Results 11 to 20 of about 515 (183)

A Mixed Lubrication Model for Predicting the Lubrication Performance Degradation Behavior of Slipper Pair in Early Wear Failure

IEEE Access, 2023
To reveal the lubrication performance degradation mechanism of the slipper pair in the high-pressure piston pump during early wear failure. The three-dimensional fractal function has been used to construct the surface morphology of the slipper, and ...
Siyuan Liu, Ziang Li, Wen Sun, Chao Ai, Weizhe Zhang, Yongqiang Zhang, Zilong Chen   +6 more
doaj   +1 more source

Effect of Adding a Styrene-Butadiene Rubber Damper to A Sled Sample and Extraction of Its Equivalent Stiffness and Damping [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2023
Protection of sled systems from destructive vibrations is inevitably under attraction due to the importance of sled testing in the aerospace industry. A pair of SBR dampers were used between the slipper and the sled body to reduce vertical vibrations, so
Mohammad Reza Najafi, Saied Mahjoub Moghadas   +1 more
doaj   +1 more source

Nonlinear dynamic modeling and analysis for aviation axial piston pump in center spring return mechanism

Journal of Low Frequency Noise, Vibration and Active Control, 2021
Aviation axial piston pump is an important energy conversion component in aircraft hydraulic system, and the study on the nonlinearity of key operating mechanism is very necessary for improving the reliable operation of the pump.
Jie Hang, Yunhua Li, Peng Zhang, Liman Yang   +3 more
doaj   +1 more source

Simulation Study on Bearing Lubrication Mechanism and Friction Characteristics of the Biomimetic Non-Smooth Surface of a Cross-Scale, Second-Order Compound Microstructure

Lubricants, 2023
The reasonable design of biomimetic non-smooth surfaces is a novel and effective way to solve problems such as the poor lubricity and serious friction and wear of friction pairs of seawater axial piston pumps.
Yingna Liang, Cunyuan Wang, Zongyi Zhang, Zhepeng Zhang, Wei Wang, Hao Xing, Tianyuan Guan, Dianrong Gao   +7 more
doaj   +1 more source

Diversification of cephalic shield shape and antenna in phyllosoma I of slipper and spiny lobsters (Decapoda: Achelata)

Frontiers in Marine Science, 2023
Slipper (Scyllaridae) and spiny (Palinuridae) lobsters show a complex life cycle with a planktonic larval phase, named phyllosoma. This unique larval form within Achelata (Decapoda) is characterized by a transparent dorsoventrally compressed body and a ...
José María Landeira, Diego Deville, Effrosyni Fatira, Zhixin Zhang, Sven Thatje, Qiang Lin, Santiago Hernández-León, Kaori Wakabayashi   +7 more
doaj   +1 more source

Lubrication characteristics analysis of slipper pair of digital valve distribution axial piston pump

Advances in Mechanical Engineering, 2022
The digital valve distribution axial piston pump is a swashplate rotary piston pump, the force on slippers is different from that of traditional axial piston pump.
Kaiping Zhao, Tao He, Chuanli Wang, Qiangman Chen, Zhipeng Li   +4 more
doaj   +1 more source

Friction and Wear Study on Friction Pairs with a Biomimetic Non-smooth Surface of 316L Relative to CF/PEEK under a Seawater Lubricated Condition

Chinese Journal of Mechanical Engineering, 2019
Current studies of a seawater axial piston pump mainly solve the problems of corrosion and wear in a slipper pair by selecting materials with corrosion resistance, self-lubrication, and wear resistance.
Yingna Liang, Dianrong Gao, Bo Chen, Jianhua Zhao   +3 more
doaj   +1 more source

Dynamic Prediction Model for Uneven Slipper Wear Under Complex Lubrication Conditions Considering Lubrication–Wear Coupling

Lubricants
It is difficult to experimentally determine the real-time wear coefficient of a slipper pair under complex lubrication conditions. To address this challenge, this study proposes a predictive method for slipper wear, eliminating the need for experimental ...
Hu Mo, Shigang Qin, Wei Zhou, Yunan Yang, Penghui Duan, Fu Peng   +5 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Research Progress on Surface Design and Solid-Liquid Composite Lubrication Technology of Friction Pairs in High-Pressure Plunger Pumps [PDF]

Cailiao Baohu
Plunger pumps， as one of the most critical power components in mechanical hydraulic systems， are widely used in aerospace， construction machinery and other fields due to their advantages of high rotational speed， high pressure， high transmission ...
CUI Bin, HOU Shanshan, ZHANG Rui, LI Panpan, LIU Xiaohong, JI Li, LI Hongxuan
doaj   +1 more source