Pub Date : 2015-01-01DOI: 10.16058/j.issn.1005-0930.2015.04.017
Ma Jiuchen, Wu chunbin, Z. Zhigang, Medium Grade Energy
Due to the hydrogeologic particularity of brackish aquifers,a three-dimensional couple numerical model of groundwater flow and heat transferring and solute movement in brackish aquifers was established based upon the thermal and mass transferring in porous media. The calibrated numerical model was used to probe into the thermal transfer characteristics and the variation regularity of the geo-temperature field in different modes of recharge solution salinity with the brackish aquifer energy storage system in Tianjin as an example. The simulated calculation indicates that the change rate of the thermal effects radius is 0. 313,-0. 016.0. 348,-0. 04 m / d in the coarse silt aquifer when the 1∶ 1 mixed solution and the deionization solution recharge during the heat storage period of summer and the intermittent recovery period of next spring separately. The results show that the seepage velocity of groundwater increases while the recharge solution salinity decreases during the energy storage stage,which intensifies heat convection and thermodispersion and then increases the influence scope and range of the recharge solution temperature field. During the intermittent stage,the salinity gradient between the original brackish solution and solution recharge becomes larger when the injection salinity decreases and the mechanical dispersion capability becomes stronger,which shrinks the thermal effects radius of the infiltration solution in brackish aquifers.
基于微咸含水层水文地质的特殊性，基于多孔介质中的传热传质，建立了微咸含水层地下水流动传热与溶质运动的三维耦合数值模型。以天津市微咸含水层蓄能系统为例，利用标定后的数值模型，探讨了不同补给液盐度模式下地温场的传热特征及变化规律。模拟计算表明，热效应半径的变化率为0。313年,0。016.0. 348年,0。以1∶1混合溶液和去离子溶液分别在夏季蓄热期和明年春季间歇恢复期回灌时，在粗粉土含水层中分别为0.04 m / d。结果表明:蓄能阶段地下水渗流速度增大，补给液盐度降低，热对流和热分散加剧，增加了补给液温度场的影响范围和范围;在间歇期，随着注入矿化度的降低和机械分散能力的增强，原始微咸溶液与回注溶液之间的盐度梯度变大，微咸含水层入渗溶液的热效应半径变小。
{"title":"Influence of Recharge Solution Salinity upon the Thermal Transfer Characteristics in Energy Storage Superficial Brackish Aquifers","authors":"Ma Jiuchen, Wu chunbin, Z. Zhigang, Medium Grade Energy","doi":"10.16058/j.issn.1005-0930.2015.04.017","DOIUrl":"https://doi.org/10.16058/j.issn.1005-0930.2015.04.017","url":null,"abstract":"Due to the hydrogeologic particularity of brackish aquifers,a three-dimensional couple numerical model of groundwater flow and heat transferring and solute movement in brackish aquifers was established based upon the thermal and mass transferring in porous media. The calibrated numerical model was used to probe into the thermal transfer characteristics and the variation regularity of the geo-temperature field in different modes of recharge solution salinity with the brackish aquifer energy storage system in Tianjin as an example. The simulated calculation indicates that the change rate of the thermal effects radius is 0. 313,-0. 016.0. 348,-0. 04 m / d in the coarse silt aquifer when the 1∶ 1 mixed solution and the deionization solution recharge during the heat storage period of summer and the intermittent recovery period of next spring separately. The results show that the seepage velocity of groundwater increases while the recharge solution salinity decreases during the energy storage stage,which intensifies heat convection and thermodispersion and then increases the influence scope and range of the recharge solution temperature field. During the intermittent stage,the salinity gradient between the original brackish solution and solution recharge becomes larger when the injection salinity decreases and the mechanical dispersion capability becomes stronger,which shrinks the thermal effects radius of the infiltration solution in brackish aquifers.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67392985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.3969/J.ISSN.1005-0930.2014.01.009
Yuling Liu, Bing Lü, Wenli Wei
Impellers are the main power source for oxidation ditches. An impeller radius has an important influence on the flow field structure in an oxidation ditch channel. The effect of the size of impeller radius on the structure of flow fields in an oxidation ditch was studied by using the two-phase gas-liquid model and the 3D Realizable k-e turbulence model. The PISO( Pressure-Implicit with Splitting of Operators) algorithm was used for the solution of velocity and pressure. The VOF( Volume Of Fluid) method was used to simulate water free surface. The concept of optimal radius ratio was introduced to analyze the simulation results. When the ratio of the impeller radius to the diameter of the oxidation ditch channel bend,r / d was 0. 218,the percentage of the fluid with velocity greater than 0. 3m / s to the entire fluid was the greatest,and that the length of the backflow region in the straight channel was the shortest. The ratio of impeller radius to the diameter of an oxidation ditch channel bend,r / d with a value of 0. 218,is called the optimal impeller radius ratio.
叶轮是氧化沟的主要动力源。叶轮半径对氧化沟通道内的流场结构有重要影响。采用气液两相模型和三维可实现k-e湍流模型，研究了叶轮半径大小对氧化沟内流场结构的影响。采用PISO(pressure - implicit with Splitting算子)算法求解速度和压力。采用流体体积法(Volume Of Fluid)模拟水的自由表面。引入最优半径比的概念，对仿真结果进行分析。当叶轮半径与氧化沟通道弯道直径之比为0时，r / d = 0。218，流速大于0的流体百分比。3m / s流速最大，直流道内回流区长度最短。叶轮半径与氧化沟沟道弯道直径之比r / d，取值为0。218、称为最佳叶轮半径比。
{"title":"Numerical Simulation of the Optimal Impeller Radius in An Oxidation Ditch","authors":"Yuling Liu, Bing Lü, Wenli Wei","doi":"10.3969/J.ISSN.1005-0930.2014.01.009","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2014.01.009","url":null,"abstract":"Impellers are the main power source for oxidation ditches. An impeller radius has an important influence on the flow field structure in an oxidation ditch channel. The effect of the size of impeller radius on the structure of flow fields in an oxidation ditch was studied by using the two-phase gas-liquid model and the 3D Realizable k-e turbulence model. The PISO( Pressure-Implicit with Splitting of Operators) algorithm was used for the solution of velocity and pressure. The VOF( Volume Of Fluid) method was used to simulate water free surface. The concept of optimal radius ratio was introduced to analyze the simulation results. When the ratio of the impeller radius to the diameter of the oxidation ditch channel bend,r / d was 0. 218,the percentage of the fluid with velocity greater than 0. 3m / s to the entire fluid was the greatest,and that the length of the backflow region in the straight channel was the shortest. The ratio of impeller radius to the diameter of an oxidation ditch channel bend,r / d with a value of 0. 218,is called the optimal impeller radius ratio.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70175093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-06-01DOI: 10.3969/J.ISSN.1005-0930.2012.03.008
Yin-jun Zhou, Li Chen, Shan Chen, Lei Jiang
The river bed surface fractal dimension(BSD)is put forward to measure river bed.Based on improvements in some aspects of Surface area-Scale Method,such as,estimation of surface area,boundary treatment and judgment of non-scale range,the calculation method of surface fractal dimension with irregular boundary was obtained,and the new method had good applicability on the bed surface fractal dimension calculation.The fractal characteristics of river bed surface morphology were discussed by combination with river-pattern,river regime,river process and changes of BSD.The results showed that BSD could change with river process,the more severe bed form undulates,the greater BSD was.The BSD could reflect complexity of bed form quantitatively,which could be used to study some related problems,such as analysis of river regime,distinction of river pattern,calculation of river resistance and so on.
{"title":"Quantity method of river bed surface form based on fractal theory","authors":"Yin-jun Zhou, Li Chen, Shan Chen, Lei Jiang","doi":"10.3969/J.ISSN.1005-0930.2012.03.008","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2012.03.008","url":null,"abstract":"The river bed surface fractal dimension(BSD)is put forward to measure river bed.Based on improvements in some aspects of Surface area-Scale Method,such as,estimation of surface area,boundary treatment and judgment of non-scale range,the calculation method of surface fractal dimension with irregular boundary was obtained,and the new method had good applicability on the bed surface fractal dimension calculation.The fractal characteristics of river bed surface morphology were discussed by combination with river-pattern,river regime,river process and changes of BSD.The results showed that BSD could change with river process,the more severe bed form undulates,the greater BSD was.The BSD could reflect complexity of bed form quantitatively,which could be used to study some related problems,such as analysis of river regime,distinction of river pattern,calculation of river resistance and so on.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70175027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-02-01DOI: 10.3969/J.ISSN.1005-0930.2012.01.016
X. Jiang, L. Blunt, L. Brown, Hong-yu Zhang
The significance of three dimensional(3D)surface metrology in engineering is firstly discussed,based on the recognition of the limitation of two dimensional(2D)surface metrology that most researchers in academia and industry have been utilizing.Then a detailed description of modern 3D surface metrology instruments,i.e.contacting stylus,non-contacting optical interferometer and atomic force microscope,is given.Subsequently,the development of 3D surface characterization technique which concentrates mainly on 3D surface parameters,especially the famous "Birmingham 14 Parameters",is introduced.Finally,a typical case study on the application of 3D surface metrology in characterization of femoral stem wear is proposed to further advocate the popularization of 3D surface metrology in biomedical engineering,with the result showing that matt femoral stems wear against bone cement by an abrasive mechanism whilst fretting wear dominates the wear mechanism between polished femoral stems and bone cement.
{"title":"The Application of 3D Surface Metrology in Characterization of Femoral Stem Wear","authors":"X. Jiang, L. Blunt, L. Brown, Hong-yu Zhang","doi":"10.3969/J.ISSN.1005-0930.2012.01.016","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2012.01.016","url":null,"abstract":"The significance of three dimensional(3D)surface metrology in engineering is firstly discussed,based on the recognition of the limitation of two dimensional(2D)surface metrology that most researchers in academia and industry have been utilizing.Then a detailed description of modern 3D surface metrology instruments,i.e.contacting stylus,non-contacting optical interferometer and atomic force microscope,is given.Subsequently,the development of 3D surface characterization technique which concentrates mainly on 3D surface parameters,especially the famous \"Birmingham 14 Parameters\",is introduced.Finally,a typical case study on the application of 3D surface metrology in characterization of femoral stem wear is proposed to further advocate the popularization of 3D surface metrology in biomedical engineering,with the result showing that matt femoral stems wear against bone cement by an abrasive mechanism whilst fretting wear dominates the wear mechanism between polished femoral stems and bone cement.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70175313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-01-01DOI: 10.3969/J.ISSN.1005-0930.2012.02.006
Haiyun Shi, X. Fu, Y. Wang, G. Wang, T. Gong
{"title":"Estimating Potential Evaporation in Lhasa River Basin: Improved Dalton Model","authors":"Haiyun Shi, X. Fu, Y. Wang, G. Wang, T. Gong","doi":"10.3969/J.ISSN.1005-0930.2012.02.006","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2012.02.006","url":null,"abstract":"","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70174915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-10-01DOI: 10.3969/J.ISSN.1005-0930.2011.05.005
Jingzhou Lu, S. Sim, B. Jin, B. Spencer
This paper presents the vibration test of a simply supported plywood plate using ISM400 wireless smart sensor developed by the Illinois Structural Health Monitoring Project(ISHMP).Decentralized data aggregation(DDA)as well as centralized data collection(CDC)was used for data acquisition and processing.Then a time domain algorithms integrating natural excitation technique(NExT)and eigensystem realization algorithm(ERA),was applied to identify modal parameters of the plate and the identification result was compared with the finite element result.The modal parameters(i.e.natural frequency and mode shape)identified from experimental data using DDA is not only in accordance with that using CDC,but also in accordance with the numerical simulation result,which shows that the wireless smart sensor networks(WSSN)based on DDA is reasonable and effective.Compared with conventional centralized processing technique,the unique features offered by distributed WSSN,including high integration and electrical energy saving,make deployment of a dense array of sensors on large civil structures both feasible and economical.
{"title":"Structural modal identification based on distributed wireless smart sensor networks","authors":"Jingzhou Lu, S. Sim, B. Jin, B. Spencer","doi":"10.3969/J.ISSN.1005-0930.2011.05.005","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2011.05.005","url":null,"abstract":"This paper presents the vibration test of a simply supported plywood plate using ISM400 wireless smart sensor developed by the Illinois Structural Health Monitoring Project(ISHMP).Decentralized data aggregation(DDA)as well as centralized data collection(CDC)was used for data acquisition and processing.Then a time domain algorithms integrating natural excitation technique(NExT)and eigensystem realization algorithm(ERA),was applied to identify modal parameters of the plate and the identification result was compared with the finite element result.The modal parameters(i.e.natural frequency and mode shape)identified from experimental data using DDA is not only in accordance with that using CDC,but also in accordance with the numerical simulation result,which shows that the wireless smart sensor networks(WSSN)based on DDA is reasonable and effective.Compared with conventional centralized processing technique,the unique features offered by distributed WSSN,including high integration and electrical energy saving,make deployment of a dense array of sensors on large civil structures both feasible and economical.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70174542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-02-01DOI: 10.4028/www.scientific.net/AMR.199-200.1391
Dan Zhang, Shoushui Wei, Guo Lei Wang, C. Wei
A new ultrasonic peristaltic micro-fluid driving model was presented on the principle of ultrasonic traveling wave and volume displacing mechanism. First, driving principle of the model was introduced and finite element model was developed. Second, the transient dynamics analysis was performed to observe the chambers traveling and the fluid flowing. What’s more, harmonic analysis was done to get its amplitude-frequency response characteristics. Third,the coupling modes filled with fluid was performed to prove its drivng effect. This can provide a guidance for furture fluid structure analysis to get better performance and efficiency.
{"title":"Dynamics Research of Ultrasonic Peristaltic Micro-Fluid Driving Model","authors":"Dan Zhang, Shoushui Wei, Guo Lei Wang, C. Wei","doi":"10.4028/www.scientific.net/AMR.199-200.1391","DOIUrl":"https://doi.org/10.4028/www.scientific.net/AMR.199-200.1391","url":null,"abstract":"A new ultrasonic peristaltic micro-fluid driving model was presented on the principle of ultrasonic traveling wave and volume displacing mechanism. First, driving principle of the model was introduced and finite element model was developed. Second, the transient dynamics analysis was performed to observe the chambers traveling and the fluid flowing. What’s more, harmonic analysis was done to get its amplitude-frequency response characteristics. Third,the coupling modes filled with fluid was performed to prove its drivng effect. This can provide a guidance for furture fluid structure analysis to get better performance and efficiency.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4028/www.scientific.net/AMR.199-200.1391","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70642159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.3969/J.ISSN.1005-0930.2011.S1.003
Haiyun Shi, X. Fu, H. Wang, T. Gong
Water loss and soil erosion is serious in regions with high mountains and deep valleys such as the Hengduan Mountains region in eastern Tibet.It is crucial to investigate the characteristics and predict the tendency of water loss and soil erosion in such regions.This study adopted the digital watershed model developed at Tsinghua University to model soil erosion in the Qamdo region,Tibet,as a case study.Scenario analysis was performed to explore the impacts of changes in precipitation,land use,and vegetation coverage due to climate change and human activities.It is shown that soil erosion will be significantly enhanced by increased precipitation;the decrease in precipitation or increase in vegetation coverage ratio will reduce soil erosion.Planting trees and growing grass could effectively control soil erosion,but the feasibility of "conversion from farmland to forest and/or grassland" remains for future research.
{"title":"Modeling and Prediction of Water Loss and Soil Erosion for High-relief Mountainous Region: Case Study of Qamdo Region","authors":"Haiyun Shi, X. Fu, H. Wang, T. Gong","doi":"10.3969/J.ISSN.1005-0930.2011.S1.003","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2011.S1.003","url":null,"abstract":"Water loss and soil erosion is serious in regions with high mountains and deep valleys such as the Hengduan Mountains region in eastern Tibet.It is crucial to investigate the characteristics and predict the tendency of water loss and soil erosion in such regions.This study adopted the digital watershed model developed at Tsinghua University to model soil erosion in the Qamdo region,Tibet,as a case study.Scenario analysis was performed to explore the impacts of changes in precipitation,land use,and vegetation coverage due to climate change and human activities.It is shown that soil erosion will be significantly enhanced by increased precipitation;the decrease in precipitation or increase in vegetation coverage ratio will reduce soil erosion.Planting trees and growing grass could effectively control soil erosion,but the feasibility of \"conversion from farmland to forest and/or grassland\" remains for future research.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70174877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.3969/J.ISSN.1005-0930.2011.05.017
Jia Wu, Z. Cai, Zhechao Gao
Hematite,as a typical alteration mineral,plays a very important role in uranium exploration.Traditional modeling method usually treats every feature with the same probability.However,this does not hold in many real world applications,which may also cause the reduction of the accuracy of prediction.We propose a novel method called WKNN-SMOreg,which weights the features according to the association of their attributes on the hybrid of KNN and SMOreg.In this way,the error caused by the features with lower association will be reduced.The experiment results show,compared with KNN,SVM and KNN-SMOreg,the novel method improves the accuracy of prediction,and reduces the negative impact of the noise,which also implies that the new method can be well applied in the prediction of alteration minerals.
{"title":"Improved KNN-SMOreg algorithm and its application in predicting the amount of hematite from uranium","authors":"Jia Wu, Z. Cai, Zhechao Gao","doi":"10.3969/J.ISSN.1005-0930.2011.05.017","DOIUrl":"https://doi.org/10.3969/J.ISSN.1005-0930.2011.05.017","url":null,"abstract":"Hematite,as a typical alteration mineral,plays a very important role in uranium exploration.Traditional modeling method usually treats every feature with the same probability.However,this does not hold in many real world applications,which may also cause the reduction of the accuracy of prediction.We propose a novel method called WKNN-SMOreg,which weights the features according to the association of their attributes on the hybrid of KNN and SMOreg.In this way,the error caused by the features with lower association will be reduced.The experiment results show,compared with KNN,SVM and KNN-SMOreg,the novel method improves the accuracy of prediction,and reduces the negative impact of the noise,which also implies that the new method can be well applied in the prediction of alteration minerals.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70174740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human skull and duramater has the viscoelasticity.Using the viscoelastic option of the ANSYS finite element program,this study analyzed the deformation of human skull and duramater with the changing ICP (Intracranial Pressure).The strains calculations were performed of three-dimensional finite element model of hollow shell simulating cranial cavity in this paper.The viscoelastic models for human skull and duramater were constructed.The result shows that the viscous strains account for about 40% and the elastic strains about 60% of total strains of human skull and duramater.
{"title":"Finite Element Analysis on Strains of Viscoelastic Human Skull and Duramater","authors":"X. Yue","doi":"10.5772/10009","DOIUrl":"https://doi.org/10.5772/10009","url":null,"abstract":"Human skull and duramater has the viscoelasticity.Using the viscoelastic option of the ANSYS finite element program,this study analyzed the deformation of human skull and duramater with the changing ICP (Intracranial Pressure).The strains calculations were performed of three-dimensional finite element model of hollow shell simulating cranial cavity in this paper.The viscoelastic models for human skull and duramater were constructed.The result shows that the viscous strains account for about 40% and the elastic strains about 60% of total strains of human skull and duramater.","PeriodicalId":34897,"journal":{"name":"应用基础与工程科学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5772/10009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70915922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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