Results 81 to 90 of about 1,087,452 (200)

Space fabrication demonstration system [PDF]

The lower right aluminum beam cap roll forming mill was delivered and installed in the beam builder. The beam was brought to full operational status and beams of one to six bay lengths were produced to demonstrate full system capability. Although the cap

core   +1 more source

Optimization and Finite Element Simulation of Wear Prediction Model for Hot Rolling Rolls

Metals
Roll wear significantly affects production efficiency and product quality in hot-rolled strip steel manufacturing by reducing roll lifespan and impeding the control of strip shape. This study addresses these challenges through a comprehensive analysis of
Xiaodong Zhang, Zizheng Li, Boda Zhang, Jiayin Wang, Sahal Ahmed Elmi, Zhenhua Bai   +5 more
doaj   +1 more source

Theoretical Study on Error Compensation for Online Roll Profile Measurement Considering Roller System Deformation

Metals
Online roll profile measurement technology can measure in real time without changing the rolls, which has advantages that traditional roll profile measurement methods cannot compare with.
Jiankang Xing, Yan Peng
doaj   +1 more source

LIFE EVALUATION OF THE CASTING REPAIR PART AT THE END OF THE WORK ROLL NECK OF A FOUR-HIGH ROLLING MILL

Jixie qiangdu
As the core component of strip mills,roll consumption has an essential influence on the production cost.With the increasing demand for cost reduction and efficiency increase caused by the intensifying competition of iron and steel enterprises,the ...
QU HaiXia, QIN XiaoFeng
doaj  

Roll motion characteristics of a polar research ship with ice accumulation in beam waves

International Journal of Naval Architecture and Ocean Engineering
Stability of polar vessels could be deteriorated due to ice accumulation, making it crucial to investigate the dynamic behavior of the vessel under harsh polar conditions. In this work, the effect of ice accumulation on the roll motion characteristics of
Jianzhang Qi, Wei Chai, Jun Wu, Meng Cui, Boao Cai, Li Zhou   +5 more
doaj   +1 more source

The effects of seasonal and latitudinal earth infrared radiance variations on ERBS attitude control [PDF]

Analysis performed in the Flight Dynamics Facility by the Earth Radiation Budget Satellite (ERBS) Attitude Determination Support team illustrates the pitch attitude control motion and roll attitude errors induced by Earth infrared (IR) horizon radiance ...
Dehen, J., Foch, D., Harvie, E., Phenneger, M. C., Virdy, M.   +4 more
core   +1 more source

ELECTRON-MICROSTRUCTURE OF THE WORK ROLL FOR COLD ROLLING (I)

Tetsu-to-Hagane, 1957
Takuo Ando, Keiya Gokan, Kenichi Arase
openaire   +3 more sources

New stability results for long-wavelength convection patterns

, 1997
We consider the transition from a spatially uniform state to a steady, spatially-periodic pattern in a partial differential equation describing long-wavelength convection.
Silber, Mary, Skeldon, Anne C.
core   +1 more source

MULTI-AXIAL FATIGUE LIFE PREDICTION METHOD OF WORKING ROLL NECK BEARING SECTION BASED ON STRAIN ENERGY

Jixie qiangdu
The bearing section of the work roll neck often suffers burnout failure due to bearing seizure, and additive manufacturing is usually used in the field to repair it.Life prediction of the repaired roll neck is the key to predict the safe service of the ...
JIN Kai, QIN Xiaofeng, WANG Yong, QU Haixia, LI Shuojie, QIN Zhuoyang, XIE Weihang, MA Feiyang   +7 more
doaj  

Performance Evaluation of a PID and a Fuzzy PID Controllers Designed for Controlling a Simulated Quadcopter Rotational Dynamics Model

Journal of Engineering, 2017
This work is concerned with designing two types of controllers, a PID and a Fuzzy PID, to be used for flying and stabilizing a quadcopter. The designed controllers have been tuned, tested, and compared using two performance indices which are the Integral
Laith Jasim Saud, Rasha Shehab Mohammed
doaj   +2 more sources