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	Modeling and Experimental Investigation of U-R Relationship of AA6061-T6 Tubes Manufactured via Free Bending Forming Process 期刊论文 OAI收割 MATERIALS, 2023, 卷号: 16, 期号: 23, 页码: 16 作者: Abd El-Aty, Ali; Cheng, Cheng; Xu, Yong; Hou, Yong; Tao, Jie \| 收藏 \| 浏览/下载：13/0 \| 提交时间：2024/01/07 3D free bending forming aluminum alloy tube U-R relation curve finite element simulation forming experiment
	A shear constitutive model and experimental demonstration considering dual void portion and solid skeleton portion of rock 期刊论文 OAI收割 ENGINEERING FRACTURE MECHANICS, 2023, 卷号: 281 作者: Xin, Jie; Jiang, Quan; Liu, Qiang; Zheng, Hong; Li, Shaojun \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2023/08/02 Shear failure Shear constitutive relation Dual -structure model Physical simulation Cemented paste backfill-rock ? Scale coefficient
	Nonlinear norm-observability and simulation of control systems 期刊论文 OAI收割 SYSTEMS & CONTROL LETTERS, 2017, 卷号: 105, 页码: 14-19 作者: Li, Rui; Hong, Yiguang; Wang, Xingyuan \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2018/07/30 Norm-observability Simulation relation Nonlinear control system Observability propagation
	Deformation twinning in nanocrystalline materials 期刊论文 OAI收割 Progress in Materials Science, 2012, 卷号: 57, 期号: 1, 页码: 1-62 作者: Zhu YT; Liao XZ; Wu XL(武晓雷) 收藏 \| 浏览/下载：65/0 \| 提交时间：2012/12/04 molecular-dynamics simulation stacking-fault energy severe plastic-deformation strain-rate sensitivity high-pressure torsion centered-cubic metals hall-petch relation grain-boundary structure nano-scale twins austenitic stainless-steels
	The effect of backlash nonlinear on resonance frequency of electric actuator transmission system (EI CONFERENCE) 会议论文 OAI收割 3rd IEEE International Conference on Advanced Computer Control, ICACC 2011, January 18, 2011 - January 20, 2011, Harbin, China Han X.; Ge M.; Bai Y.; Jia H.; Ge W. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 In order to study the effect of backlash nonlinear on resonance frequency of electric actuator transmission system then Finally in the premise of meeting the stability the dynamic equilibrium equation of transmission system with backlash is established it makes dynamic simulation analysis for the transmission system based on virtual prototype technology it establishes balanced equation of dynamics system with backlash the effect of backlash on system natural frequency and resonance frequency and the theoretical values and simulation values are compared. Theoretical analysis and simulation results show that the theoretical analysis is basically consistent with simulation results when it is zero backlash and does some theory research and dynamic analysis of backlash nonlinearity and system natural frequency and resonance frequency. First and the error of theoretical analysis and simulation results is within 10%. Therefore according to describing function to theoretically model the backlash nonlinear it can be concluded that considering the transmission system theoretical analysis of backlash nonlinearity is feasible the relation between describing function and the amount of backlash and input amplitude is analyzed and it is much closer to the actual system with instructive significance. 2011 IEEE.
	Influence of spatial temperature distribution on high accuracy interferometric metrology (EI CONFERENCE) 会议论文 OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者: Yang H.; Zhang J.; Zhang J.; Zhang J.; Yan F. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 We calculate the influence of temperature change on the refractive index of air establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer accompanied by a temperature change random function within each grid. Finally all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus to realize the high accuracy figure metrology the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.
	A method of outdoor simulation of infrared radiance of targets (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China Song J.-T.; Shen X.-H.; Zhao Y.-J. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Current research on infrared simulation often focuses mainly on infrared imaging simulation by computer and pays little attention to outdoor simulation of infrared radiation characteristics of targets. In order to simulate infrared radiance of targets outdoors in this paper we propose a new outdoor simulation method on the basis of heating the cloth by electricity. There are two major contributions in the paper. Firstly uneven distributing of temperature field of the cloth surface is considered and the long-wave thermal imager is used as a link of the temperature control system. On the basis of many experiments the expression is concluded about the relation of the temperature obtained by the lone-wave thermal imager and the temperature obtained by the temperature control system and the environmental temperature at the experimental scene. Secondly the influence of the environment at the experimental scene on the infrared radiance of the cloth surface is thought over. Thanks to two measures above simulation precision of infrared radiance is made much better. The results of many outdoor experiments demonstrate the performance of the proposed approach. 2009 SPIE.
	Application of linear CCD for position measurement (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China 作者: Fu Y.; Liu L.; Liu L. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 A method that measures relatively position relation between two vehicles fleetly and accurately that are both on a horizontal plane is proposed in the article. When manipulator rotates horizontally that of angle is less than 26 the linear CCD vidicon that is on the end of manipulator on the loading vehicle scans two point targets that are on the launching vehicle which satisfies technical requests. So the method is feasible. The research is not only significant for missile of automatic transshipment and then we can utilize spatial intersection principle and trigonometry theorem to get relatively position relationship. I.e. the coordinate parameters: x but also is valuable in theoretic research on method of measuring spatial position relationship. y z . Error analysis and the simulation on computer validate: the measurement error of length is less than 0.84mm
	New numerical scheme for simulation of hyperbolic mild-slope equation 期刊论文 OAI收割 china ocean engineering, 2001, 卷号: 15, 期号: 2, 页码: 185-194 作者: Zheng, YH; Shen, YM; Qiu, DH 收藏 \| 浏览/下载：15/0 \| 提交时间：2016/10/27 nonlinear dispersion relation hyperbolic mild-slope equation numerical simulation water waves