Results 121 to 130 of about 2,912,492 (277)

A Method of Solving Dynamic Character of High-Speed Angular-Contact Ball Bearing in Matrix Form

open access: yes工程科学与技术, 2009
:The high-speed angular cantact ball bearing under load at three direction is used widespread in industry, and the analysis of it’s dynamic character is the base of bearing design and research of spool system.
zhaochunjiang, 葛世东, 王建梅
doaj  

The Musculoskeletal Consequences of Mouth Breathing in Adults: A Systematic Review

open access: yesThe Laryngoscope, EarlyView.
Chronic mouth breathing can have a negative impact on posture, cause temporomandibular joint dysfunction (TMD), reduced masticatory muscle activity and efficiency, and suprahyoid muscle overuse. Postural changes include a head forward posture and increased lumbar lordosis.
Raewyn G. Campbell   +13 more
wiley   +1 more source

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo   +4 more
wiley   +1 more source

RESEARCH ON THE AXIAL CARRYING CAPACITY OF ANGULAR CONTACT BALL BEARINGS BASED ON COMBINED LOADS

open access: yesJixie qiangdu, 2015
Aim at difficulty to calculate the angular contact ball bearings’ axial carrying capacity in combined loads,considering the different of every roller suffered load and the actual contact angle,using deformation coordination principle and Hertz contact ...
YAN Cheng   +4 more
doaj  

Design, Modelling and Analysis of a Single Raw Four Point Angular Contact Split Ball Bearing to Increase its Life

open access: yes, 2020
-In this paper design of four points angular contact ball bearing is done which is used in Propeller shaft of an air craft. This type of ball bearing can support radial load and axial load in both directions due to the four points of contact available ...
Asst Professor   +2 more
core  

Combined Effects of Thermal Cycling Aging and Reinforcement Content on the Ball‐On‐Disk Wear of Additively Manufactured Polylactic Acid Composites

open access: yesPolymer Composites, EarlyView.
Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan   +5 more
wiley   +1 more source

Development of Sustainable Cellulose Acetate‐Based Filaments for 3D Printing Through Plasticization and Natural Wax Incorporation

open access: yesPolymer Engineering &Science, EarlyView.
Schematic illustration of the forest‐derived filament production for 3D‐printing. ABSTRACT The integration of renewable biopolymers into value‐added engineering applications has become more critical. Cellulose acetate (CA) is a naturally derived polymer and widely used in the design‐oriented optical industry.
Naile Angın, Mesut Uysal
wiley   +1 more source

Effect of video‐based game therapy on activation of scapular muscles in children with thoracic hyperkyphosis

open access: yesPM&R, EarlyView.
Abstract Background Game‐based rehabilitation has been shown to support motor control and muscle activation in children; therefore, video‐based gaming may represent a promising rehabilitation approach for targeting scapular muscles. Objective To examine the effects of video‐based game therapy on scapular muscle activation, strength, and upper extremity
Kubra Kardes   +2 more
wiley   +1 more source

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