查询词典 sliding

Aiming at a class of typical dynamic hysteretic models, a kind of sliding mode tracking controller based on dynamic sliding mode principle is proposed. A dual-phase convergent process is implemented by constructing an auxiliary sliding mode variable.

针对一种典型的动态迟滞模型，提出一种基于动态滑模原理的跟踪控制器，通过构造辅助的滑模变量来实现动态滑模控制的两阶段收敛。

Thirdly, a new type base isolation system, i. e., slide-limited friction base isolation system is presented in this paper. Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory. Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

The first one is an algorithm with terminal sliding mode equality constraint. The second is a dual-mode control scheme, which enlarge the terminal region. The sliding mode based MPC is implemented while system state is outside of terminal region, and sliding mode variable structure control designed off-line is used once system state arrives in the terminal region.

第一种方法为终端滑模等式约束非线性模型预测控制方法，首先离线设计切换函数使得滑动模态渐近稳定，然后在有限预测时域的基础上对切换函数附加一个终端等式约束；第二种方法为双模控制方案，在终端区外采用模型预测控制，使得系统状态在有限时域内到达终端区内；在终端区内部采用离线设计的滑模变结构控制，使得系统渐近稳定。

The magnitude of sliding mode switching gain is the key reason causing system chattering. Self-recurrent wavelet neural networks is used to estimate sliding mode switching gain on-line, which can reduce chattering caused by sliding mode control effectively.

滑模开关增益的大小是造成系统抖振的关键，采用自回归小波神经网络(Self-recurrent wavelet neural networks， SRWNN)在线估计滑模开关增益的大小可以有效降低滑模控制造成的抖振。

If two mutual contacts, and relatively static objects, such as forcing under only a relative sliding trend, and not a relative sliding, they face contact between the obstacles in the relative sliding of that "static friction ."

如果两个相互联系，并相对静止的物体，如强迫下只是一个相对下降的趋势，而不是一个相对滑动，他们面对面的接触之间的障碍，在相对滑动的"静摩擦力"。

According to the characteristics and construction requirements, to develop the basis of elevation from the beginning of silo slipform construction used, sliding up to 4.3 meters above sea level, the reinforced air slide 5.15 meters; Party to begin construction within the building and the warehouse floor, after the completion of sliding mode Then slide up to 26 meters warehouse roof, sliding mode to remove.

根据工程特点及工期要求，拟定筒仓从基础标高开始采用滑模施工，滑升至标高4.3米时，加固空滑到5.15米；甲方开始施工仓内建筑及库底板，完工后滑模接着滑升至仓顶26米，滑模拆除。

The key products are ZHZ Series Hydraulic Support with Connected-Sliding-Integral Roof, ZHF Series Hydraulic Support with Connected-Sliding-Divided Roof, ZF Series Hydraulic Support Falling Roof-Coal, ZY Series Shielding Hydraulic Support, and ZJH Hydraulic Support with Sliding- Divided Roof, etc.

公司主导产品为ZHZ型系列整体顶梁组合悬移液压支架、ZHF型系列分体顶梁组合悬移液压支架、ZF型系列轻型放顶煤支架、ZY型系列掩护式支架、ZJH型系列悬移顶梁液压支架等。

The rule of sliding pushing force and remnant resistant sliding force when we change physical and mechanical parameters of sliding body is studied completely at first.

首次全面分析了各物理力学参数对滑坡推力和剩余抗滑力的影响规律。

Using the above studying method and steps, firstly we study the rule of sliding pushing force and remnant resistant sliding force when we change the sliding body physical and mechanical parameters.

应用上述研究方法和步骤，首先研究了滑体参数改变对滑坡推力和剩余抗滑力的影响规律。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。