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Journal Article 5

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acceleration 1

and rare-scattered element minerals 1

axle 1

axle weight calculation 1

bearing 1

bridge weigh-in-motion 1

cart 1

continuous bridge 1

exploitation 1

extrusion 1

fast Fourier transform 1

handling stability 1

influence line 1

multi-axle 1

necking coefficient 1

rare earth 1

rear axle 1

rear metal 1

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New technique of precision necking for long tubes with variable wall thickness

Yongqiang GUO, Chunguo XU, Jingtao HAN, Zhengyu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 622-630 doi: 10.1007/s11465-019-0565-7

Abstract: This study analyzed the deformation law of rear axles with variable wall thickness under bidirectionalEffective processes to control the wall thickness of rear axle at different positions were also proposedA new technology of two-step heating and two-step extrusion for a 13 t rear axle was developed, qualified

Keywords： extrusion     rear axle     necking coefficient     temperature gradient    

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Multi-axle dynamic steering system of truck-howitzer

LI Yanliang, GAO Xiuhua, ZHANG Chunqiu, SUN Yubo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 44-49 doi: 10.1007/s11465-008-0002-9

Abstract: A two-degree-of-freedom (2-DOF) steering model of multi-axle vehicle was established.

Keywords： multi-axle     acceleration     relationship     smoothly     handling stability    

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Ancient road transport devices: Developments from the Bronze Age to the Roman Empire

Cesare ROSSI,Thomas G. CHONDROS,Kypros F. MILIDONIS,Sergio SAVINO,Flavio RUSSO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 12-25 doi: 10.1007/s11465-015-0358-6

Abstract:

The development of transportation systems has significantly enhanced the welfare and modernization of society. Wooden vehicles pulled by animals have been used for land transportation since the early Bronze Age. Whole-body gharries with rigid wheels pulled by oxen appeared in Crete by 2000 BC or earlier. Horses originating from the East were depicted in early Cretan seal-rings of the same period. The two-wheeled horse-drawn chariot was one of the most important inventions in history. This vehicle provided humanity its first concept of personal transport and was the key technology of war for 2000 years. Chariots of Mycenaean and Archaic Greece with light and flexible four-spoked wheels acting as spring suspensions were depicted in vase paintings. The development of this vehicle incorporated the seeds of a primitive design activity and was important for engineering. The Trojan horse since 1194 BC and the helepolis since 700 BC were the first known machines on a wheeled base transported by horses or self-powered. Ancient engineers invented bearings lubricated with fat, and Romans introduced the ancestors of ball bearings for their wagons and carts. The historic evolution of wheeled transportation systems, along with early traction, suspension, and braking systems, is presented in this paper. Analytical and numerical methods are incorporated to analyze the most conceivable loading situations of typically reconstructed wheeled transportation systems in ancient times. Traction requirements both for horse-driven machines and the power for internal motors are also analyzed. This study can serve as a basis for further development of detailed reconstruction of transportation systems in antiquity.

Keywords： transportation     wheel     spoke     cart     axle     bearing    

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A filtering-based bridge weigh-in-motion system on a continuous multi-girder bridge considering the influence lines of different lanes

Hanli WU, Hua ZHAO, Jenny LIU, Zhentao HU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1232-1246 doi: 10.1007/s11709-020-0653-0

Abstract: collected structural responses (dynamic strains) received from sensors or transducers, was used in axlecounting, detection, and axle weighing technology in this study.treated with FFT filter were far better than the original ones, the efficiency and the accuracy of axle

Keywords： bridge weigh-in-motion     continuous bridge     fast Fourier transform     influence line     axle weight calculation    

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Characteristics and Exploitation of Rare Earth,Rare Metal and Rare-Scattered Element Minerals in China

Wang Denghong, Sun Yan, Dai Hongzhang, Guo Weiming, Zhao Zhi, Zhao Ting,Li Jiankang, Wang Chenghui, Huang Fan, Yu Yang, Li Dexian

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 119-127 doi: 10.15302/J-SSCAE-2019.01.017

Abstract:

China is rich in rear earth, rear metal, and rare-scattered element (

Keywords： rare earth     rear metal     and rare-scattered element minerals     resource characteristics     exploitation    

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Title Author Date Type Operation

New technique of precision necking for long tubes with variable wall thickness

Yongqiang GUO, Chunguo XU, Jingtao HAN, Zhengyu WANG

Journal Article

Multi-axle dynamic steering system of truck-howitzer

LI Yanliang, GAO Xiuhua, ZHANG Chunqiu, SUN Yubo

Journal Article

Ancient road transport devices: Developments from the Bronze Age to the Roman Empire

Cesare ROSSI,Thomas G. CHONDROS,Kypros F. MILIDONIS,Sergio SAVINO,Flavio RUSSO

Journal Article

A filtering-based bridge weigh-in-motion system on a continuous multi-girder bridge considering the influence lines of different lanes

Hanli WU, Hua ZHAO, Jenny LIU, Zhentao HU

Journal Article

Characteristics and Exploitation of Rare Earth,Rare Metal and Rare-Scattered Element Minerals in China

Wang Denghong, Sun Yan, Dai Hongzhang, Guo Weiming, Zhao Zhi, Zhao Ting,Li Jiankang, Wang Chenghui, Huang Fan, Yu Yang, Li Dexian

Journal Article