在一定条件下,动力扰动可简化为平面应力波。
The dynamic disturbance can be simplified as plane stress wave under certain conditions.
结构振动控制技术是结构抗震抗风及抵抗动力扰动的新技术。
Structural vibration control is a new technique for structural seismic and wind resistances.
采用数值方法分析了复杂应力条件下动力扰动对深部岩体破坏模式的影响。
The mechanical response of deep rock pillar, which is under complicated stress condition and then subjected to dynamic disturbance, is numerically simulated.
煤矿生产中存在着大量的动力扰动,常导致采矿巷道和采场围岩局部失稳,诱发冲击矿压发生。
Many dynamic disturbances often lead to local instability of roadway surrounding rock and mining workplace and result in rock burst in coal mining.
通过改变扰动应力波峰值的大小,来考察动力扰动强度的变化对承受高应力矿柱稳定性的影响。
And then the effect of disturbance intensity on the stability of highly-stressed pillars is reflected by changing the different peak value of the dynamic stress wave.
该模型对扰动频率非常敏感,扰动频率满足一定条件是动力扰动下洞室发生层裂屈曲岩爆的必要条件;
The model is sensitive to disturbance frequency which is an essential factor for rock burst occurrence, and is insensitive to disturbance amplitude.
承受高静载应力的矿柱,较小的动力扰动可能会使其发生塑性破坏而导致深部开采时的“多米诺骨牌”效应。
Especially when the pillar is endured very high static stress, even a small dynamic disturbance may lead to its plastic destroying and result in a domino effect in the deep mining.
提出当井壁孔隙压力接近临界值时,井壁处于非稳定平衡状态,在有动力扰动的情况下,井壁因失稳而坍塌。
When the stress of wellbore is close to critical loads, wellbore is in the state of instability, and when dynamic disturbance is present, wellbore will collapse because of in…
对深部矿柱在承受高静载应力时的动力扰动力学模型进行应力波传播力学响应分析,采用FLAC3D有限差分程序对深部开采圆形矿柱进行高应力下动力扰动数值计算。
By using an explicit finite difference program FLAC3D, a model of numerical calculation is established for a deep mining pillar with dynamic disturbance under high stress.
该多周期扰动力矩与转台三轴转速有关,影响转台的定位精度、位置精度和速率精度。
The multi-period disturbance torque is related to three-axis rotate speed of turntable and influences localization precision, position precision and speed precision of turntable.
以典型的航天员推离动作对飞船的扰动力矩作为控制系统仿真的输入参数,分析姿态控制系统受到扰动后的响应。
Put the disturbance moments of typical astronaut's push-off act as the input datas of the control system simulation, and analyze the response of the attitude control system after disturbed.
建立卫星姿态动力学数学模型,并分析星体所受的外部扰动力矩。
Mathematic model of satellite attitude dynamic is set up, and external disturbance torque is analyzed.
所考虑的非线性扰动力矩是角位置的周期函数,这在实践中是很常见的。
The disturbance torque dealt with is assumed to be periodic in position, which is very common in practice.
文中基于滑模控制方法提出一种改进的自适应姿态控制规律,适用于有内扰动力矩存在的航天器。
An improved adaptive control approach based on sliding-mode control is proposed in this paper for the spacecraft subjected to internal perturbation torque.
提出了一种有限维重复控制方法,以实现对有严重非线性扰动力矩的伺服机构的高精度速率控制。
A finite dimensional repetitive control method is proposed for the high precision velocity control of servomechanisms subject to significant nonlinear disturbance torque.
本文利用三轴全物理仿真气浮台作为控制对象,模拟航天器在外层空间所受扰动力矩很小的力学环境。
Mechanical environment where spacecraft disturbance torque is very small in out space is simulated making use of a three-axis full physics air-bearing table as controlled object.
提出了一种基于RBF网络扰动力矩补偿的控制技术。
RBF Neural Networks (NN) based control strategy is proposed to compensate the disturbance moment.
差分型直接积分法求解动力方程,其计算假设条件给系统增加了一个“计算扰动”效应。
The difference type direction integration is used for solving dynamic - equation, its calculation assumption causes a "calculation perturbation" effects to the system.
此外气动力或发动机扰动也会造成弹体的附加运动。
Moreover, addition movement of the airframe can result from aerodynamic or propulsion noise .
此外气动力或发动机扰动也会造成弹体的附加运动。
Moreover, addition movement of the airframe can result from aerodynamic or propulsion noise.
通过算例证明改进后的气体分子动力学交通流模型对于抑制高密度车流状况下的扰动更为有效,具有更强的稳定性。
A test case validates that the improved gas-kinetic traffic model is more effective on suppressing the perturbation, and more stable at high vehicle densities.
利用伞-弹系统动力学模型,从工程应用的角度出发,分析了阵风小扰动作用下,子弹姿态的运动特性,并以此为基础给出了末修子弹弹下点的计算模型。
The dynamics model of parachute-munition system is used to analyze the motion characters of submunition under the effect of wind gust, and the calculation model of projective point is presented.
同时采用小扰动法推导了俯仰通道和滚动通道的简化模型,为空气动力和姿控发动机推力复合控制系统进行初步设计提供了依据。
What′s more, according to the method of little disturbance, the simplified model of pitching and rolling plane is derived, so preliminarily combined control system can be designed.
通过考虑单元间的边界条件可以得到姿态动力学的解析模型,并由此可以获得外扰动和姿态角到附件弹性位移之间的传递特性。
Boundary conditions are used to assemble the global system model, and transfer properties from external disturbance or attitude to elastic deflection of appendages are obtained.
本文分析了轮式移动机器人在运行过程中由于动力学不确定性引起的力矩扰动,并提出了一种基于传感器的移动机器人控制方法。
This paper analyzes the torque disturbance of the wheeled mobile robot due to dynamic uncertainties during motion and presents a sensor based control method for the mobile robot.
研究了一类受外部扰动的离心调速器系统的动力学行为。
Dynamic behavior of centrifugal flywheel governor system subjected to external disturbance was studied.
在忽略大气扰动情况下,简化出无大气扰动情况下的动力学模型。
And in the condition of ignoring atmospheric disturbance, the dynamic model is predigested.
针对机器人动力学模型的不确定性和负载扰动,提出了一种采用神经网络的机器人迭代学习控制方法。
Aiming at dynamic model uncertainties and load disturbances of robot manipulators, an iterative learning control scheme using neural networks is presented.
建立了非平整地面扰动动力学模型及越障动态稳定性判据。
This article has also established the uneven ground perturbation dynamics model and the obstacle negotiation dynamic stability criterion.
建立了非平整地面扰动动力学模型及越障动态稳定性判据。
This article has also established the uneven ground perturbation dynamics model and the obstacle negotiation dynamic stability criterion.
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