Results 21 to 30 of about 308,735 (293)

Longitudinal torsional vibrations of the chain drive system of mine scraper conveyor. [PDF]

open access: yesSci Rep, 2023
To deeply analyse the dynamic characteristics of the scraper conveyor during operation, the mechanical characteristics of the coupled longitudinal and torsional vibrational modes under excitation by cargo loading are studied.
Lu J, Yang R, Mao J, Xie C.
europepmc   +2 more sources

Design and Simulation of Bias Fork Chain Drive in Vertical Circular Stereo Garage

open access: yesJixie chuandong, 2018
Taking the stereo garage as the research object,the advantages and disadvantages of the stereo garage is analyzed. The vertical circular stereo garage is selected as example,the structural improvement of lift system is carried out,the issue of the chain ...
Wang Qi, Yan Zhengliang, Chen Yuanhua
doaj   +2 more sources

Active Control of Drive Chain Torsional Vibration for DFIG-Based Wind Turbine

open access: yesEnergies, 2019
Due to the fast electric control of the doubly-fed induction generator (DFIG) when experiencing power grid disturbance or turbulent wind, the flexible drive chain of the wind turbine (WT) generates long-term torsional vibration, which shortens the ...
Zhongyi Li   +4 more
doaj   +2 more sources

Efficiency-based methodology for the selection of electric motors for mini-tractor propulsion [PDF]

open access: yesFME Transactions
This article deals with the research and analysis of electric motors and their matched transmission systems within the context of a versatile electric mini-tractor designed for tasks such as street cleaning, urban park maintenance, and transportation of ...
Alibek Ibraim   +4 more
doaj   +1 more source

Daisy-chain gene drives: The role of low cut-rate, resistance mutations, and maternal deposition.

open access: yesPLoS Genetics, 2022
The introgression of genetic traits through gene drive may serve as a powerful and widely applicable method of biological control. However, for many applications, a self-perpetuating gene drive that can spread beyond the specific target population may be
Sebald A N Verkuijl   +3 more
doaj   +1 more source

Experiment and Analysis of Film-Soil Separation Motion Characteristics of a Chain Drive Residual Film Recovery Mechanism for the Tillage Layer

open access: yesApplied Sciences, 2022
The working principle and key components of a chain drive residual film recovery machine were studied. A kinematic analysis of the chain drive soil separation mechanism was completed by applying ADAMS software to obtain the trajectory, displacement ...
Zenglu Shi   +4 more
doaj   +1 more source

POWER-EFFICIENCY ANALYSIS OF OIL WELL SYSTEMS WITH SUCKER ROD PUMPING UNITS

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2015
The purpose of this paper is to analyze the power efficiency of oil well systems with sucker rod pumping units. For this study a chain-drive of HRC 80-6-02 type and a similar performance drive HRC 80-6-02 balancer pumping unit were selected. Based on the
A. M. Sagdatullin
doaj   +1 more source

Analysis of Possible Concept Solutions of Chain Drives [PDF]

open access: yesMATEC Web of Conferences, 2019
Possible concept solutions of chain drives are analysed in this paper in order to point out the benefits of chain drive application and, in particular, the possibility of application of multi-level chain drive.
Rackov Milan   +6 more
doaj   +1 more source

GEOMETRY MODELING OF GEAR AND CHAIN DRIVE WITH EVOLUTE PROFILE AND RESEARCH OF ITS CONTACT STRESS [PDF]

open access: yesFiabilitate şi Durabilitate, 2017
Evolute gearing is realized in a family of teeth profiles for gears and chain drives with convex-concave contact. The main criterion of loading capacity for gear is contact strength, for chain drive – tooth wear.
Roman PROTASOV   +4 more
doaj  

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