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and -αθ/ασ-σ curves. It was found that the flow stress increased with the decrease in deformation temperature and increase in the strain rate. The power dissipation maps in the strain range of 0.1–0.6 were entirely similar with the tendency of contour lines which implied that strain had no strong effect on the dissipation maps. Nevertheless, the instability maps showed obvious strain sensitivity......
for High Power Laser Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences2. University of Chinese Academy of Sciences3. College of Materials Science and Engineering China Jiliang... for effective heat dissipation and multi emitting surface in LEDs module.关键词:......
temperatures of 300-400℃ and low strain rates of 0.001-0.01 s-1.According to dynamic material model and Prasad’s instability criterion,a maximum power dissipation of 38% and 32% occurs at 400℃/0.001 s-1 and 400......
according to the data obtained. The processing maps of 9 Cr-ODS in the strain range of 0.1–0.6 were also developed. The results show that the region with high power dissipation efficiency corresponds......
, State Key Laboratory of Traction Power, Southwest Jiaotong University2. Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest... stress and dissipation energy-per-cycle decreased as the number of cycles increased. Meanwhile, the cyclic degradation of OWSME was aggravated by increasing the stress/strain amplitude. In addition......
PMSM的哈密顿反馈耗散增益调度控制裘君,赵光宙,齐冬莲浙江大学电气工程学院摘 要:针对永磁同步电机(PMSM)伺服系统的速度控制要求,基于哈密顿反馈耗散(Hamilton feedback dissipation)控制策略提出了增益调度永磁同步电机的速度控制方法,该方法从能量平衡的观点,利用能量整形方法,给出了PMSM的速度控制器,并针对固定增益参数对于电机暂态性能控制的不足,基于系统实际值与期望稳定值之间的偏差提出了混合增益控制方法来提高控制系统的速度跟踪性能.提出的控制方法简化了系统设计过程,减少了系统控制中参数数量,在保证系统具有渐近稳定性能的同时,提高了系统的暂态响应性能.仿真和实验结果表明,应用该方法控制永磁同步电机较传统增益控制参数恒定的方法可以使系统具有更好的控制性能.关......
performance of a DLC film were investigated using a quartz crystal microbalance with dissipation(QCM-D), a ball-on-disk reciprocating tribometer, and a three-electrode electrochemical cell. The results......
parameters alters the kinetic energy dissipation and the deformation work performed at the interface,and dictates the interfacial wave amplitude and the mechanical strength of the dissimilar explosive clad.The......
of spatial metal structures. The extension is based on a new dissipation inequality at finite strains. The evolution equations are formulated in terms of the corotational rates of the logarithmic elastic......
the variation of power dissipation efficiency are constructed as a function of temperature and strain rate.The processing maps exhibit an area of discontinuous dynamic recrystallization occurring at 280–300 °C......