Results 41 to 50 of about 1,468 (258)

往复泵曲柄连杆机构动力学建模与分析

open access: yesJixie chuandong, 2012
Based on the multi-body dynamics theory,the parametric dynamic model of the crank-connecting rod mechanism of reciprocating pump is proposed.By simulation,the kinematic and mechanical characteristics of the crank-connecting rod mechanism are studied.The ...
覃维献
doaj  

Spectrally Programmable Spin‐Polarized Photocurrents in WSe2–NiPS3 Magnetic van der Waals Heterostructures

open access: yesAdvanced Materials, EarlyView.
Heterostructure photodiode devices of p‐type WSe2 with n‐type NiPS3 constructs spectrally protected spin‐polarized photocurrents. The energy of the excitation photon serves as an independent control parameter for spin‐selective photocurrent generation. ABSTRACT Efficient generation and control of spin‐polarized currents in semiconductors remain central
Rajesh Kumar Yadav   +8 more
wiley   +1 more source

THE INERTIA FORCE EQUILIBRIUM ANALYSIS OF CRANK-GROUP DRIVING MECHANISM

open access: yesJixie qiangdu, 2017
Aiming at overcoming the deficiency of balance of the Crank-group Driving Mechanism,utilize Mass moment substitution method to translate the equilibrium problem of inertia force of Crank-group Driving Mechanism into the additional mass moment of branch ...
WU Yao   +3 more
doaj  

Wear Analysis of Crank Slider Mechanism based Stationary Clearance Link Model

open access: yesJixie chuandong, 2021
Wear is one of the main causes of the failure of mechanical equipment and mechanical parts. The coupling between wear and dynamic response of system has an important effect on the performances of mechanism.
Rufei Yu, Wei Chen
doaj  

Dynamical analysis of a vertical excited pendulum using He’s perturbation method

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
The current paper investigates the nonlinear dynamics of an excited pendulum by a crank-shaft-slider mechanism (CSSM), in which it is restricted to move vertically.
Abdallah A Galal   +3 more
doaj   +1 more source

Programming Light‐Driven Surface Topographies in Liquid Crystal Elastomers for Potential Biomedical Applications Through Combined Experiments and Simulations

open access: yesAdvanced Materials Technologies, EarlyView.
A combined experimental and simulation study of light‐responsive liquid crystal elastomer surfaces operating under physiological conditions is reported, demonstrating programmable and highly spatially controlled topography formation through bottom‐side photomask exposure. Our study establishes a foundation for dynamic, light‐responsive biosurfaces with
Ruth M. C. Verbroekken   +4 more
wiley   +1 more source

递纸传动机构间隙动力学特性研究

open access: yesJixie chuandong, 2013
Taking the component of the crank and connecting rod mechanism with revolute clearance joint in the sheet transfer mechanism of print ing machine as the research object,on the basis of the vector clearance and the penetration depth of contact,the ...
午丽娟, 李爱平, 刘雪梅
doaj  

Determination of Energy Losses of the Crank Press Mechanism

open access: yesMachines
This paper focuses on determining the friction energy loss in the mechanism of a mechanical crank press. After defining the crank press mechanism and how it works, we describe the energy balance of a technological operation—forming.
Jan Hlavac, Jiri Dekastello
doaj   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

open access: yesAdvanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu   +6 more
wiley   +1 more source

Scavenge flow analysis of opposed-piston two-stroke engine based on dynamic characteristics

open access: yesAdvances in Mechanical Engineering, 2015
Opposed-piston two-stroke engine has been proposed by Beijing Institute of Technology to improve power density and complete machine balance relative to conventional engines. In order to study opposed-piston two-stroke engine scavenging flow, a scavenging
Fu-kang Ma   +3 more
doaj   +1 more source

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