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Influence of the type of reciprocating motion on the cyclic fatigue resistance of reciprocating files in a dynamic model [PDF]

open access: yesBMC Oral Health, 2021
Background The aim of this study was to compare the influence of two novel reciprocating movements on the cyclic fatigue resistance of endodontic reciprocating files. Methods 30 Procodile® (Komet Medical, Lemgo, Germany) files were selected in this study
Álvaro Zubizarreta-Macho   +5 more
doaj   +2 more sources

Construction method for three-dimensional dynamic configuration of reciprocating sucker rod string in actual wellbore [PDF]

open access: yesScientific Reports
The sucker rod string—serving as the core component of rod-pumped oil production systems—exhibits an ultra-slender geometric configuration. Under downhole reciprocating motion, it is prone to complex three-dimensional spatial deformation and may come ...
Ruidong Zhao   +6 more
doaj   +2 more sources

“Dentinal Microcracks After Root Canal Preparation” A Comparative Evaluation with Hand, Rotary and Reciprocating Instrumentation [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2014
Introduction: The purpose of this study was to compare the incidence of dentinal micro cracks after instrumentation with various types of NiTi files in rotary and reciprocating motion.
N. Tulasi Priya   +7 more
doaj   +1 more source

New Designs of Magnetic Fluid Seals for Reciprocating Motion

open access: yesPolish Maritime Research, 2022
The operating conditions of magnetic fluid seals during reciprocating motion are so different from those observed in rotating motion that the use of their conventional structures for reciprocating motion seals yields no good results.
Matuszewski Leszek, Bela Piotr
doaj   +1 more source

Simulation model “free-piston engine – electromechatronic converter on the basis of an electrical generator reciprocating”

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
The analysis of the state and prospects of development of autonomous electric power sources with electric reciprocating motion generators has shown that at present, low-power systems “free-piston engine – electromechanotron сonverter based on an electric
A. B. Menzhinsky, A. N. Malashin
doaj   +1 more source

Influence of reciprocating friction on friction and wear characteristics of MoS2 films

open access: yesResults in Engineering, 2023
Molybdenum disulfide has the characteristics of reducing friction and wear resistance and is often used as a solid lubricant in spacecraft. Due to the particularity of space missions, part of the rotating structure needs to perform reciprocating motion ...
Shaojiang Dong, Weilun Cheng, Jinbao Yao
doaj   +1 more source

Structural and CFD analyses of a reciprocating-airfoil (RA) driven UAV wing under maximum lift and inertia forces

open access: yesDrone Systems and Applications, 2022
The reciprocating-airfoil (RA) driven vertical take-off and landing (VTOL) aircraft is a new aircraft concept that utilizes the reciprocating motion of the wings to provide lift for take-off and landing.
Johnson Okoduwa Imumbhon   +2 more
doaj   +1 more source

The kinematic design of mold clamping mechanism with minimal maximum acceleration

open access: yesAdvances in Mechanical Engineering, 2020
Typically, the motion of the output link of the mode clamping mechanism has reciprocating linear motion, but the motion of the input link can be reciprocating rocking motion or reciprocating linear motion.
Long-Chang Hsieh   +2 more
doaj   +1 more source

Motion parameter optimization of reciprocating vibrating screen based on discrete element method

open access: yesShipin yu jixie, 2023
Objective: To determine the precise quantitative relationship between screening efficiency and motion parameters for reciprocating vibrating screen, and to obtain the movement parameters with the optimal screening efficiency.
REN Ning   +3 more
doaj   +1 more source

Experimental Study on Friction and Wear Characteristics of Hydraulic Reciprocating Rotary Seals

open access: yesLubricants, 2023
Wear is one of the main failure causes of hydraulic seals. Wear will lead to degradation in the mechanical properties and sealing properties of seals. Compared with hydraulic seals with one-way rotational motion, the hydraulic reciprocating rotary seals ...
Zongyi Zhang   +6 more
doaj   +1 more source

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