|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Fluid-solid Interaction Model for Hydraulic Reciprocating O-ring Seals显示文摘Elastohydrodynamic lubrication characteristics of hydraulic reciprocating seals have significant effects on sealing and tribology performances of hydraulic actuators,especially in high parameter hydraulic systems.Only elastic deformations of hydraulic reciprocating seals were discussed,and hydrodynamic effects were neglected in many studies.The physical process of the fluid-solid interaction effect did not be clearly presented in the existing fluid-solid interaction models for hydraulic reciprocating O-ring seals,and few of these models had been simultaneously validated through experiments.By exploring the physical process of the fluid-solid interaction effect of the hydraulic reciprocating O-ring seal,a numerical fluid-solid interaction model consisting of fluid lubrication,contact mechanics,asperity contact and elastic deformation analyses is constructed with an iterative procedure.With the SRV friction and wear tester,the experiments are performed to investigate the elastohydrodynamic lubrication characteristics of the O-ring seal.The regularity of the friction coefficient varying with the speed of reciprocating motion is obtained in the mixed lubrication condition.The experimental result is used to validate the fluid-solid interaction model.Based on the model,The elastohydrodynamic lubrication characteristics of the hydraulic reciprocating O-ring seal are presented respectively in the dry friction,mixed lubrication and full film lubrication conditions,including of the contact pressure,film thickness,friction coefficient,liquid film pressure and viscous shear stress in the sealing zone.The proposed numerical fluid-solid interaction model can be effectively used to analyze the operation characteristics of the hydraulic reciprocating O-ring seal,and can also be widely used to study other hydraulic reciprocating seals. | LIAO Chuanjun HUANG Weifeng WANG Yuming SUO Shuangfu LIU Ying | 2013 | Chinese Journal of Mechanical Engineering2013，26，1： | 10 |
| 2 | Thermal Fluid-Solid Interaction Model and Experimental Validation for Hydrostatic Mechanical Face Seals显示文摘Hydrostatic mechanical face seals for reactor coolant pumps are very important for the safety and reliability of pressurized-water reactor power plants.More accurate models on the operating mechanism of the seals are needed to help improve their performance.The thermal fluid–solid interaction(TFSI)mechanism of the hydrostatic seal is investigated in this study.Numerical models of the flow field and seal assembly are developed.Based on the mechanism for the continuity condition of the physical quantities at the fluid–solid interface,an on-line numerical TFSI model for the hydrostatic mechanical seal is proposed using an iterative coupling method.Dynamic mesh technology is adopted to adapt to the changing boundary shape.Experiments were performed on a test rig using a full-size test seal to obtain the leakage rate as a function of the differential pressure.The effectiveness and accuracy of the TFSI model were verified by comparing the simulation results and experimental data.Using the TFSI model,the behavior of the seal is presented,including mechanical and thermal deformation,and the temperature field.The influences of the rotating speed and differential pressure of the sealing device on the temperature field,which occur widely in the actual use of the seal,are studied.This research proposes an on-line and assembly-based TFSI model for hydrostatic mechanical face seals,and the model is validated by full-sized experiments. | HUANG Weifeng LIAO Chuanjun LIU Xiangfeng SUO Shuangfu LIU Ying WANG Yuming | 2014 | Chinese Journal of Mechanical Engineering2014，27，5： | 10 |
| 3 | Fluid-solid strong-interaction model of mechanical seals in reactor coolant pumps显示文摘The studies on the mechanisms and performances of the mechanical seals in reactor coolant pumps are very important for the safe operations of the pressurized water reactor power plants.Based on the hydrostatic mechanical seal in reactor coolant pumps,an analytical fluid-solid strong-interaction model is proposed in this paper.According to the design features and operational principles of the seal,an analytical method to calculate the mechanical deformation of the seal assembly is developed based on the ring deformation theory.A strong-interaction algorithm combining the analysis of the mechanical deformation of the seal assembly and flow field between the seal faceplates is utilized,in which the three kinds of equations including the fluid domain,solid domain and coupling action are constituted in the same equations set and all the variables are solved simultaneously.So the analytical fluid-solid strong-interaction model used for the seal is built.Moreover,the model is verified by the experimental results.Based on the model,the design parameters of the seal are studied.Two different conditions of the general case and fixed seal leakage rate are discussed respectively,and the regularities that the seal behaviors are affected by the parameters of the holding screws on the clamp rings and seal faceplates are obtained.The research results can provide a theoretical basis for performance analysis,design and assemblage of the seal.Compared to the numerical methods,the proposed model has the unique advantages of high efficiency,convenience and easy application of constraints. | LIAO ChuanJun HUANG WeiFeng SUO ShuangFu LIU XiangFeng WANG YuMing | 2011 | Science China(Technological Sciences)2011，54，9： | 9 |
| 4 | The Mars rover subsurface penetrating radar onboard China's Mars 2020 mission显示文摘China's Mars probe,named Tianwen-1,including an orbiter and a landing rover,will be launched during the July-August 2020 Mars launch windows.Selected to be among the rover payloads is a Subsurface Penetrating Radar module(RoSPR).The main scientific objective of the RoSPR is to characterize the thickness and sub-layer distribution of the Martian soil.The RoSPR consists of two channels.The low frequency channel of the RoSPR will penetrate the Martian soil to depths of 10 to 100 m with a resolution of a few meters.The higher frequency channel will penetrate to a depth of 3 to 10 m with a resolution of a few centimeters.This paper describes the design of the instrument and some results of field experiments. | Bin Zhou ShaoXiang Shen Wei Lu Qing Liu ChuanJun Tang ShiDong Li GuangYou Fang | 2020 | Earth and Planetary Physics2020，4，4： | 6 |
| 5 | Synthesis,characterization and magnetic properties ofβ-MnO2 nanorods显示文摘 | Liu XianMing Fua ShaoYun Huang ChuanJun | 2005 | Powder Technology2005，154，： | 1 |
| 6 | Study on the dyeing of wool fabrics with Phytolacca berry natural dyes显示文摘 | Jie Liu Ping Zhu Chuanjun Zhao Shuying Sui Zhaohong Dong Lin Zhang | 2014 | Fibers and Polymers2014，，8： | 1 |
| 7 | Magnetic properties of Ni ferrite nanocrystals dispersed in the silica matrix by sol-gel technique显示文摘 | Liu Xianming Fu Shaoyun Huang Chuanjun | 2004 | J Magn Magn Mater2004，281，： | 1 |
| 8 | 显示文摘 | Liu Xianming Fu Shaoyun Huang Chuanjun | 2005 | Mater Sci Engin B2005，121，： | 1 |
| 9 | The MMOC and MMOCAA schemes for the finite volume element method of convection-diffusion prob- lems显示文摘 | CHEN Chuanjun LIU Wei | 2011 | Journal of Computational and Applied Mathematics2011，236，6： | 1 |
| 10 | Magnetic properties of Ni ferrite nanocrystals dispersed in the silica matrix by sol-gel technique 显示文摘 | LIU Xianming FU Shaoyun HUANG Chuanjun | 2004 | J Magn Magn Mater2004，281，： | 1 |
| 11 | Dielectric AlN/epoxy and SiC/epoxy composites with enhanced thermal and dynamic mechanical properties at low temperatures显示文摘In a superconducting magnet,the thermal properties of the insulating material at low temperatures is an important technical index to ensure the normal operation of a superconducting coil.Herein,a low-temperature thermal conductivity testing device with a tiny uncertainty was developed to measure the composites.Furthermore,SiC/epoxy and AlN/epoxy composites were prepared and their properties were tested at low temperatures.The results showed that the composites have a better thermal conductivity at low temperatures than pure epoxy.In addition,the AlN/epoxy and SiC/epoxy composites have excellent dynamic mechanical properties and low coefficient of thermal expansion.Due to the fair thermal and dynamic mechanical properties,the composites will have potential application in the superconducting magnet. | Zhengrong Zhou Rongjin Huang Huiming Liu Yalin Zhao Zhicong Miao Zhixiong Wu Wanyin Zhao Chuanjun Huang Laifeng Li | 2022 | Progress in Natural Science:Materials International2022，32，3： | 1 |
| 12 | Nanostructure and magnetic properties of NiFe204 in the silica matrix prepared by sol-gel technique显示文摘 | Liu Xianming Fu Shaoyun Huang Chuanjun | 2004 | J Magn Magn Mater2004，281，23： | 1 |
| 13 | A new method for calculating the activity of stable compound from binary phase diagram显示文摘A new method to calculate the activity of a stable compound in a binary phase diagram was presented and dis- cussed. According to the formula for calculating activity from the binary phase diagram, the equilibrium constant can be calculated through the mass action principle after the activities of two pure components were computed respectively. Based on that, the activity of a stable compound can be easily obtained at last. The activity of the stable compound InSb is calcu- lated in the In-Sb binary system by using this method. The result is well consistent with another calculation value. | CHEN Dengfu DONG Lingyan BAI Chenguang LIU Qingcai WANG Chuanjun | 2006 | Rare Metals2006，25，5： | 1 |
| 14 | A novel formation process of polyaniline micro-/nanofier network on solid substrates显示文摘 | Liu Chuanjun Kenshi Hayashi | 2009 | Synthetic Metals2009，159，11： | 1 |
| 15 | The Effect of the Addition of Low Profile Additives on the Curing Shrinkage of Unsaturated Polyester Resins显示文摘 | Liu ChuanJun Nijhof A H J Kiasat M S | 1999 | Polymer Engineering and Science1999，39，1： | 1 |
| 16 | Transition metal carbonate anodes for Li-ion battery: fundamentals,synthesis and modification显示文摘Even though transition metal carbonates(TMCs, TM = Fe, Mn, Co, Ni etc.), show high theoretical capacities, rich reserves and environmental friendliness as anodes for lithium-ion batteries(LIBs), they suffer from sluggish electronic/ionic conductivities and huge volume variation, which severely deteriorate the rate capacities and cycling performances. Understanding the intrinsic reaction mechanism and further developing ideal TMC-based anode with high specific capacity, excellent rate capabilities, and longterm cycling stability are critical for the practical application of TMCs. In this review, we firstly focus on the fundamental electrochemical energy-storage mechanisms of TMCs, in terms of conversionreaction process, pseudocapacitance-type charge storage, valence change for charge storage and catalytic conversion mechanisms. Based on the reaction mechanisms, various modification strategies to improve the electrochemical performance of TMCs are summarized, covering:(i) micro-nano structural engineering, in which the influence factors on the morphology are discussed, and multiple architectures are listed;(ii) elemental doping, in which the intrinsic mechanisms of metal/nonmetal elements doping on the electrochemical performance are deeply explored;(iii) multifunctional compositing strategies, in which the specific affections on structure, electronic conductivity and chemo-mechanical stability are summarized.Finally, the key challenges and opportunities to develop high-performance TMCs are discussed and some solutions are also proposed. This timely review sheds light on the path towards achieving cost-effective and safe LIBs with high energy density and long cycling life using TMCs-based anode materials. | Rui Zhang Qingfeng Fu Peng Gao Wang Zhou Hui Liu Chaohe Xu Jian-Fang Wu Chuanjun Tu Jilei Liu | 2022 | Journal of Energy Chemistry2022，31，7： | 1 |
| 17 | Environmental enrichment promotes neural remodeling in newborn rats with hypoxic-ischemic brain damage显示文摘We evaluated the effect of hypoxic-ischemic brain damage and treatment with early environmental enrichment intervention on development of newborn rats,as evaluated by light and electron mi-croscopy and morphometry.Early intervention with environmental enrichment intelligence training attenuated brain edema and neuronal injury,promoted neuronal repair,and increased neuronal plasticity in the frontal lobe cortex of the newborn rats with hypoxic-ischemic brain damage. | Chuanjun Liu Yankui Guo Yalu Li Zhenying Yang | 2011 | Neural Regeneration Research2011，6，20： | 0 |
| 18 | Blood pressure monitoring via double sandwich-structured triboelectric sensors and deep learning models显示文摘Real-time blood pressure monitoring is essential for the timely diagnosis and treatment of cardiovascular disease.Many traditional prediction methods estimate blood pressure by measuring multiple sets of physiological signals with energyconsuming sensors.Herein,a continuous,cuffless and self-powered blood pressure monitoring system was developed based on a new double sandwich-structured triboelectric sensor and a novel blood pressure method estimation.A pyramid-patterned sensor based on the double sandwich structure realizes a sensitivity of 0.89 V/kPa in a linear range of 0–35 kPa,which is more than twice of the conventional single electrode structure.The sensor processes a low pressure detection limit of 1 g andfast response time of 32 ms.Hence,it can easily capture the pulse signal at the radial artery.Furthermore,a novel method for estimating blood pressure using pulse waves accompanied by the user’s background information was proposed.This method measures only one set of pulse signals and is portable.A deep learning model with multi-network structures was developed to improve the estimation accuracy.The mean absolute error and standard deviation of error for systolic and diastolic blood pressure(SBP and DBP)estimations were 3.79±5.27 and 3.86±5.18 mmHg,respectively.This work reveals a new sensing structure of triboelectric sensors and offers a novel method for blood pressure estimation. | Xu Ran Fangyuan Luo Zhiming Lin Zhiyuan Zhu Chuanjun Liu Bin Chen | 2022 | Nano Research2022，15，6： | 0 |
| 19 | Pure aromatic hydrocarbons with meta-linked phenyl-core and perihedral fluorene substitutions with/without inert groups of tert-butyl: bipolar hosts for blue phosphorescence显示文摘Two pure hydrocarbon molecules of l,3,5-tris(9-phenyl-9H-fluoren-9-yl)benzene(mTPFB)and l,3,5-tris(2-tert-butyl-9-phenyl-9H-fluoren-9-yl)benzene(tBu-mTPFB)were synthesized.Due to the conjugation blocked connection mode and rigid/bulky substitutions,these two materials possess high triplet energy,enabling them as good hosts for blue phosphor in PhOLEDs.By studying their thermal,electrochemical,electronic absorption and photoluminescent properties,it was found that the influence of the inert tert-butyl group on material photoelectrical properties is negligible.For instance,mTPFB and tBu-mTPFB showed very similar absorption and emission profiles,with almost the same bandgap,triplet energy and energy levels.However,the encapsulation of tert-butyl on the 2-position of 9-phenylfluorene enhanced material thermal stability.Most importantly,carrier transport properties were improved dramatically,as proved by the mono carrier device.Blue phosphorescent OLEDs hosted by tBu-mTPFB showed external quantum efficiency of 15.2%and current efficiency of 23.0 cd/A,which were much higher than that of the OLEDs based on mTPFB with the analogous structure. | Gaowen Liu Chuanjun Wang Baoxiu Mi Minjie Zhuo Changjin Ou Jie Wang Shuchao Zheng Juan Song Zhiqiang Gao Dapeng Cao | 2017 | Science China Chemistry2017，60，2： | 0 |
| 20 | Study on the fluid flow rule of five-cylinder plunger pump hydraulic end显示文摘The change of velocity and pressure of flow field in suction and discharge chamber of five-cylinder plunger pump obtained by CFD under maximum and minimum stroke,the results show that:when the stroke is 79 rpm,the internal of pump head will produce pressure holding,and the internal organization of pump head body will be in a fatigue state of high pressure for a long time.When the rotate angle is small,the peak velocity at the gap of valve disc and valve seat reaches 9.60m/s,which is the orifice jet phenomenon.When the stroke is 299 rpm,the overall velocity curve is relatively stable,but the velocity of fluid flow through the pump head body is larger,and the maximum velocity reaches 18.72 m/s at the bottom corner of valve,it will produce the circumfluence and vortex discharge chamber at the same time,which will cause the increase of vibration of pump head body.So it should use proper punching gear in order to conducive to overall working life of pump. | Zhanghua Lian Yang Liu Tiejun Lin Li Li Zhongqing Lei Chuanjun Han | 2018 | Petroleum2018，4，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员