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Lokavarapu Bhaskara Rao, Chellapilla Kameswara Rao
《机械工程前沿(英文)》 2013年 第8卷 第3期 页码 291-297 doi: 10.1007/s11465-013-0255-9
This work presents the existence of buckling mode switching with respect to the radius of concentric rigid ring support. The buckling mode may not be axisymmetric as previously assumed. In general, the plate may buckle in an axisymmetric mode but when the radius of the ring support becomes small, the plate may buckle in an asymmetric mode. The optimum radius of the concentric rigid ring support for maximum buckling load is also determined. Introducing internal rigid ring support, when placed at an optimal position increases the elastic buckling load capacity by 149.39 percent. The numerical results obtained are in good agreement with the previously published data.
关键词: buckling circular plate elastically restrained edge rigid ring support mode switching
Frequencies of circular plate with concentric ring and elastic edge support
null
《机械工程前沿(英文)》 2014年 第9卷 第2期 页码 168-176 doi: 10.1007/s11465-014-0299-5
Exact solutions for the flexural vibrations of circular plates having elastic edge conditions along with rigid concentric ring support have been presented in this paper. Values of frequency parameter for the considered circular plate are computed for different sets of values of elastic rotational and translation restraints and the radius of internal rigid ring support. The results for the first three modes of plate vibrations are computed and are presented in tabular form. The effects of rotational and linear restraints and the radius of the rigid ring support on the vibration behavior of circular plates are studied over a wide range of non-dimensional parametric values. The values of the exact frequency parameter presented in this paper for varying values of restraint parameters and the radius of the rigid ring support can better serve in design and as benchmark solutions to validate the numerical methods obtained by using other methods of solution.
关键词: circular plate frequency elastic edge rigid ring mode switching
时彧,肖友刚,雷先明
《中国工程科学》 2006年 第8卷 第7期 页码 54-57
建立了非连续接触下筒体-滚圈接触压力的计算模型,得出了滚圈弯矩及弯曲应力计算公式。应用名义应力法和局部应力应变法,建立了滚圈疲劳寿命预测模型。通过实例分析,得出了如下结论:通过调窑,将滚圈的最大支承载荷控制在2500kN以内,能显著提高滚圈的疲劳寿命;在传统设计中,将滚圈支承角定为30°不合理;存在一个最佳滚圈支承角,此时滚圈疲劳寿命最大。
Nicholas KEAGE, Christopher MAIOLO, Rebecca PIEROTTI, Xing MA
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 335-343 doi: 10.1007/s11709-011-0121-y
关键词: compressive buckling thin steel skins unilateral contact rigid constraints
Finite element modeling of environmental effects on rigid pavement deformation
Sunghwan KIM,Halil CEYLAN,Kasthurirangan GOPALAKRISHNAN
《结构与土木工程前沿(英文)》 2014年 第8卷 第2期 页码 101-114 doi: 10.1007/s11709-014-0254-x
关键词: jointed plain concrete pavements (JPCP) curling and warping sensitivity analyses rigid pavement analysis and design finite element analysis (FEA)
Modeling of semi-rigid beam-to-column steel joints under extreme loading
C FANG, B A IZZUDDIN, A Y ELGHAZOULI, D A NETHERCOT
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 245-263 doi: 10.1007/s11709-013-0215-9
关键词: semi-rigid joint component method ductility elevated temperature
Phenolic rigid organic filler/isotactic polypropylene composites. III. Impact resistance property
Heming LIN, Dongming QI, Jian HAN, Zhiqi CAI, Minghua WU
《化学科学与工程前沿(英文)》 2009年 第3卷 第2期 页码 176-181 doi: 10.1007/s11705-009-0203-8
Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI
《能源前沿(英文)》 2014年 第8卷 第1期 页码 90-100 doi: 10.1007/s11708-013-0286-2
关键词: comsol multiphysics EMTP-RV ferrite ring gas insulated substations (GIS) transient over-voltage insulation coordination
罗一新,吴波
《中国工程科学》 2004年 第6卷 第9期 页码 56-59
单向离合器是一种常见的机械传动部件,其外环应力计算尚无理想的方法。文章以五滚柱式单向离合器为研究对象,根据外环的特点,采用有限元分析方法,分析了影响其计算精度的各种因素,计算出其外环的应力,并且将计算结果与曲梁计算法进行了比较。研究表明,有限元分析方法对于外环类零件的应力计算确是一种理想的方法。
Structural optimization of typical rigid links in a parallel kinematic machine
Xinjun LIU, Zhidong LI, Xiang CHEN
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 344-353 doi: 10.1007/s11465-011-0227-x
The motion dynamics and accuracy of parallel kinematic machines largely depend on the weights and rigidity of typical rigid links. Therefore, these parts should be designed in such a way that they are light but rigid. This work employs the techniques of topology and size optimization to design two typical rigid links of a parallel kinematic machine (PKM) and subsequently obtains applicable structures for them. The calculation models are established, and a new algorithm called the Guide-Weight method is introduced to solve topology optimization problems. The commercial software Ansys is used to perform size optimization.
关键词: topology optimization size optimization parallel kinematic machine (PKM)
Dongming QI, Xiaoli ZHAO, Zhijie CHEN, Peng HUANG, Jun CAO
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 395-402 doi: 10.1007/s11705-012-1269-2
关键词: dispersion rigid organic filler isotactic polypropylene mixing
L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY
《能源前沿(英文)》 2012年 第6卷 第1期 页码 47-56 doi: 10.1007/s11708-011-0159-5
关键词: artificial intelligence power distribution control state estimation
Study on rigid-flexible coupling dynamics of hub-plate system
ZHAO Feiyun, XIE Yongcheng, ZHANG Ming, HE Yinbiao
《能源前沿(英文)》 2007年 第1卷 第2期 页码 181-188 doi: 10.1007/s11708-007-0023-9
关键词: discretization erroneous Furthermore Different Conservation
Guochang LI, Hongping YU, Chen FANG
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 296-303 doi: 10.1007/s11709-013-0217-7
关键词: rectangular tubular columns T-stub semi-rigid nonlinear finite element analysis moment-rotation curves
Phenolic rigid organic filler/isotactic polypropylene composites. II. Tensile properties
QI Dongming, SHAO Jianzhong, WU Minghua, NITTA Kohhei
《化学科学与工程前沿(英文)》 2008年 第2卷 第4期 页码 396-401 doi: 10.1007/s11705-008-0077-1
关键词: maximal uniaxial tensile unfilled excellent tensile influence
标题 作者 时间 类型 操作
Fundamental buckling of circular plates with elastically restrained edges and resting on concentric rigidring support
Lokavarapu Bhaskara Rao, Chellapilla Kameswara Rao
期刊论文
numerical simulation on compressive buckling behavior of thin steel skins in unilateral contact with rigid
Nicholas KEAGE, Christopher MAIOLO, Rebecca PIEROTTI, Xing MA
期刊论文
Finite element modeling of environmental effects on rigid pavement deformation
Sunghwan KIM,Halil CEYLAN,Kasthurirangan GOPALAKRISHNAN
期刊论文
Modeling of semi-rigid beam-to-column steel joints under extreme loading
C FANG, B A IZZUDDIN, A Y ELGHAZOULI, D A NETHERCOT
期刊论文
Phenolic rigid organic filler/isotactic polypropylene composites. III. Impact resistance property
Heming LIN, Dongming QI, Jian HAN, Zhiqi CAI, Minghua WU
期刊论文
A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO
Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI
期刊论文
Structural optimization of typical rigid links in a parallel kinematic machine
Xinjun LIU, Zhidong LI, Xiang CHEN
期刊论文
Dispersion of a novel phenolic rigid organic filler in isotactic polypropylene matrix by solution-mixing
Dongming QI, Xiaoli ZHAO, Zhijie CHEN, Peng HUANG, Jun CAO
期刊论文
Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution
L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY
期刊论文
Study on rigid-flexible coupling dynamics of hub-plate system
ZHAO Feiyun, XIE Yongcheng, ZHANG Ming, HE Yinbiao
期刊论文
Performance study on T-stub connected semi-rigid joint between rectangular tubular columns and H-shaped
Guochang LI, Hongping YU, Chen FANG
期刊论文