Korea-Australia Rheology Journal最新文献_第8页

Application of numerical differentiation to conversion of linear viscoelastic functions 数值微分在线性粘弹性函数转换中的应用

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-05-31 DOI: 10.1007/s13367-022-00030-1

Junghaeng Lee, Kwang Soo Cho

引用次数: 0

Correction to: State-of-the-art recent developments of large magnetorheological (MR) dampers: a review 修正:大型磁流变(MR)阻尼器的最新发展:综述

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-05-17 DOI: 10.1007/s13367-022-00032-z

Mohammad Abdul Aziz, Sakib Muhammad Mohtasim, Rubel Ahammed

引用次数: 0

Impact of increased particle concentration on magnetorheological fluid properties and their damping performance 颗粒浓度增加对磁流变液性能及其阻尼性能的影响

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-05-11 DOI: 10.1007/s13367-022-00029-8

Ashok Kumar Kariganaur, Hemantha Kumar, M. Arun

{"title":"Impact of increased particle concentration on magnetorheological fluid properties and their damping performance","authors":"Ashok Kumar Kariganaur, Hemantha Kumar, M. Arun","doi":"10.1007/s13367-022-00029-8","DOIUrl":"10.1007/s13367-022-00029-8","url":null,"abstract":"<div><p>Magnetorheological (MR) fluid properties are essential in analyzing the performance of any MR fluid system. The fluid properties are dependent on shape, size, and magnetic saturation of the magnetic particles. Preliminary characteristics with SEM, particle size analysis (PSA), and vibration sample magnetometer (VSM) on carbonyl iron particles were performed to verify the particle’s feasibility to synthesize the MR fluid in a laboratory. Synthesis and characterization of MR fluids with particle concentrations (PC) of 10% (PC<sub>10</sub>), 15% (PC<sub>15</sub>), 20% (PC<sub>20</sub>), 30% (PC<sub>30</sub>), and 35% (PC<sub>35</sub>) by volume are carried out. To show the inherent nonlinearity of the MR fluid, Herschel–Bulkley model is used. The relationship between sedimentation velocity, yield stress, and thermal conductivity is established as a function of particle concentration with experimental uncertainty of 6.15, 5, and 8.96%, respectively. Functional testing of PC<sub>15</sub> and PC<sub>30</sub> was carried out on an MR damper fabricated on dimensions obtained from the literature for the required size. The results indicate that damping force is 42% more in PC<sub>30</sub> than PC<sub>15</sub> at higher loading parameters. Finally, the saturation magnetization of the MR fluid depends not only on applied current but also on loading parameters when operating in the system.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 3","pages":"223 - 238"},"PeriodicalIF":1.3,"publicationDate":"2022-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4469600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Simulated orientational morphology from the measured transient rheology of polycarbonate–carbon fiber composites 通过测量聚碳酸酯-碳纤维复合材料的瞬态流变模拟取向形态

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-05-09 DOI: 10.1007/s13367-022-00031-0

Javad Rahmannezhad, Hyeon Dam Jeong, Seung Chan Ryu, Heon Sang Lee

{"title":"Simulated orientational morphology from the measured transient rheology of polycarbonate–carbon fiber composites","authors":"Javad Rahmannezhad, Hyeon Dam Jeong, Seung Chan Ryu, Heon Sang Lee","doi":"10.1007/s13367-022-00031-0","DOIUrl":"10.1007/s13367-022-00031-0","url":null,"abstract":"<div><p>We prepared carbon fiber (CF) reinforced polycarbonates (CFR-PC) by co-rotating twin screw extruder and injection molding. We simulated the orientational morphology of CFR-PC by inverse calculation from the measured transient stress curve using 8 mm disk rotational rheometer. The shear stress evolution was expressed by a function of the Fredholm integral of the first kind; total stress was expressed by a linear combination contributed from a stress at each orientation state. We employed an extended White–Metzner model with Dinh–Armstrong flow-fiber coupling term as a constitutive equation for the evaluation of stress at each orientation state. The probability density of each orientation state was determined by the Tikhonov regularization method from the measured stress overshoot. Finally, the orientation distribution functions (ODFs) of CFR-PC were determined by maximum entropy method from the determined probability density of orientation state. For the CFR-PCs, the simulated morphology by the ODF was well consistent with the morphology obtained by optical microscopy.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 3","pages":"197 - 210"},"PeriodicalIF":1.3,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4394092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

State-of-the-art recent developments of large magnetorheological (MR) dampers: a review 大型磁流变(MR)阻尼器的最新发展:综述

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-04-19 DOI: 10.1007/s13367-022-00021-2

Mohammad Abdul Aziz, Sakib Muhammad Mohtasim, Rubel Ahammed

引用次数: 12

The effects of SKO on Assam crude oil SKO对阿萨姆邦原油的影响

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-03-29 DOI: 10.1007/s13367-022-00028-9

Bondita Robidas, Subrata Borgohain Gogoi

{"title":"The effects of SKO on Assam crude oil","authors":"Bondita Robidas, Subrata Borgohain Gogoi","doi":"10.1007/s13367-022-00028-9","DOIUrl":"10.1007/s13367-022-00028-9","url":null,"abstract":"<div><p>The energy demand for crude oil (CO) has increased globally which encourages the growth in the petroleum industry worldwide. When CO is transported through a pipeline over long distances, due to the change in environmental circumstances, the flow behavior of CO also changes. To improve the flowability of CO through the pipeline, a better understanding of the rheological behavior of CO is very important. In this paper, several experiments were conducted to improve the flowability of CO through pipeline transportation. Dilution of CO with its products like Superior Kerosene Oil (SKO) was selected as it improves the CO flowability through the pipeline and is economically affordable. In this study, the effect of SKO on <sup>o</sup>API gravity, Pour Point, Gel Point, Viscosity Gravity Constant, and rheological parameters were studied for the CO of Upper Assam Basin, Assam. SKO was mixed with CO in different ratios to examine the effect of SKO on it. The results obtained showed that with the addition of SKO, <sup>o</sup>API increases, the minimum limit of attaining paraffinic nature of CO samples can be determined, heavier CO may not always have high Pour Point and Gel Point. The variation in yield stress of CO with SKO was also observed. Hershel-Buckley Model (HBM) was used and from the three parameters of HBM, the shear-thinning or shear thickening behavior of CO was determined. Therefore, this paper attempts to study the flow behavior of CO and also to identify the % of SKO required for improving their flowability through the pipeline.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 2","pages":"167 - 180"},"PeriodicalIF":1.3,"publicationDate":"2022-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5124812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of water-soluble polymers dissolved in an aqueous secondary fluid on the rheological properties of “capillary” suspensions 水溶性聚合物溶解在二次水中对“毛细”悬浮液流变性能的影响

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-03-21 DOI: 10.1007/s13367-022-00027-w

Jeewon Yang, Jieun Kim, Joohyung Lee

{"title":"Effects of water-soluble polymers dissolved in an aqueous secondary fluid on the rheological properties of “capillary” suspensions","authors":"Jeewon Yang, Jieun Kim, Joohyung Lee","doi":"10.1007/s13367-022-00027-w","DOIUrl":"10.1007/s13367-022-00027-w","url":null,"abstract":"<div><p>Ternary colloidal or “capillary” suspensions comprising bulk and secondary fluids (<i>S</i>) and particles have attracted considerable attention in recent years. The addition of a suitable <i>S</i> can readily initiate the transition of a fluid-like pre-mixture into a gel-like capillary suspension. However, the precise control of rheological properties of such suspensions in the gel state is still challenging. In this study, we investigated the effects of the addition of various water-soluble polymers in an aqueous <i>S</i> on the rheological properties of the capillary suspensions. Results suggest that all the investigated systems maintained the gel state. Cellulose-type polymers with high molecular weights increased the sample strength, which was attributed to the gelation and reduced rupture of interparticle capillary bridges. In contrast, the non-cellulose-type polymers decreased the sample strength, which may be attributed to the interparticle repulsion and/or decrease in the capillary force. We believe this study will aid the design of various industrial complex fluids that often contain multiple immiscible fluids and polymeric additives.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 2","pages":"159 - 166"},"PeriodicalIF":1.3,"publicationDate":"2022-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4827976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A study on the practical application of the integrated ANN system for manufacturing the target quality of the injection molded product 综合人工神经网络系统在注塑产品目标质量制造中的实际应用研究

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-03-17 DOI: 10.1007/s13367-022-00026-x

Dongcheol Yang, Junhan Lee, Kyunghwan Yoon, Jongsun Kim

{"title":"A study on the practical application of the integrated ANN system for manufacturing the target quality of the injection molded product","authors":"Dongcheol Yang, Junhan Lee, Kyunghwan Yoon, Jongsun Kim","doi":"10.1007/s13367-022-00026-x","DOIUrl":"10.1007/s13367-022-00026-x","url":null,"abstract":"<div><p>The quality of the products manufactured by injection molding is greatly influenced by the process variables of the injection molding machine used during manufacturing. It is very difficult to determine the process variables considering the stochastic nature of the manufacturing process, because the process variable complexly affects the quality of the injection molded product. In the present study, we used an artificial neural network (ANN)-based method to determine injection molding process variables to manufacture products of desired quality, as ANNs are known to be highly accurate in analyzing non-linear problems. To train the ANN model, a systematic plan was developed using a combination of orthogonal and random sampling methods to represent various and robust patterns with a small number of experiments. According to the plan, injection molding experiments were performed to generate data, which were separated into training, validation, and test sets to optimize the ANN model parameters and test its predicting performance. Multiple-input single-output (MISO) and multiple-input multiple-output (MIMO) models were developed to predict 8 process variables to manufacture a product with specific dimensions and provide user reference information (mass and pressure at the end of fill). The predicted process variables were applied to an injection molding machine to verify the predicted accuracy of the ANN system. Finally, it was confirmed that the determination of process variables using the ANN method meets the tolerances required in general industry practice.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 2","pages":"147 - 157"},"PeriodicalIF":1.3,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13367-022-00026-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4689994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of non-magnetic carbon nanotubes on the performance and stability of magnetorheological fluids containing FeCo-deposited carbon nanotubes 非磁性碳纳米管对含feco沉积碳纳米管的磁流变液性能和稳定性的影响

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-03-16 DOI: 10.1007/s13367-022-00023-0

Sangwon Cho, Hoyeon Kim, Sehyun Kim, Yongsok Seo

{"title":"Effects of non-magnetic carbon nanotubes on the performance and stability of magnetorheological fluids containing FeCo-deposited carbon nanotubes","authors":"Sangwon Cho, Hoyeon Kim, Sehyun Kim, Yongsok Seo","doi":"10.1007/s13367-022-00023-0","DOIUrl":"10.1007/s13367-022-00023-0","url":null,"abstract":"<div><p>Magnetorheological (MR) properties of the carbon nanotube (CNT)–FeCo nanocomposite particle suspension were investigated to find a high-performance MR fluid with great stability. The composites were fabricated by chemical deposition of FeCo on the surface of amine functionalized CNTs. The strong magnetic polarization of the FeCo moiety led to strong MR performance of the nanocomposite particle suspension. The MR fluid exhibits high yield stress value, 4 times greater than that of the suspension including Fe<sub>3</sub>O<sub>4</sub>-deposited CNT at a magnetic field strength of 86 kA/m. A three-dimensional network-like structure formed by the non-magnetic CNTs in the MR suspension does not contribute to the additional yield stress. The low density and the surface roughness of the CNTs resulted in far better long-term stability for the CNT–FeCo nanocomposite suspension than for the MR suspension of hierarchically structured Fe<sub>3</sub>O<sub>4</sub> suspension with a similar density. The effect of the three-dimensional network-like structures by the CNTs on the MR performance depends upon the interaction strength between the magnetic moiety on the CNTs.</p></div>","PeriodicalId":683,"journal":{"name":"Korea-Australia Rheology Journal","volume":"34 2","pages":"137 - 146"},"PeriodicalIF":1.3,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13367-022-00023-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4653394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Distinctive rheological properties of Pickering emulsions: from their origin to the applications 皮克林乳剂的独特流变性能:从起源到应用

IF 1.3 4区工程技术

Korea-Australia Rheology Journal Pub Date : 2022-03-08 DOI: 10.1007/s13367-022-00018-x

EunSuk Lee, DongGwon Kim, KyuHan Kim

引用次数: 4