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JSME international journal : bulletin of the JSME最新文献

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Structure of a Flat Flame Stabilized by an Air Swirl 涡流稳定平焰的结构
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1988
M. Shioji, M. Hata, M. Ikegami
{"title":"Structure of a Flat Flame Stabilized by an Air Swirl","authors":"M. Shioji, M. Hata, M. Ikegami","doi":"10.1299/JSME1987.30.1988","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1988","url":null,"abstract":"By injecting fuel into the duct of a co-axial burner and imparting a strong swirl on the outer air, two modes of flame, turbulent flame and flat flame, appear on the burner under some conditions. The conditions under which a flat flame mode, which features a commpact and a high-density combustion, was formed were studied by measuring temperature, fuel mass concentration, and gas velocity at the burner exit. The flat flame mode was found to be formed when the centripetal force of the high-temperature combustion gases toward the burner rim exceeded that toward the burner axis.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"253 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120972793","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}
引用次数: 0
The Fatigue Life and Crack Through Thickness Behavior of a Surface-Cracked Plate : For the Case of Tensile Load 表面裂纹板的疲劳寿命和裂纹穿透厚度行为:在拉伸载荷情况下
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1898
K. Ando, Shinpei Fujibayashi, K. Nam, Masayuki Takahashi, N. Ogura
{"title":"The Fatigue Life and Crack Through Thickness Behavior of a Surface-Cracked Plate : For the Case of Tensile Load","authors":"K. Ando, Shinpei Fujibayashi, K. Nam, Masayuki Takahashi, N. Ogura","doi":"10.1299/JSME1987.30.1898","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1898","url":null,"abstract":"","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134544198","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}
引用次数: 11
A Fracture Modes Research of Boron Aluminum Composite Materials by Acoustic Emission(AE) 硼铝复合材料断裂模式的声发射研究
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/KIKAIA.53.697
Y. Sofue, A. Ogawa, 靖之 祖父江, 小河 昭紀
{"title":"A Fracture Modes Research of Boron Aluminum Composite Materials by Acoustic Emission(AE)","authors":"Y. Sofue, A. Ogawa, 靖之 祖父江, 小河 昭紀","doi":"10.1299/KIKAIA.53.697","DOIUrl":"https://doi.org/10.1299/KIKAIA.53.697","url":null,"abstract":"Acoustic Emission Characteristics were investigated for various failure modes (such as fibre breakage, matrix crazing and delamination) of Boron reinforced Alminum Composite materials. Tensile Tests were conducted on four types of specimens (unidirectional, 0°/90°ply, boron fibre and shear lag test pieces). The results show that the A.E. Characteristics (count rate, amplitude distribution and location) differ with the failure mode. The A.E. amplitude was above 90 dB for the fibre breakage of the unidirectional ply test piece but below 90 dB for the transverse one of cross ply, which fractured at a low level load, while the shear lag test pieces produce and acoustic emission amplitude in the range of 40～60dB under delamination fracture mode.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128116391","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}
引用次数: 0
Heat Transfer of Two Circular Cylinders Fixed on a Plane Wall Aligned in a Cross-Flow of Air 空气横流中固定在平面壁上的两个圆柱的传热
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1943
S. Aiba
{"title":"Heat Transfer of Two Circular Cylinders Fixed on a Plane Wall Aligned in a Cross-Flow of Air","authors":"S. Aiba","doi":"10.1299/JSME1987.30.1943","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1943","url":null,"abstract":"The heat tranfer of two circular cylinders fixed on a plane wall has been investigated in a cross-flow of air. The turbulent boundary layer thickness along the wall with no cylinder present was about 21 mm. The test cylinder diameter (d) was 15-15.3 mm, and the pitch (p) between the two cylinders was 16.5-66 mm (p/d=1.1-4.4). The Reynolds number (Re) based on the undisturbed uniform flow velocity above the wall ranged from 9 000-40 000. In this paper, variations in the characteristic features of the local and mean Nusselt numbers are discussed in relation to the value p/d and Re, with the pressure distributions around each cylinder and the features of the flow field investigated.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126378092","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}
引用次数: 1
Crack Propagation and Crack Branching in Delayed Failure Under Mixed-Mode I-II Loading I-II混合模式加载下延迟破坏中的裂纹扩展和裂纹分支
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1913
Xiaolie Chen, K. Nakasa
{"title":"Crack Propagation and Crack Branching in Delayed Failure Under Mixed-Mode I-II Loading","authors":"Xiaolie Chen, K. Nakasa","doi":"10.1299/JSME1987.30.1913","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1913","url":null,"abstract":"Three-point and four-point bending tests were carried out in water on the high strength Ni-Cr-Mo steel quenched and tempered at 653 K in order to investigate the effect of mixed-mode I-II loading on the crack propagation and crack branching in delayed failure. The crack propagation velocity before crack branching was almost constant and independent of the ratio of mode II to mode I stress intensity factors when it was within 0.3. Both the crack-branching angle and the angle between the direction of the main crack and the bisector of the crack-branching angle increased with increases in the ratio of mode II to mode I stress intensity factors. The above results were explained by a criterion which was introduced by combining the hydrostatic tensile stress and the hydrogen concentration at a crack tip.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126960609","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}
引用次数: 1
Heat Transfer of a Liquid-Solid Contact in a Subcooled Pool Boiling System : Transition-Type Boiling Regime and Minute Bubble Emission Boiling Regime 过冷池沸腾系统中液固接触的传热:过渡型沸腾状态和微小气泡发射沸腾状态
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1957
S. Inada, Y. Miyasaka, Masakazu Sakumoto
{"title":"Heat Transfer of a Liquid-Solid Contact in a Subcooled Pool Boiling System : Transition-Type Boiling Regime and Minute Bubble Emission Boiling Regime","authors":"S. Inada, Y. Miyasaka, Masakazu Sakumoto","doi":"10.1299/JSME1987.30.1957","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1957","url":null,"abstract":"This report describes liquid-solid contact behavior in the subcooled pool transition-type boiling regime and the minute bubble emission boiling regime, detected by a void probe that uses a series-resonance circuit. This probe can approach the heated surface within two to three micrometers. The liquid-solid contact state discussed in this report means the nucleate boiling state caused by liquid invasion or Leidenfrost state caused by liquid rush onto the dry part on the heated surface. The dried area on the heated surface was estimated on the basis of the void signal, and the relation between the dried area on the heated surface and the measured heat flux was clarified by introducing a nucleate boiling model.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121462489","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}
引用次数: 5
Relation Between Cyclic Creep and Conventional Creep on Pure Copper 纯铜循环蠕变与常规蠕变的关系
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/KIKAIA.53.772
H. Ishikawa, M. Murayama
{"title":"Relation Between Cyclic Creep and Conventional Creep on Pure Copper","authors":"H. Ishikawa, M. Murayama","doi":"10.1299/KIKAIA.53.772","DOIUrl":"https://doi.org/10.1299/KIKAIA.53.772","url":null,"abstract":"The behaviour of a pure copper subject to conventional creep and cyclic creep under imposed load is examined at room temperature, 200°C, 300°C, and 400°C to show the relation between these two kinds of phenomena. Plots of observed strain, not against the number of cycles, but against time are available for the direct comparison between cyclic creep and creep. The plastic strain, of which the instantaneous strain consisted together with the elastic strain, has considerable effect on the succeeding mechanisms of both creep and cyclic creep. At a high temperature of 400°C, strain accumulation due to creep is much more than that due to cyclic creep, while at room temperature cyclic creep has the superiority.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126013273","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}
引用次数: 0
Study of vaporization of a single droplet impinging on a heated ceramic surface. 单液滴撞击加热陶瓷表面汽化的研究。
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/KIKAIB.53.1338
T. Takano, K. Kobayasi
{"title":"Study of vaporization of a single droplet impinging on a heated ceramic surface.","authors":"T. Takano, K. Kobayasi","doi":"10.1299/KIKAIB.53.1338","DOIUrl":"https://doi.org/10.1299/KIKAIB.53.1338","url":null,"abstract":"The lifetime curves of a single droplet impinging on heated surfaces of ceramics and stainless steel were investigated. The experiments were carried out while concentrating mainly on the temperature region in which the time for vaporization could be shortened. We observed and examined thoroughly the behavior of the droplet, taking photographs with a 16 mm high-speed camera and recording on videotapes. For materials such as ceramics having low thermal conductivity and a characteristic surface, the vaporization modes were different from those on stainless steel or other metal surfaces. The significant difference between them was in the existence of the wide temperature range yielding minimum vaporization times and short lifetimes. The ceramic surface facilitates rapid vaporization of a droplet over a wide temperature range.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127714697","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}
引用次数: 2
Heat Transfer of a Liquid-Solid Contact in a Subcooled Pool Boiling System : The Second Burnout Regime 过冷池沸腾系统液固接触的传热:第二次燃尽状态
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1965
S. Inada, Y. Miyasaka, K. Sakamoto
{"title":"Heat Transfer of a Liquid-Solid Contact in a Subcooled Pool Boiling System : The Second Burnout Regime","authors":"S. Inada, Y. Miyasaka, K. Sakamoto","doi":"10.1299/JSME1987.30.1965","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1965","url":null,"abstract":"","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127374398","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}
引用次数: 1
Numerical Analysis of Radiative Heat Transfer from Three Dimensional Bodies of Arbitrary Configurations 任意构型三维物体辐射传热的数值分析
JSME international journal : bulletin of the JSME Pub Date : 1987-12-16 DOI: 10.1299/JSME1987.30.1982
S. Maruyama, T. Aihara
{"title":"Numerical Analysis of Radiative Heat Transfer from Three Dimensional Bodies of Arbitrary Configurations","authors":"S. Maruyama, T. Aihara","doi":"10.1299/JSME1987.30.1982","DOIUrl":"https://doi.org/10.1299/JSME1987.30.1982","url":null,"abstract":"A numerical calculation method has been presented for predicting radiative heat transfer from three-dimensional isothermal black bodies of arbitrary configurations. We consider the body to be composed of numerous arbitrary polygons, which can be generated by computer graphics of CAD ; and the effective exchange area of the threedimensional body is introduced for the numerical analysis. The present numerical solutions for bodies of simple configurations show good accordance with the existing analytical solutions. Radiative exchange between two arbitrary bodies can be calculated by using the effective exchange areas. As a calculation example, the effective exchange area of an automobile crank shaft model composed of 181 polygons was demonstrated. The numerical solutions converge with a relatively small number of graphic elements.","PeriodicalId":286527,"journal":{"name":"JSME international journal : bulletin of the JSME","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123724704","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}
引用次数: 10
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