Results 11 to 20 of about 210,468 (297)

Pleural mesothelioma in a lift mechanic. [PDF]

open access: yesOccupational and Environmental Medicine, 1989
Etude d'un cas de mesotheliome pleural chez un homme employe pendant 30 ans a la maintenace d'un mecanisme d'ascenseur.
M, Huncharek, J, Muscat, J, Capotorto
openaire   +4 more sources

RELIABILITY ANALYSIS OF CRANE LIFTING MECHANISM [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2018
This paper focuses on a reliability analysis of various structural variants of a crane lifting mechanism. The reliability of such a mechanism is a basic requisite for the safe operation of the crane as a whole. The article analyses and jointly evaluates
Eva FALTINOVÁ   +3 more
doaj   +1 more source

Fracture Mechanism Analysis and Design Optimization of a Wheelset Lifting Mechanism Based on Experiments and Simulations

open access: yesMachines, 2022
In this study, material and dynamic stress experiments are combined with finite element (FE) simulations to reveal the fracture mechanism of the wheelset lifting apparatus, and a structural design optimization scheme based on the double-layer Kriging ...
Pengpeng Zhi   +6 more
doaj   +1 more source

Research on the dynamic characteristics of mast mechanism of rotary drilling rig [PDF]

open access: yes, 2011
In order to express the inherent complex dynamic characteristics of mast mechanism of rotary drilling rig synthetically and improve the smooth-going property of key parts and related hydraulic system in the lifting process.
Jiang, Tao   +3 more
core   +1 more source

Selection of optimal parameters boom lifting mechanism [PDF]

open access: yesE3S Web of Conferences
This document describes the calculation procedure for selecting the optimal parameters of the boom lifting mechanism in agricultural machinery. A boom lifting scheme was developed.
Kardash Artem A.   +4 more
doaj   +1 more source

Rapid-Erection Backstepping Tracking Control for Electrohydraulic Lifting Mechanisms of Launcher Systems

open access: yesApplied Sciences, 2022
Uncertainties and disturbances widely exist in electrohydraulic lifting mechanisms of launcher systems, which may worsen the rapid-erection tracking accuracy and even make the system unstable.
Lan Li   +3 more
doaj   +1 more source

Design of Double-drive Mechanism for Energy Saving Lifting Permanent Magnet [PDF]

open access: yesE3S Web of Conferences, 2019
On account of great power consume of lifting electromagnet, energy-saving lifting permanent magnet has got more attention. But in the exiting design of lifting magnet, most can only lift the workpiece placed horizontally, and can’t lift the workpiece ...
Ding Ning   +3 more
doaj   +1 more source

Safety Analysis, Design and Evaluation of 2-DOF Parallel Lifting Actuator on Stereo Parking Robot

open access: yesActuators, 2022
Stereo garage technology can effectively alleviate the problem of parking difficulties, but the safety problems of its actuators, via which the core of stereo parking function can be realized, seriously affect its promotion and further development.
Jingang Jiang   +4 more
doaj   +1 more source

Design and Experiment of a Lifting Tool for Hoisting Offshore Single-Pile Foundations

open access: yesMachines, 2021
Experiments with a cam-type clamp tool were carried out to overcome the difficulty of transporting and installing large-diameter mono-piles for offshore wind turbines. Using the experiments method to design a small wedge-type clamping mechanism and using
Bo Zhang   +3 more
doaj   +1 more source

Optimization and Analysis of Structure about Lifting Device of Logistics Sorting

open access: yesInternational Journal of Engineering and Management Sciences, 2019
The lifting device of a logistics sorting machine needs high frequency upward and downward reciprocating motion therefore the cutting fork arms and matching parts of the shaft are often worn out. In this paper the problem of the shear fork types applied
G Zhao, Zsolt Tiba, József Menyhárt
doaj   +1 more source

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