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Control of spool position of on/off solenoid operated hydraulic valve by sliding-mode controller
Springer Science and Business Media LLC - Tập 29 - Trang 5395-5408 - 2015
Jae-Hak Lee, Young-Won Yun, Hyun-Wook Hong, Myeong-Kwan Park
The use of on/off solenoid operated hydraulic valves instead of proportional valves has been attracting the interest of many researchers and engineers. However, there exist difficulties in controlling the on/off valve because of highly nonlinear characteristics including hysteresis and saturation. This paper considers the application of on/off solenoid operated hydraulic valves to control position...... hiện toàn bộ
Modified breathing mechanism model and phase waterfall plot diagnostic method for cracked rotors
Springer Science and Business Media LLC - Tập 32 - Trang 2527-2539 - 2018
Jingsong Xie, Wei Cheng, Yanyang Zi
Transverse breathing cracks are a primary damage mode in rotor systems and seriously influence the safety and reliability of equipment operation. The vibration characteristics exhibited by cracked rotors when passing through critical speeds serve as important evidence in the diagnosis of cracks, and a breathing mechanism model without weight dominance is needed to study these resonant characterist...... hiện toàn bộ
Contributions of the lower extremity joint on the support moment in normal walking and in unexpected step-down walking
Springer Science and Business Media LLC - Tập 19 - Trang 371-376 - 2005
Young-Ho Kim, Han Sung Kim, Sung-Jae Hwang, Seong-Sik Myeong, Young-Kwang Keum
ARelative contributions of lower extremity joints on the support moment were investigated in this study Three-dimensional gait analyses were performed in normal walking and in unexpected step-down walking For both gait studies, inverse dynamics were performed to obtain each joint moment of the lower extremity, which was applied to the forward dynamics simulation to determine the contributions on t...... hiện toàn bộ
Three-dimensional model of spray forming by fringe element reconstruction method
Springer Science and Business Media LLC - Tập 24 Số 5 - Trang 1091-1096 - 2010
Daeseon Choi
Thermal deformation and stress analysis of disk brakes by finite element method
Springer Science and Business Media LLC - Tập 26 - Trang 2133-2137 - 2012
Sung-Soo Kang, Seong-Keun Cho
The present study was conducted to analyze which the geometry of vents in motorcycle disk brakes affects the surface of the disk. In order to analyze the thermal characteristics of disk brakes, thermal deformation analysis and thermal stress analysis due to heat transfer was carried out through the finite element analysis for ventilated disk and solid disk. By comparing the maximum temperature in ...... hiện toàn bộ
A hybrid method of modified NSGA-II and TOPSIS for lightweight design of parameterized passenger car sub-frame
Springer Science and Business Media LLC - Tập 30 - Trang 4909-4917 - 2016
Dengfeng Wang, Rongchao Jiang, Yinchong Wu
This paper presents a hybrid method integrating modified NSGA-II and TOPSIS, used for lightweight design of the front sub-frame of a passenger car. Firstly, the FE model of the sub-frame is constructed and is validated by modal test. Then, the strength performance of the sub-frame is analyzed under four typical load conditions consisting of braking, acceleration, steady state cornering and vertica...... hiện toàn bộ
Energy-efficient wing design for flapping wing micro aerial vehicles
Springer Science and Business Media LLC - - 2019
Zhonglai Wang, Xiaorong Hu, WU Ying-dong
Effect of flow conditions on spray cone angle of a two-fluid atomizer
Springer Science and Business Media LLC - - 2011
Maziar Shafaee, Sayed Abdolhossein Banitabaei, Mehdi Ashjaee, Vahid Esfahanian
A series solution for spatially coupled deflection analysis of thin-walled Timoshenko curved beam with and without elastic foundation
Springer Science and Business Media LLC - Tập 23 - Trang 475-488 - 2010
Nam-Il Kim, Dong Ku Shin
The exact solutions for the spatially coupled deflection and the normal stress at an arbitrary location of a crosssection of the thin-walled Timoshenko curved beam with symmetric and non-symmetric cross-sections with and without two types of elastic foundations are newly presented using series solutions for the displacement parameters. The equilibrium equations and the force-deformation relations ...... hiện toàn bộ
Feature-based multi-resolution modeling of solids using history-based boolean operations — Part II: Implementation using a non-manifold modeling system —
Springer Science and Business Media LLC - - 2005
Sang Hun Lee, Kyu Yeul Lee, Yoonwhan Woo, Kang-Soo Lee
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