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    题名 作者 年代 出处 被引量
1基于刚柔耦合模型的泵车臂架动力学仿真与优化显示文摘为使混凝土泵车臂架系统的计算机仿真模型更好地体现实际情况,根据机器人运动学理论和拉格朗日方程,通过递推形式确定了混凝土泵车柔性臂架系统的动力学方程,并运用计算机联合仿真技术对混凝土泵车臂架系统进行柔性仿真,同时优化了臂架系统上的驱动力,结果显示不断改变铰点位置能明显降低变幅机构中油缸的最大受力数值.仿真结果表明,柔性臂架模型更符合实际情况,为混凝土泵车臂架改进设计和机器人化提供了理论依据.王玮 李红 骆群 周明华 李新松 2015扬州大学学报(自然科学版)2015,18,1:5
2Linearity analysis of closed-loop capacitive accelerometer due to distance mismatch between plates and the influence of compensation capacitor array显示文摘This paper presents mathematical formulae showing that the distance mismatch for an uncentered proof mass in an accelerator sensor does not influence the linearity of the closed-loop accelerometer as a whole.This asymmetry in sensors only introduces an output voltage offset in the readout integrated circuit.Numerical simulation using Matlab/Simulink confirms the mathematical conclusion.The linear response after compensation with a conventional capacitor array is also simulated and analyzed.Results show that there is a loss in linearity.Similar results hold not only for the continuous-time architecture,but also for a time-divided architecture.A readout integrated circuit with a time-divided architecture is designed and fabricated using a 0.35μm HV CMOS process.An accelerometer composed of a microelectromechanical system sensor with severe built-in distance mismatch and the designed readout integrated circuit is tested.Test results show that the nonlinearity of such accelerometer is within 0.3%.HUANG JingQing ZHAO Meng ZHANG TingTing CHEN ZhongJian HONG LiChen WU Feng ZHANG YaCong LU WenGao GAO ChengChen HAO YiLong 2014Science China(Information Sciences)2014,57,6:2
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