Results 11 to 20 of about 19,002 (217)
Physics-Informed Neural Network-Based Elevator Degradation Diagnosis and Early Warning [PDF]
SensorsWith the continuous growth of urban building density and elevator deployment, the reliability, maintenance, and degradation risk warning of elevator systems have attracted increasing attention. Conventional monitoring methods based on fixed thresholds or
Ren Li +6 more
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Model and Optimization of the Tether for a Segmented Space Elevator
Aerospace, 2022 In order to improve the shortcomings of the traditional constant section and gradual section space elevator system, combined with the advantages of constant section and gradual section space elevator system, a model of segmented space elevator system is ...
Shihao Luo +4 more
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Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism [PDF]
Engineering and Technology Journal, 2020 An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype ...
Jamal Mohammed +2 more
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Nonlinear bending and vibration analyses of FG nanobeams considering thermal effects
Materials Research Express, 2020 Nonlinear bending and nonlinear free vibration analysis are presented for FG nanobeams based on physical neutral surface concept and high-order shear deformation beam theory with a von Kármán-type equations and including thermal effects.
Wubin Shan +3 more
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Heliyon, 2023 Residents have to use elevators to leave and enter their high-rise apartments frequently. An elevator car can easily spread respiratory infectious diseases, as it has a confined and small space.
Zuiyuan Guo +5 more
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Experimental study on damping characteristics of elevator traction system
Advances in Mechanical Engineering, 2022 An elevator traction system is simplified as a damped vibration system. In order to study the damping characteristics of an elevator traction system, this paper tests the vibration characteristics of a car frame on an in-service elevator with a traction ...
Peng Xu +6 more
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Vibration analysis of elevator traveling cable by ANCF considering internal damping
Mechanical Engineering JournalTraveling cables are important components for elevators that transmit electricity and control command to elevator car. In recent years, as buildings have become taller, traveling cables have also become longer.
Takayoshi KAMADA +5 more
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Dynamics and Failure Analysis of the Process of Elevator Safety Gears Stopping the Car
Results in EngineeringThe safety gears serve as an extremely important protective measure when the car is descending at an overspeed. However, in existing theoretical research, it has not been considered that after stopping the car through safety gears, the continued movement
Weimin Zhang +4 more
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Nihon Kikai Gakkai ronbunshu, 2023 In the installation process of an elevator, work performs to correct the bending of the rail in order to suppress the lateral vibration of the car due to the irregularity of the guide rail.
Yutaka MARUYAMA +3 more
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Nihon Kikai Gakkai ronbunshuDuring an earthquake, elevator operation is restricted by controlled operation because the elevator ropes resonate with the building sway. In this paper, based on the assumption that the elevator can operate even in the event of an earthquake if the ...
Ryoji NAKANISHI +4 more
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