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Article
Effect of dynamic behaviors of bearing components on friction consumptions of ball bearings at various structural sizes of cage
In this work, a novel dynamic model with estimating its friction consumptions is developed to study the effect of dynamic behaviors of bearing components on friction consumptions at various structural sizes of...
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Article
A prediction model of ultimate forming dimension for profile ring with outer groove in ring rolling process
The profile rings with outer groove are widely used in advanced technological fields. To improve the filling accuracy of the cross-section profile of profile ring with outer groove, the deformation behaviors a...
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Article
Response behavior of grain evolution to forming conditions during hot ring rolling of as-cast 100Cr6 steel
As-cast ring rolling is a short-process new forming technology for ring parts with obvious technical superiority compared to conventional ring rolling. The microstructure improvement of as-cast ring during rol...
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Article
Correlation between vibration and power consumption of angular contact ball bearings under structural size combinations based on nonlinear dynamic model
To explore the correlation between vibration and power consumption of angular contact ball bearings, the evaluation of power consumption was merged into the original nonlinear dynamic model of ball bearings an...
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Article
Molecular Dynamics Simulation and Experimental Verification of Microstructure Evolution of Dual-Phase Ti Alloy During Electroshocking Treatment
The effects of electroshocking treatment (EST) on microstructure evolution of dual-phase Ti were investigated by Molecular Dynamics (MD) simulation. From MD results, EST induced the sliding and rotating motion...
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Article
Multi-objective production scheduling optimization and management control system of complex aerospace components: a review
There is no denying smart manufacturing is a critical step in responding to a new round of energy crises and promoting the high-quality development of the manufacturing industry, among which, the construction ...
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Article
A blank design optimization method of near-net ring rolling for complex stepped-section profile ring
In the complex stepped-section profile ring rolling process, due to the complicated ring geometrical features and metal flowing relationship, the section profile of ring is difficult to fill. In this work, a b...
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Article
Dynamic behaviors of angular contact ball bearings based on nonlinear dynamic model with flexible ring and cage motion whirl
As the fundamental supporting structure in rotating machinery, the dynamic behaviors of angular contact ball bearings directly affect the operational performances of high-speed machine tools and aero-engine. I...
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Article
Source analysis and control strategy of VOCs and PM2.5 in high ozone season in industrial zone of Shaoxing city, China
Ozone (O3) and particulate matter (PM2.5) pollution are major pollution problems faced by global cities. Volatile organic compounds (VOCs) are common precursors of O3 and PM2.5. In this study, the concentration a...
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Article
Numerical simulation and experimental study on two-stage flow forming for thin-walled tubular parts with deep longitudinal outer ribs
Thin-walled tubular parts with longitudinal ribs are important lightweight components. To manufacture the complex shape, incremental forming processes like flow forming are increasingly used. However, it is st...
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Article
Study on power losses of angular contact ball bearings with and without thermal expansions of bearing components
In this work, thermal expansions and thermal displacements of bearing components are firstly integrated into the dynamic model of ball bearings; on this basis, the contact loads, contact angles, sliding and sp...
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Article
Nonlinear dynamic correlation between balls, cage and bearing rings of angular contact ball bearings at different number of balls and groove curvature radii
In this work, the dynamic model of cage and elastohydrodynamic lubrication model were merged into the existing nonlinear dynamic model of ball bearings to explore the nonlinear dynamic correlation between ball...
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Article
Nonlinear dynamic model of ball bearings with elastohydrodynamic lubrication and cage whirl motion, influences of structural sizes, and materials of cage
This paper proposes a nonlinear dynamic model of angular contact ball bearings with elastohydrodynamic lubrication and cage whirl motion. On this basis, the correlation between the dynamic stability of cage, i...
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Article
Nonlinear dynamic mechanisms of angular contact ball bearings with waviness and cage whirl motion
This paper proposes a nonlinear dynamic model of angular contact ball bearings with waviness and cage whirl motion. This original model establishes the interaction between balls, cage and bearing rings so that...
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Article
Numerical simulation and experimental study on radial squeezing forming of ring with inner grid ribs
The ring with inner grid ribs (RWIGR) is a key mechanical part. Because of its light structure, high strength, high stiffness, and high carrying capacity, it is widely used in aerospace, special transporting e...
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Chapter and Conference Paper
Security Association Model: Interdisciplinary Application of 5G Positioning Technology and Social Network
Mobile communication technology is an important information science and technology. With the development and wide application of mobile communication technology, the security of mobile communication has become...
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Article
Enhanced Impact Toughness of Previously Cold Rolled High-Carbon Chromium Bearing Steel with Rare Earth Addition
Impact toughness is affected by chemical composition, defects, microstructure and ambient temperature. Higher impact toughness can prevent premature failure of the bearings. In present work, the microstructure...
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Chapter and Conference Paper
Investigation of a Novel Constructive Hot Ring Rolling Process for Double Metal Composite Ring
Double metal has the advantages of two materials, and is used in specific fields. The traditional manufacture method is welding. And some scholars try to use process to produce a composite ring. However, t...
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Article
Accurate prediction method of initial value of high-speed ball bearing model and gyroscopic torque analysis
An accurate prediction method of initial value of high-speed ball bearing model is studyed and its gyroscopic torque is analyzed. First, a new iterative algorithm for high-speed ball bearings is proposed, in w...
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Article
Effect of die structure on extrusion forming of thin-walled component with I-type longitudinal ribs
The thin-walled component with I-type longitudinal ribs is widely used in aerospace and defense equipment due to its advantage of high-performance and lightweight, yet this complex structure is difficult to ma...
