Results 11 to 20 of about 15,248 (234)

Strength Analysis of a Novel High-Pressure Die with Double-Layered Split Structure

Metals, 2018
A novel double-layered split die (DLSD) was designed to have higher pressure-bearing capacity and larger sample cavity volume. In DLSD, the cylinder and first layer supporting ring are split into several blocks.
Zhuo Yi, Wenzhi Fu, Mingzhe Li, Liang Zhao, Liyan Wang, Rui Li   +5 more
doaj   +1 more source

Active Disturbance Rejection Control With Linear Quadratic Regulator for Power Output of Hydraulic Wind Turbines

IEEE Access, 2020
In this research, a new method based on Active Disturbance Rejection Control (ADRC) for controlling the power output of hydraulic wind turbines (HWT) is proposed. There are three major problems in the power control system of HWT. The first problem is the
Chao Ai, Jiawei Guo, Wei Gao, Lijuan Chen, Guangling Zhou, Zengrui Han, Xiangdong Kong   +6 more
doaj   +1 more source

Coupling effect of ultrasonic vibration and beam oscillation on FQZ soften inhibition of laser welded Al-Mg alloy joints

Materials Letters: X, 2023
A novel ultrasonic vibration assisted laser beam oscillation welding (UV-LBOW) method was developed and applied on the butt-welding of Al-Mg alloy sheets.
Jiang Bi, Liukun Wu, Zeqi Liu, Haixiang Wang, Qian Li, Zhuoyun Yang   +5 more
doaj   +1 more source

Prediction and prevention of fracture defect in plastic forming for aluminum foam sandwich panel

Journal of Materials Research and Technology, 2021
In this study, the predicting and avoiding method of core fracture in plastic forming for aluminum foam sandwich panel (AFSP) were investigated. By observing the macroscopic core cracks and microscopic morphology of the fracture surfaces, the core ...
Xi Zhang, Qing-Min Chen, Zhong-Yi Cai
doaj   +1 more source

A High Compressibility Pressure—Sensitive Structure Based on CB@PU Yarn Network

Sensors, 2018
In this work, a piezoresistive sensor structure based on carbon black (CB)@polyurethane (PU) yarn material was developed. Specifically, CB@PU yarn was constructed by the polymer-mediated water-based electrostatic deposition method.
Xingtong Chen, Chunguo Liu, Shuo Liu, Bing Lyu, Donglai Li   +4 more
doaj   +1 more source

A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge

Sensors, 2020
In this work, polyurethane sponge is employed as the structural substrate of the sensor. Graphene oxide (GO) and polypyrrole (PPy) are alternately coated on the sponge fiber skeleton by charge layer-by-layer assembly (LBL) to form a multilayer composite ...
Bing Lv, Xingtong Chen, Chunguo Liu
doaj   +1 more source

Finite Element Simulation and Experimental Study of U-Bending Forming of High-Strength Mg-Gd-Y-Zn-Zr Alloy

Metals, 2023
In this study, the constitutive equation of the high-strength Mg-Gd-Y-Zn-Zr alloy sheet was established by tensile tests at different temperatures and different tensile rates. The U-shape bending forming process of the sheet was simulated under different
Hao Wang, Anqi Huang, Shiping Xing, Chunxiang Zhang, Junting Luo   +4 more
doaj   +1 more source

Microstructure Heredity of Inconel 718 Nickel-Based Superalloy during Preheating and Following Deformation

Crystals, 2020
Preheating and compression tests of Inconel 718 superalloy double cone specimens were carried out to investigate the microstructure heredity during hot working.
Jianguo Wang, Dong Liu, Xiao Ding, Haiping Wang, Hai Wang, Jingqing Chen, Yanhui Yang   +6 more
doaj   +1 more source

Methods for Improving the Quality of Forgings and Blanks Obtained by Forging through Intensifying Shear or Alternating Strain in the Bulk of Deformable Metal

Успехи физики металлов, 2023
The article presents methods for improving the quality of forgings and workpieces obtained by forging by intensifying shear or alternating strain in the bulk of the deformed metal.
I. E. Volokitina, A. B. Naizabekov, E. A. Panin, and S. N. Lezhnev
doaj   +1 more source

Model Predictive Control of a Shipborne Hydraulic Parallel Stabilized Platform Based on Ship Motion Prediction

IEEE Access, 2020
Shipborne stabilized platform is an important equipment to ensure the stability of shipborne equipment relative to inertial coordinate system. This paper presents a model predictive control strategy based on ship motion prediction (MPMPC) for ship ...
Hongbin Qiang, Song Jin, Xinyu Feng, Dapeng Xue, Lijie Zhang   +4 more
doaj   +1 more source