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- It is assumed that the uncertain parameter may deviate from its crisp value only slightly thus the perturbation expansion at the crisp value can be applied. 文中也简要讨论了改进解与现有的模糊有限元方程组各种解之间的关系。
- Firstly, a state feedback controller is designed to quadratically stabilize the system satisfying the prescribed disturbance attenuation and uncertain parameter limit. 首先确定使系统二次容许且具有一定干扰抑制度和不确定参数限制度的状态反馈控制器;
- Adaptive control theorem can overcome uncertain parameters of systems by using parameter adjuster, but it can t reject the influence of external disturbance. 适应控制藉由参数调整器来自动调整控制参数,虽能克服系统含有参数不确定性的困扰,但无法排除外来干扰所带来的不良影响。
- By representing the uncertain parameters as interval numbers, the governed equa tio ns of the structural system are obtained by means of the finite element method. 将结构系统中的不确定性参数用区间数来表示,用有限元法建立系统的控制方程。
- Second, with the posterior probability weighting of the uncertain parameters, an augmented system is obtained for the uncertainty model. 其次,将此不确定性模型通过不确定参数的后验概率加权,得到其增广系统。
- A new method named interval analysis method, Which solves the natural frequencies of composite laminate with uncertain parameters, was presented. 摘要提出了求解具有不确定参数的复合材料板的振动固有频率区间分析法。
- The simulation results show that satisfactory robustness and accuracy can be acquired with bounded uncertain parameters and random disturbances existing in the system. 仿真结果表明,在系统存在有界的不确定参数和随机干扰时,可以获得满意的鲁棒性和精确性。
- By using the convex model theory, the vibration control problem of structures with uncertain parameters is discussed, which is approximated by a deterministic one. 用凸模型理论讨论了参数不确定系统的振动控制问题,把不确定系统的振动控制转化为确定性问题来处理。
- An output tracking controller is designed to a one-DOF link robot system by adaptive back-stepping approach, the character of the robot system is that there are uncertain parameters. 摘要针对具有参数不确定性的单机械臂系统,采用自适应反演法设计出跟踪控制器,并且给出了不确定参数的自适应律。
- It seems uncertain why he lost the election. 他落选的原因似乎并不清楚。
- He tells us in no uncertain term not to come again. 他直截了当地告诉我们不要再来了。
- While in the practical application, most systems have uncertain parameters and uncertain perturbation from the outside, and if we still use the traditional methods, it will make the identification abortive. 然而实际应用中系统大多存在参数不确定性和外界不确定干扰,如果还是采用传统的识别方法,就会导致识别失败,因此要寻求能够处理系统不确定时的鲁棒识别方法。
- The MQROGA can also optimize the network resources such as bandwidth,delay,packet loss met-rics and can converge to the optimal or near-optimal solution within few iterations,even for the networks environment with uncertain parameters. MQROGA在网络环境及不确定参数下能够优化网络资源,如带宽、延迟、分组丢失率等得到一个最优解和次优解。
- I own to being uncertain about that. 我坦白承认对那件事还没有把握。
- Abstract To solve the uncertain control problem of system, the uncertain parameters were described by the interval model, and the uncertain control problem was approximated by a deterministic. 摘要 为了解决控制系统的不确定性问题,将不确定参数用区间表示,使不确定问题转化为确定性问题。
- Let us eliminate all uncertain on thought. 让我们从思想上消除一切疑惑。
- Then the effect of these uncertain parameters of compressive bar on compressive bar stability response based on interval model is discussed,and the non-probabilistic reliability index is presented. 基于区间模型讨论了压杆稳定分析中的不确定性对其稳定响应的影响,提出了压杆稳定的非概率可靠性度量指标。
- I'm uncertain about how to get there. 我不确切知道怎样才能到达那里。
- The uncertain weather delayed our departure. 天气变换莫测,延误了我们启程。
- The classical control method is usually hard to ensure the thermal power tracking accuracy,because the nuclear reactor system is a complex nonlinear system with uncertain parameters and disturbances. 核电站的动力堆控制系统是一个带不确定参数及干扰的复杂非线性系统,采用常规的古典控制很难保证其热功率精确跟踪汽轮机负荷的变化。