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aero-optics 1

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calculate 1

capacity polytope 1

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horizontal preframe 1

multi-DOF manipulator 1

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A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2, Pages 109-119 doi: 10.1007/s11465-012-0323-6

Abstract: In this paper, the method of Linear Programming and a geometric method are proposed to calculate working

Keywords： working capacity multi-DOF manipulator capacity polytope excavating mechanism

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An Engineering Method to Calculate Transmitting Effect of Aero-optics for Hypersonic Interceptor

Yin Xingliang

Strategic Study of CAE 2006, Volume 8, Issue 11, Pages 74-79

Abstract:

Transmitting effects of aero-optics is very important to optical imaging probing system of interceptor, as it may cause displacement, jitter and blurring of image to receive for the system. The optic transmitting characteristics is analyzed when target ray goes though turbulence flow. The engineering model for optical transmitting characteristics of flow is built up and empirical model for optical imaging system induced by aero-optic transmitting effects is described. The displacement, jitter and blurring are simulated. The numerical simulation results suggest that transmitting effect of aero-optics has powerful influence on the imaging probing system, which is related to flight parameters, imaging system parameters and integration periods of imaging probing system, etc.

Keywords： aerodynamics turbulent flows optics aero-optics transmitting effect

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The technology of the figure of test assembling when buildingthe steel box of Xihoumen suspension big bridge

Xu Liang ,Wang Huiping,Zhang Shengli,Qian Yexiang

Strategic Study of CAE 2010, Volume 12, Issue 7, Pages 43-46

Abstract:

Horizontal preframe method was adopted when steel stiffening girders of Xihoumen Bridge were fabricated, i.e. the steel box girders were pre-assembled in horizontal direction. To insure the vertical line figure of girder segments is right, relevant parameters should be calculated and stimulated first according to design data, then every part of the steel box should be adjusted in preframe process, and finally the linear accuracy should be checked.

Keywords： horizontal preframe vertical line figure calculate adjust check