郑津洋
主要从事氢能源、高风险设备安全、极端环境下承压设备的全寿命仿真和安全技术、超高压食品加工的教学和科研工作。
个性化签名
- 姓名:郑津洋
- 目前身份:
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- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
化学工程基础学科
- 研究兴趣:主要从事氢能源、高风险设备安全、极端环境下承压设备的全寿命仿真和安全技术、超高压食品加工的教学和科研工作。
郑津洋,汉族,男,1964年11月5日出生,浙江省嵊州市贵门乡人。1987年在浙江大学材料与化工学院获学士学位,1992年获博士学位并留校任教,1997年晋升为教授,次年被批准为博士生导师。1999年至2000年、2002年至2003年分别在美国橡树岭国家实验室、英国曼彻斯特大学做访问教授。2000年被入选浙江省151人才工程第1层次专家。2004年获国家注册安全评价工程师资格。主要从事氢能源、高风险设备安全、极端环境下承压设备的全寿命仿真和安全技术、超高压食品加工的教学和科研工作。承担并圆满完成了大量纵向和横向科研项目,首次研制成功40MPa轻质高压储氢容器和带加强箍半球形封头高压容器,揭示了绕带式压力容器的层间摩擦机理,提出了基于爆破压力的绕带式压力容器设计方法,解决了纳秒级热冲击数值模拟中流固耦合等关键问题,建立了快速启闭式压力容器参数化整体形状优化设计方法,研制成功集机、电、气、声于一体的安全连锁装置。获省部级以上科研成果奖6项;主编过程装备与控制工程专业核心课全国统编教材《过程设备设计》,出版专著《新型绕带式压力容器》、《特殊压力容器》和《长输管道安全――风险辨识、评价、控制》,负责制定我国超高压容器法规《超高压容器安全技术监察规程》、为主参编《化工机械手册》和教材《化工容器及设备设计》,翻译出版《ASME压力容器设计指南》和《欧盟承压设备实用指南》;在国内外重要学术刊物和会议上发表学术论文130多篇;获发明专利1项、实用新型专利4项。现为浙江大学化工系系副主任、国家质检总局特种设备安全技术委员会委员、国家质检总局特种设备安全技术委员会压力容器分委员会副主任、全国锅炉压力容器标准化技术委员会委员、全国气瓶标准化技术委员会委员、中国机械工程学会压力容器分会常务理事、中国化工学会化工机械专业委员会委员、浙江省机械工程学会理事、浙江省压力容器压力管道学会理事长、浙江省安全生产专家组成员、杭州市安全生产专家组成员、《压力容器》和《化工机械》杂志编委。
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主页访问
2649
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关注数
0
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成果阅读
472
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成果数
10
【期刊论文】A review of development in layered vessels using-at-ribbon-wound cylindrical shells
郑津洋, JY Zheng *, GY Sun, LQ Wang
International Journal of Pressure Vessels and Piping 75(1998)653-659,-0001,():
-1年11月30日
Over the past 30 years, more than 7000 layered vessels using at-ribbon-wound cylindrical shells have been manufactured in the People's Republic of China. Theoretical as well as experimental investigations show that there are distinct economical and engineering advantages when using such vessels. The vessel provides the industry with a competitive design suitable for use in the oil refining, chemical and petrochemical fields. The present state of art in strength, design method and some related areas of development of such vessels are described.
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【期刊论文】Investigation on bursting pressure of flat steel ribbon wound pressure vessels
郑津洋, J.Y. Zhenga, *, P. Xub, C. Chen c
International Journal of Pressure Vessels and Piping 75(1998)581-587,-0001,():
-1年11月30日
A flat steel ribbon wound pressure vessel was adopted by ASME Code Case 2229 on 16 August 1996. By considering the additional strength caused by friction between ribbon layers, the authors deduced equations for prediction of longitudinal and hoop bursting pressure of such vessels. The calculation results from the equations, which are easy to calculate and convenient to apply in the engineering, are in excellent agreement with experimental results. It is the theoretical base for equal strength design in axial and circumferential direction. In addition, the criterion of failure form of such a vessel is also given.
Bursting pressure, Flat ribbon wound pressure vessel, High pressure vessel
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【期刊论文】Design philosophy of flat ribbon wound layered pressure vessel
郑津洋, Jin-yang Zheng
International Journal of Pressure Vessels and Piping 75(1998)57-61,-0001,():
-1年11月30日
ASME Code Case 2229 provides minimum requirements for designing and constructing flat ribbon wound layered pressure vessel. The authorhas worked in this field for more than 10 years and describes the design philosophy of the fiat ribbon wound layered pressure vessel through four parts: strength calculation, fatigue strength, engineering design, and nozzle reinforcements. A new joint construction between ribbon wound shell and hemispherical head thinner than shell and comments on the Code Case are also given.
flat ribbon wound layered pressure vessel, nozzle, Code Case
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【期刊论文】New Method for Desing of Flat Steel Ribbon-Wound Pressure Vessels
郑津洋, J. Zheng
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-1年11月30日
It has been observed that the degree of contact between layers and the reside stresses caased by pre-tension winding of ribbons does not influence bursting pressure of flat steel ribbon-wound pressure vessels. This suggests the idea that the desirzble design criteria for vessels of this type should beaed on bursting failure made. Le. wall thickness, should be determined by bursting pressure which it strongly influneces by friction between layers and laminar effects, It is shown that the probabiliry of bursting failure of vessel for which the bursting pressure is not Iess than 2.5 dedgm pressure, is less than 10-10. An example demonstrates that a design procedure basent on this information not only has significant economic advantages, but also can indi. care bursting probability.
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【期刊论文】A more accurate method for predicting the stresses in a flat steel ribbon wornd pressure vessl
郑津洋, J. Y. Zheng, P Xu, L. Q Wang and G. H Zhu
Journal of Pressure Vessel Technology AUGUST 1998, Vol. 120/255,-0001,():
-1年11月30日
Flat steel ribbon wound pressure vessels have been adopted by the ASME boiler and Pressure Vessel Code, Section Ⅷ, Division J and Divesion 2. An excellent safety and scrive record has been built up in the past 34 years. Based on the interfacial friction model proposed by Zheng [1], a more accurate method for predicting the stresses in a flat steel ribbon wound ressure vessel is offered in this paper, taking account of the axial displacement, the change in the helical winding angle, the interfacial friction between ribbon layers and the effect of lamination. Comparison between experimental results of five test vessels with and inside diameter varying from 350 to 1000mm, four different helical winding angles (18, 24, 27 and 30°), two width-thickness rations of the ribbon (20 and 22.86) and rosults of oalculation using the stress formulae available demonstrates that the method in this paper is more accurate and that interfacial friction gives a marked strengthening contribution to the axial strength of the vessel.
pressure vessel,, stress analysis,, flat stecl ribbon wound pressure vessel
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郑津洋, J Zheng *, G Sun, Z Chen, P Xu, A Liu and Y Liu
,-0001,():
-1年11月30日
Considering the fact that the required thickness of a hemispherical head for pressure loading is only half of that necessary for a cylindrical shell, the authors have developed a proprietary junction of shell to hemispherical head where the head is thinner than the shell. In the past 5 years, more than 100 high-pressure vessels with such junctions have been manufactured and safely used in the People's Republic of China. Theoretical investigations as well as engineering applications show that such junctions are rational in structure, convenient in fabrication and low in cost. For example, for a vesscl with an inner diameter of 1000 mm and design pressurc of 31.4MPa, using thc new junction, the head weight is reduced by 54.3 and 27.4 per cent respectively in comparison with a forged fiat head and a hemispherical head with equal thickness of shell. The larger the vessel, the grcater the economic benefits it achieves, In this paper, the authors describe its basic structure, stress characteristics and the engineering design method for the unique junction.
high-pressure vessel,, reinforcing ring,, hemispherical head
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郑津洋, Bohou Xu a, b, *, Jianlong Li a, Fabing Duan a, Jinyang Zheng c
Chaos, Solitons and Fractals 16(2003)93-106,-0001,():
-1年11月30日
The stochastic resonance phenomenon is investigated in the presence of colored noise. The solutions of the signalto-noise ratio gain and the characteristic time are put forward. By means of tuning system parameters, the ability of a bistable system driven by colored noise to process a weak multi-frequency signal can be enhanced. It is found that the effects of the noise-correlation time on signal processing are not great. Furthermore, this method can be applied to sampling signal processing.
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【期刊论文】How to tune the system parameters to realize stochastic resonance
郑津洋, Bohou Xu, Jianlong Li and Jinyang Zheng
J. Phys. A: Math. Gen. 36(2003)11969-11980,-0001,():
-1年11月30日
The paper presents a numerical method of realizing stochastic resonance (SR) by tuning system parameters. Firstly, a simple and effective method of evaluating the system response speed λ1 is introduced. Then the parameterinduced SR problem can be reduced to the parameter optimization problem under the condition λ1=const. To solve this optimization problem, we put forward the following techniques: (i) compensate the deviation from the prescribed system response speed λ1 at each step, (ii) take the curve length increment on the parameter plane as the step size in searching the maximal signal-to-noise ratio (SNR) gain. Finally, a numerical simulation confirms the effectiveness of this method.
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【期刊论文】ELASTIC STRESS WAVES OF CYLINDRICAL RODS SUBJECTED TO RAPID ENERGY DEPOSITION
郑津洋, Jinyang Zhenga, Ping Xua, Qiang Fua, Rusi P.Taleyarkhanb, Seokho H. Kimb
,-0001,():
-1年11月30日
energy deposition into targets and beam absorbers in high-energy accelerator leads to temperature rise at an enormous rate, giving rise to thermally induced stress waves. Understanding and predicting resulting stresses are crucial for robust design and safe operation of such devices. In this paper, a closed form expressions for the induced stresses in cylindrical rods subjected to rapid partial energy deposition have been directly derived; it is then used to estimate highest stress of long cylindrical absorbers and to test the accuracy of thermal shock simulation with Finite Element Analysis (FEA) codes. Characteristics of such stresses were discussed in detail. It was found that ANSYS may produce accurate details in thermal shock simulation if element size and time step used in simulation model meet the criteria proposed by Zheng etc. in another paper.
stress wave, simulation, dynamic response, energy deposition
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【期刊论文】Forming mechanism of double-layered tubes by internal hydraulic expansion
郑津洋, Fujun Liua, *, Jinyang Zheng a, Ping Xu a, Mingze Xu b, Guohui Zhu a
International Journal of Pressure Vessels and Piping 81(2004)625-633,-0001,():
-1年11月30日
In this paper, the hydro-expanding principle for a double-layered tube is set out in detail. The force state of a double-layered tube was analyzed during the process of hydro-forming. The stress and strain for the inner and outer tubes were evaluated using theories of elasticity and plasticity. By using the relation of deformed compatibility of hoop strain, suitable conditions of hydraulic expansion and variable range of hydro-expanding pressure are given, and formulae of hydro-expanding pressure related to residual contact pressure are derived. The results are applicable to cases where the inner tube is both thin-walled and thick-walled.
Double-layered tube, Hydro-expanding pressure, Contact pressure, Residual contact pressure, Hoop strain
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