MODEL STUDY AND APPLICATION ON SURFACE PRESSURE MEASUREMENT OF STRUCTURE WATER ENTRY by ZHANG YueQing, XU Fei, LI JianChen, LI JianFen

“…Firstly the parameter of PVDF is calibrated in the static and dynamic state,using which the distribution of surface pressure is obtained. Then different situations of the experiment are simulated by LS-DYNA and the test pressures are proved further. …”
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Finite Element Simulation and Experimental Verification of Tightness the Transmission Joint Surface by Chen Yun, Liu Shidao

Subjects: “…Transmission;Joint surface;FEM;Surface pressure…”
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Evaluation method for the mechanical diamond retention of impregnated bit matrix by Xiaojun ZHAO, Longchen DUAN, Songcheng TAN, Xiaohong FANG

Subjects: “…diamond surface pressure…”
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DYNAMIC EXPLICIT FEM IN WHEELS RADIAL FATIGUE TEST by QIN HaiYi, WU HuiPing, JIA JingHua, MA Ning

Subjects: “…Radial fatigue test;Dynamic explicit method;Bolt pretension;Wheels surface pressure;Weld S-N curve…”
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Research of the Pressure Angle Optimization of Main Reducer Gear based on ADAMS by Zhu Yunlong, Xu Jinli, Han Shaojun, Lu Lei, Liu Chuan

“…It is concluded that the meshing vibration performance of main reducer gears system could be improved when the convex surface pressure angle of the passive gear tooth decreased 1° at the same time the concave surface pressure angle of the passive gear tooth increased 1°. …”
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Numerical analysis of cavitation and impact load characteristics of supercavitating vehicle entering water at high speed by YU Yilan, SHI Yao, PAN Guang, CHE Peiqi

“…Through simulation, the cavitation evolution process, cavitation size, impact load change and surface pressure distribution of supercavitating vehicle entering water at different angles and velocities are obtained and compared. …”
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Aerodynamic Layout Designs Using of Microflaps for Flow Control of a Supersonic Finned Projectile

“…With a proper layout of the microflap's location, quick change in the surface pressure distribution can be achieved for rear fins of the projectile, the microflap should be mounted that can increase the high pressure zone, meanwhile, reduce the low pressure zone on the surface of fins, thus modulating the projectile's attitude can be realized.…”
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OPTIMIZATION DESIGN OF COMPOSITE DRILL-BIT SPHERICAL SLIDING BEARING by WU KaiSong, YAN CaiXiu, DENG Tao, ZHAO Pan, JIA TongWei

“…Therefore,the ANSYS finite element analysis was adopted to establish the spherical composite bearing three-dimensional model; Used the contact finite element calculation to comparison and analysis the surface pressure distribution size and regularity of spherical and cylindrical; Lastly,used the spherical radius as design variables and the peak contact pressure as objective function establish composite bit sliding bearing optimization design model. …”
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CONTACT STRESS ANALYSIS AND OPTIMIZATION OF DOUBLE SHOCK SLEEVE MOVABLE TOOTH by SHEN HaiTao, AN ZiJun

“…The contact stress analysis of the movable tooth is of great significance to improve the bearing capacity and service life of the mechanism. The contact surface pressure and subsurface stress field distribution of movable teeth are solved by numerical method. …”
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Numerical investigation on fluid dynamic characteristics around shoulder ventilation of submarine-launched vehicle

“…In order to study the influence of the ventilating cavitation flow at the shoulder of a submerged-launched vehicle on the surface hydrodynamic characteristics, a three-dimensional potential model for the shoulder ventilation of the vehicle was established based on the homogeneous multiphase flow theory, standard RNG k-ε model, Singhal cavitation model and overlapping grid technology, and the numerical simulation of the unsteady evolution process of the ventilated cavitation flow was carried out, and the cavitation flow morphology evolution, surface pressure distribution and resistance characteristics under different ventilation rates were compared. …”
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STUDY ON FLOW CHARACTERISTICS OF WAVE-SHAPED RODS WITH SPATIAL ANGLE OF ATTACK by ZHAO Meng, LIU MeiYing, JIA Yan, LIU XiaoYu, WANG YiHe

“…The results show that the larger the surface inclination,the higher the surface pressure variation. The smaller the wavelength is,the larger the resistivity of the member and the main peak ranges. …”
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Modeling Optimization of an Aviation Hydraulic Shell Pipeline for 3D Printing by WANG Junrun, FU Chunyan, WANG Hui

“…The optimized hydraulic shell surface pressure distribution is more uniform,the pressure loss is reduced by 53.2%,and the performance of the shell is significantly improved.…”
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Low Reynolds Number Propeller Slipstream Interference with Wing Aerodynamic Characteristics by Sun Kaijun, Bao Xiaoxiang, Fu Yiwei

“…The results indicate that the propeller slipstream can significant change the distribution of the surface pressure of the wing and the lift distribution along wingspan and affect the lift and drag characteristics of the wing. …”
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Research on the water and land motion performance of an amphibious vehicle

“…In the water, the fluid numerical method is used to simulate the underwater motion of the robot's swing arm in the extended and retracted state, obtain the traveling resistance and surface pressure of the robot's swing arm crawler in the two states, analyze the relationship between the robot's traveling resistance and speed, obtain the relationship expression between the robot's traveling resistance and the traveling speed, and provide data support of the state selection and speed setting of the robot's underwater crawler.…”
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Study on sensitivity analysis of tooth surface roughness parameters and contact stress by CHEN Jiling, TANG Jinyuan, YANG Duo

“…The results show that the overall influence of the maximum shear stress on the gear tooth contact and the maximum surface pressure are arranged in the following order: the arithmetic average height (Sa) and the peak volume (Vmp), in which Sa has a strong correlation.…”
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Research on Sidewall Interference Control in Airfoil Wind Tunnel Test Based on Vortex Generator by WEI Binbin, GAO Yongwei, SHI Yao, LI Dong, HAO Lishu

“…The wind tunnel sidewall boundary layer needs to be controlled since the sidewall interference in the wind tunnel test of the large-thickness airfoil is serious.In this paper, passive vortex generators(VG) are used at first time to control the sidewall interference effect on the large-thickness airfoil FX77-W-400, and two VG-based sidewalls interference control configurations are proposed, i.e.sidewall VG and airfoil VG.The effects of the VG installation position on the airfoil aerodynamic performance and pressure field details are studied, and the proper orthogonal decomposition(POD) is used to study the airfoil surface pressure field structure.The research shows that:the passive VG used in this work can effectively control the sidewall interference.The peak suction of the airfoil surface is affected by sidewall VG and airfoil VG.There is a significant linear correlation between the lift coefficient and the peak suction within the scope of this study.The sidewall interference control method used in this work maintains the main structure of the reference airfoil surface flow.The research is of certain guiding significance for the wind tunnel test and theoretical research.…”
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Study on Pressure Coefficient in Process of Double Slot Nozzle Jet Impingement on Sinusoidal Colliding Strip

“…Studying the distribution characteristics of the surface pressure coefficient of the strip during the suspension process could provide important theoretical references for the high-efficiency and high-value production of the air-cushion furnace. …”
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Research on hydrodynamic characteristics of cylinder planing

“…It is related to the surface pressure and frictional force distribution of cylinder during the low-speed planing. …”
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Load-Reducing Characteristics of Gas Screen During Underwater Launch of the Vehicle by SHI Yao, LU Jiewen, DU Xiaoxu, GAO Shan, REN Jinyi

“…Finally, the mass flow rate increases from 2 kg/s to 16 kg/s, with the moment on the vehicle reduced by 80.8% and the peak surface pressure reduced by 82.8%.…”
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Study on Cruise Drag Characteristics of Low Drag Normal Layout Civil Aircraft

“…For the wing body fairing have significant impact on the wing shape lower surface pressure distribution, the winglet have important impact on the wing tip flow, so the single part drag reduction measure is not feasible, need to carry out integrated drag reduction study on the wing related three drag reduction measures, and study the drag reduction measure's drag reduction decrement, put a reference for the normal layout civil aircraft's drag reduction. …”
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