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Elastic analysis of heterogeneous thick-walled spherical pressure vessels with parabolic varying properties

Keyhan KARAMI, Majid ABEDI, Mohammad ZAMANI NEJAD, Mohammad Hassan LOTFIAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 433-438 doi: 10.1007/s11465-012-0336-1

Abstract:

On the basis of plane elasticity theory (PET), the displacement and stress components in a thick-walledspherical pressure vessels made of heterogeneous materials subjected to internal and external pressure

Keywords： thick-walled spherical vessels     heterogeneous materials     FGM     FEM     parabolic varying properties    

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Demonstration project of safe and efficient mining operations in extra-thick coal seam

Jinhui WANG

Frontiers of Engineering Management 2017, Volume 4, Issue 1,   Pages 110-110 doi: 10.15302/J-FEM-2016063

Abstract:
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Fixturing technology and system for thin-walled parts machining: a review

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0711-5

Abstract: During the overall processing of thin-walled parts (TWPs), the guaranteed capability of the machining

Keywords： thin-walled part (TWP)     fixture     machining     fixture categories     fixture function    

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicFirst, the space coordinate relationship of the spherical micro actuator and a dynamic model are setwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onFinally, the characteristics of the spherical micro actuator influenced by the mass of the metal sphereThe experimental results validate the back rotation vibration model of the spherical micro actuator.

Keywords： spherical     micro-gripper     friction coefficient     dynamic     frequency    

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Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 762-780 doi: 10.1007/s11709-022-0847-8

Abstract: The stress state of the built-in corridor in core rock-fill dam on thick overburden is extremely complexThe purpose of this paper was to investigate the effect of thick overburden on the stress and deformation

Keywords： thick overburden     built-in corridor     stress     deformation     causes for damage     concrete damaged plasticity    

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Position-varying surface roughness prediction method considering compensated acceleration in milling of thin-walled

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 855-867 doi: 10.1007/s11465-021-0649-z

Abstract: Machined surface roughness will affect parts’ service performance. Thus, predicting it in the machining is important to avoid rejects. Surface roughness will be affected by system position dependent vibration even under constant parameter with certain toolpath processing in the finishing. Aiming at surface roughness prediction in the machining process, this paper proposes a position-varying surface roughness prediction method based on compensated acceleration by using regression analysis. To reduce the stochastic error of measuring the machined surface profile height, the surface area is repeatedly measured three times, and Pauta criterion is adopted to eliminate abnormal points. The actual vibration state at any processing position is obtained through the single-point monitoring acceleration compensation model. Seven acceleration features are extracted, and valley, which has the highest R-square proving the effectiveness of the filtering features, is selected as the input of the prediction model by mutual information coefficients. Finally, by comparing the measured and predicted surface roughness curves, they have the same trends, with the average error of 16.28% and the minimum error of 0.16%. Moreover, the prediction curve matches and agrees well with the actual surface state, which verifies the accuracy and reliability of the model.

Keywords： surface roughness prediction     compensated acceleration     milling     thin-walled workpiece    

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Endostatin specifically targets both tumor blood vessels and lymphatic vessels

Wei Zhuo, Yang Chen, Xiaomin Song, Yongzhang Luo

Frontiers of Medicine 2011, Volume 5, Issue 4,   Pages 336-340 doi: 10.1007/s11684-011-0163-5

Abstract: Endostatin, a 20 kDa C-terminal fragment of collagen XVIII, was first identified as a potent angiogenic inhibitor. The anti-angiogenic function of endostatin has been well documented during the past decade. Recently, several studies demonstrated that endostatin also inhibits tumor lymphangiogenesis and lymphatic metastasis. However, the exact mechanism that endostatin executes its anti-angiogenic and anti-lymphangiogenic functions remains elusive. In the current mini-review, we briefly summarize recent novel findings, including the functions of endostatin targeting not only angiogenesis but also lymphangiogenesis, and the underlying mechanism by which endostatin internalization regulates its biological functions.

Keywords： endostatin     angiogenesis     lymphangiogenesis     nystatin     internalization     tumor    

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An analytical method for calculating torsional constants for arbitrary complicated thin-walled cross-sections

DU Baisong, GE Yaojun, ZHOU Zheng

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 293-297 doi: 10.1007/s11709-007-0038-7

Abstract: this paper, an analytical method is proposed for calculating torsional constants for complicated thin-walledFinally, a complicated thin-walled cross-section is given as a valid numerical example to verify the

Keywords： homogeneous     complicated thin-walled     numerical example     advantage     torsional function    

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Adsorption of toluene, ethylbenzene and xylene isomers on multi-walled carbon nanotubes oxidized by different

Fei YU, Jie MA, Yanqing WU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 320-329 doi: 10.1007/s11783-011-0340-4

Abstract: Multi-walled carbon nanotubes (MWCNTs) were fabricated and oxidized by different concentrations of sodium

Keywords： adsorption     toluene     ethylbenzene and xylene isomers (TEX)     multi-walled carbon nanotube     surface oxidation    

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Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 485-492 doi: 10.1007/s11705-019-1831-2

Abstract: plasma chemical vapor deposition (CVD) technique was developed for improving the growth yield of single-walled

Keywords： single-walled carbon nanotubes     chirality-controlled synthesis     pulse plasma chemical vapor deposition    

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Vibration analysis of multi-walled carbon nanotubes embedded in elastic medium

Pattabhi R. BUDARAPU,Sudhir Sastry YB,Brahmanandam JAVVAJI,D. Roy MAHAPATRA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 151-159 doi: 10.1007/s11709-014-0247-9

Abstract: We propose a method to estimate the natural frequencies of the multi-walled carbon nanotubes (MWCNTs)

Keywords： natural frequencies     multi-walled carbon nanotubes (MWCNTS)     elastic medium    

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Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 329-333 doi: 10.1007/s11709-007-0043-x

Abstract: softening materials, such as concrete or rock, was derived, and the elastic and plastic limit loads of a thick-walled
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Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 698-710 doi: 10.1007/s11465-021-0646-2

Abstract: seven-degree-of-freedom (7-DOF) redundant anthropomorphic hydraulically actuated manipulator with a novel roll–pitch–yaw sphericalA hybrid series–parallel mechanism is presented to achieve the spherical wrist design, which consistsDesigned as a 1R PRRR-1S PU mechanism (“R”, “P”, “S”, and “U” denote revolute, prismatic, spherical,The 7-DOF manipulator is then designed, and its third joint axis goes through the spherical center to

Keywords： hydraulic manipulator     inverse kinematic     redundant design     spherical wrist    

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Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 45-51 doi: 10.1007/s11705-009-0308-0

Abstract: Both cubic and spherical CoPt nanoparticles were made using cobalt carbonyl and platinum 2,4-pentanedionate

Keywords： spherical     2     4-pentanedionate     adamantanecarboxylic     acetylacetonate     electrocatalytic    

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A study on bearing characteristic and failure mechanism of thin-walled structure of a prefabricated subway

Lianjin TAO; Cheng SHI; Peng DING; Sicheng LI; Shang WU; Yan BAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 359-377 doi: 10.1007/s11709-022-0816-2

Abstract: Finally, the development law of damages to a thin-walled prefabricated component and the failure evolutionThe existing thin-walled components design had significant advantages in weight reduction, concrete temperature

Keywords： prefabricated subway station     thin-walled components     finite element analysis     bearing characteristic    

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Title Author Date Type Operation

Elastic analysis of heterogeneous thick-walled spherical pressure vessels with parabolic varying properties

Keyhan KARAMI, Majid ABEDI, Mohammad ZAMANI NEJAD, Mohammad Hassan LOTFIAN

Journal Article

Demonstration project of safe and efficient mining operations in extra-thick coal seam

Jinhui WANG

Journal Article

Fixturing technology and system for thin-walled parts machining: a review

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Journal Article

Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

Journal Article

Position-varying surface roughness prediction method considering compensated acceleration in milling of thin-walled

Journal Article

Endostatin specifically targets both tumor blood vessels and lymphatic vessels

Wei Zhuo, Yang Chen, Xiaomin Song, Yongzhang Luo

Journal Article

An analytical method for calculating torsional constants for arbitrary complicated thin-walled cross-sections

DU Baisong, GE Yaojun, ZHOU Zheng

Journal Article

Adsorption of toluene, ethylbenzene and xylene isomers on multi-walled carbon nanotubes oxidized by different

Fei YU, Jie MA, Yanqing WU

Journal Article

Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Journal Article

Vibration analysis of multi-walled carbon nanotubes embedded in elastic medium

Pattabhi R. BUDARAPU,Sudhir Sastry YB,Brahmanandam JAVVAJI,D. Roy MAHAPATRA

Journal Article

Unified solution of limit loads of thick wall cylinder subject to external pressure considering strain

CHEN Changfu, XIAO Shujun, YANG Yu

Journal Article

Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Journal Article

Synthesis and electrocatalytic property of cubic and spherical nanoparticles of cobalt platinum alloys

Xiaowei TENG, Hong YANG,

Journal Article

A study on bearing characteristic and failure mechanism of thin-walled structure of a prefabricated subway

Lianjin TAO; Cheng SHI; Peng DING; Sicheng LI; Shang WU; Yan BAO

Journal Article