查询词典 stochastic dynamic programming

Many investigations show that randomicity of structures'parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures'mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

Further, applying the stochastic control theory and differential game, we discuss the dynamic pricing strategy in competitive market, get the optimum solution, and compare the revenue in competitive market with the revenue in monopolistic market.

进一步应用随机控制理论，建立了竞争市场下的动态定价博弈模型，提出了两种竞争策略，比较了这两种竞争策略和垄断市场下的收入。

Did you do the dynamic stochastic general equilibrium model?""

你做过动态随机一般均衡模型试验吗？""

Pick with the methodsuggested by this thesis,engineering problems of stochastic dynamic structuralanalysis can be efficaciously solved.

采用本文提出的方法可以有效地解决工程中的结构动力随机分析问题。

It is of importance to capture the extreme value distribution of dynamic stochastic response of structures for reliability evaluation of engineering structures.

1引言 在工程实践中，结构的参数或激励往往具有很强的随机性，因而导致结构动力响应是一个随机过程，这使得有效地把握结构的动力反应特别是非线性动力反应和结构动力可靠度迄今为止仍是相当困难的课题t'，'〕。

Based on stochastic finite element theory and first order second moment approach, the structural system dynamic reliability analysis methods are studied.

最后开发出适用于大型结构系统极限强度与静强度可靠性分析的程序系统，并由实际工程算例验证了算法的可行性与程序的可靠性。

The luminescence power of semiconductor laser diode is tested after the radiator element of laser diode is made and the drive circuit is designed. Then, chaos mathematic model is introduced to produce deterministic class stochastic signal and C langrage program, which is based on the hardware circuit design of MSP430, is designed and on-line debugged to implement the dynamic stimulation effect and avoid the body adaptability with the duty cycle of chaos sequence. The duty cycle is adjusted and controlled to accomplish the reinforcing and reducing in moxibustion. At last, Average power of laser diode is tested under the conditions of different duty cycles and the waveforms are collected by applying virtual instrument.

在半导体激光器散热装置的特别制作及工作驱动电路的设计基础上，完成半导体激光器发光功率的测试，然后引入混沌数学模型方法来产生确定性的类随机信号，在 MSP430 单片机硬件电路设计的基础上，应用单片机 C语言进行程序设计并在线调试，实现传统灸法的动态刺激效果，采用混沌序列占空比信号消除人体适应性，调整和控制输出占空比的改变以达到灸疗的补泻手法的实现，最后对不同控制占空比情况下激光器输出的平均功率进行测试，完成工作波形的采集。

In this dissertation, the fire schemes of weapon system are studied, and the stochastic dynamic weapon-target assignment method based on Markov decision process, and taken target threat in objective function is established.

论文对武器系统的射击方案进行了分析研究，同时提出了把目标的威胁程度记入指标函数的基于Morkov决策过程的随机动态火力目标分配方法。

Owing to the complexity of CIMS' missions,the reliability modeling should adapt the production processes accurately.Conventional reliability model method can not reflect the time dynamic behavior of CIMS,so the multitask reliability model based on generalized stochastic Petri nets is established for a CIMS manufacturing shop with multiple missions and the process times of the machines with exponential distributions.Furthermore,analysis of GSPN model based on behavior expression and moment generating function is presented,then can compute the transfer functions.Finally,the multitask reliability can be easily obtained without the reachability graph of Petri nets,which measure can reflect the operating performance of the whole multitask CIMS more intuitively.

CIMS生产的复杂性要求其可靠性模型可以精确地反映生产过程，由于传统的可靠性建模方法无法兼顾CIMS的时间动态特性，所以针对一个复杂的有多个加工任务的CIMS制造单元，由于其机器加工工件的时间均为指数分布，则采用广义随机Petri网进行多任务可靠性建模，在此基础上基于Petri网行为表达式，将矩母函数思想引入其中，不必生成可达标识图就可通过计算模型的传递函数，进而得到整个系统的多任务可靠度，该可靠性指标可以更直观地反映具有多种加工任务的整个CIMS的运行性能。

The influence of stochastic perturbation of system parameters on nonlinear dynamic system was discussed.

以齿轮系统为例，对系统参数随机扰动下非线性系统动态性能进行了分析。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。