed elevator horizontal vibration (HsEHV) is a problem that seriously affects ride comfort. To solve this problem, a design parameter optimization method for HsEHV …
High horizontal vibration
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Web12 de abr. de 2024 · Abstract: To effectively suppress the horizontal vibration of a high-speed elevator car caused by uncertainties such as the irregularity of guide rails and the piston wind in the hoistway, this paper proposes a new variable universe fuzzy control method for semi-active guide shoes with magnetorheological (MR) dampers based on … Web12 de mar. de 2024 · 15 common types of vibration problems and their characteristic spectra including: imbalance misalignment eccentric rotor bent shaft mechanical looseness …
Web10 de fev. de 2024 · Horizontal vibration of a high-speed elevator can seriously influence the safety, stability, and ride comfort of the elevator during the operation. The … Web24 de fev. de 2011 · The horizontal vibrations are caused by the friction between the compaction probe and the soil, and they generate horizontal stress pulses directed away from the probe during the downward movement of the probe. The horizontal stresses …
Web10 de fev. de 2024 · Horizontal vibration of a high-speed elevator can seriously influence the safety, stability, and ride comfort of the elevator during the operation. The construction of an accurate and robust dynamic model for horizontal vibration is the key to vibration control and suppression. Web8 de dez. de 2024 · The horizontal vibration of an elevator system includes its lateral vibration ( y direction) and front and back vibration ( x direction). The lateral vibration is similar to the front and rear vibration dynamic models, and the modal frequencies are similar, so they are often studied separately.
Web27 de set. de 2024 · In view of this, considering the time-varying characteristics of the contact stiffness, a 17 degrees-of-freedom (DOF) dynamic model of the horizontal vibration of the super high-speed elevator is established in this paper; the Gaussian white noise is employed to simulate the excitations of guide, and the Savitzky–Golay filter is …
Web7 de fev. de 2024 · Typically, a 90-degree phase difference will exist between horizontal and vertical readings at each bearing with a pure imbalance problem. Misalignment Misalignment occurs when the shaft centrelines of two directly mating components meet at angles and/or are offset from one another. cheap skullcandy 50 50Web8 de dez. de 2024 · The horizontal vibration of an elevator system includes its lateral vibration ( y direction) and front and back vibration ( x direction). The lateral vibration … cheap ski wear for menWeb1 de jun. de 2012 · The vibration level can be seen to increase (above the .30 in/sec Hydraulic Institute allowable limit) as the pump is pushed into low (suction recirculation) … cheap skullcandy headphones heshWeb2 de jun. de 2024 · There are two main factors that cause the horizontal vibration of the high-speed elevator car, namely, the guidance system excitations and the car … cheap ski vacations new mexicoWeb13 de set. de 2024 · Vegetables (e.g., cucumbers, lettuce, and Chinese cabbages) exhibited a similar peak in the high-frequency bands (2 240-12 800 Hz) for horizontal vibrations, although the vibration intensity varied. cheap ski vacations from houstonWeb1 de jun. de 2012 · A margin of safety should be provided between the pump/vane pass speed/frequencies, and major structural (and/or pipe hydraulic) natural frequencies. Typical acceptable margins are 15-25%. The amplitude of the vibration response can be amplified 2.5 times or higher at or near a component natural (critical) resonant frequency. cyber security lubbockWeb29 de nov. de 2024 · I generally feel this can be due to 2 reasons. Some dust or deposition gets accumulated on fan impeller increasing the vibration & later it falls … cheap skullcandy wireless headphones