期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
金属基复合材料凝固过程计算机模拟(Ⅱ) 被引量:1
1
作者 刘政 龚平 《南方冶金学院学报》 2000年第1期45-50,共6页
基于先前所做工作及渗流理论 ,建立了纤维增强金属基复合材料凝固过程中流动场的数值方程 ,研究和讨论了相应的算法 。
关键词 金属基复合材料 凝固 渗流 滚动场 计算机模拟
下载PDF
245/70R16轮胎的有限元分析 被引量:11
2
作者 王军 李梁 +1 位作者 孙林 沙昌新 《轮胎工业》 CAS 2016年第9期520-528,共9页
以Abaqus为平台,采用有限元法对245/70R16轮胎进行分析,研究负荷、外倾角和侧偏角对轮胎整体静力学与动力学性能、温度场与滚动阻力场分布的影响。结果表明:随着负荷的增大,轮胎整体的变形和接地面积增大,接地性能变差,肩部与胎圈部位... 以Abaqus为平台,采用有限元法对245/70R16轮胎进行分析,研究负荷、外倾角和侧偏角对轮胎整体静力学与动力学性能、温度场与滚动阻力场分布的影响。结果表明:随着负荷的增大,轮胎整体的变形和接地面积增大,接地性能变差,肩部与胎圈部位的应变能密度增大,轮胎的横向刚度略有减小,纵向刚度和径向刚度略有增大,而旋转刚度明显增大,肩部和胎圈最高点的温度升高;随着外倾角的增大,轮胎的滚动温度场与滚动阻力场分布趋向于不对称,滚动阻力和滚动阻力系数均增大。 展开更多
关键词 轮胎 有限元分析 侧偏 侧倾 滚动温度 滚动阻力
下载PDF
Choreographic Motifs in Nigerian Music Videos: The Examples of Olori Oko by Infinity and Roll It by P. Square
3
作者 Sola Fosudo Yeside Dosumu 《Journal of Literature and Art Studies》 2012年第10期944-950,共7页
One of the most intellectually challenging and perhaps rewarding engagements in any creative endeavour, be it written literature or performance, is decrypting the metaphorical construct imbued in such a work, within t... One of the most intellectually challenging and perhaps rewarding engagements in any creative endeavour, be it written literature or performance, is decrypting the metaphorical construct imbued in such a work, within the confines of the intentions of the writer or performer. Beyond coded speech, dance and choreography are works of art which make use of symbols to communicate man's thought, experience, and emotions. These symbols are conveyed basically through movement and they are forms of artistic expression to which all men, across climes, can respond, be it in a live performance or recorded video film. More than ever before, the music video film has taken a great place of prominence in the entertainment circles the world over, and musical choreography has become a major tool, used by singers, musicians, and music producers in these video films to enhance their creative output and make their productions more appealing both for economic and aesthetic purposes. This paper examines the motifs of dance and choreography in two Nigerian music videos, namely, Olori Oko (2006) by a Gospel group called Infinity and Roll It (2007) by a hip-hop group named P. Sqanre. The paper investigates the themes of the music, the concepts of the dances, and the styles of choreography in both works. The paper concludes that though both works belong to different genres, they are each successful in their own rights and have both contributed in elevating the standards in the practice of dance and choreography in Nigerian music video film. 展开更多
关键词 CHOREOGRAPHY DANCE MOTIFS production video film
下载PDF
湿滑道面飞机轮胎临界滑水速度计算方法比较 被引量:5
4
作者 蔡靖 李岳 宗一鸣 《航空学报》 EI CAS CSCD 北大核心 2017年第7期236-247,共12页
以美国国家航空航天局(NASA)临界滑水速度计算公式为基础,基于耦合欧拉-拉格朗日(CEL)算法建立动流场冲击原地转动轮胎分析模型,并由NASA公式及试验数据验证了模型的正确性及NASA公式在重轴载高胎压范围的适用性。进而考虑实际道面积水... 以美国国家航空航天局(NASA)临界滑水速度计算公式为基础,基于耦合欧拉-拉格朗日(CEL)算法建立动流场冲击原地转动轮胎分析模型,并由NASA公式及试验数据验证了模型的正确性及NASA公式在重轴载高胎压范围的适用性。进而考虑实际道面积水状态,建立滚动轮胎冲击静流场模型,探讨实际积水状态对临界滑水速度的影响。通过两类模型对比分析得出:两类模型的轮胎-水膜相互作用机理不同,相同速度和胎压下,后者在轮胎前缘形成的动水压强峰值明显高于前者,表明滚动轮胎冲击静流场模型中轮胎受到动水压强抬升作用更为显著,且相同速度条件下,滚动轮胎冲击静流场分析模型计算的竖向支撑力和临界滑水速度始终低于动流场冲击滚动轮胎的结果,表明该模型计算结果偏于安全,更适用于飞机高速滑行中轮胎-水膜相互作用分析。据此,提出了基于道面积水状态的临界滑水速度计算公式。 展开更多
关键词 临界滑水速度 动流冲击滚动轮胎 滚动轮胎冲击静流 耦合欧拉-拉格朗日(CEL) 竖向支撑力
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部