The feasibility to simulate the initial earth stress of the large underground structure by using the algorithm of dynamic relaxation and system damping in LS-DYNA is investigated.
主要研究使用LS-DYNA的动力松弛算法和系统阻尼算法相结合来求解大型地下结构初始地应力状态的可行性。
This Paper develops a two-level hierarchical algorithm for discrete event dynamic system simulation based on decomposition coordination Principle for large scale systems.
本文在大系统分解-协调原理的基础上提出了一种离散事件动态系统仿真的两级递阶算法。
Large scale static and dynamic concrete hydraulic servo triaxial testing system is designed by using computer and hydraulic servo technique.
利用计算机及液压伺服控制技术,研制了大型液压伺服混凝土静动三轴试验系统。
On account of the average current control chosen in the APFC system, a large signal dynamic BUCBB model is built and all the switching elements replaced by dependent sources.
由于变换器工作在平均电流控制的APFC系统中,本文建立了BUCBB变换器的大信号动态模型,并将BUCBB变换器中的开关元件用受控源代替。
Large range course Angle measurement system of medium-to-high accuracy was studied for the course Angle calibration of vehicle dynamic base.
研究用于飞行器等动态基座航向角校准的大范围、中高精度航向角度测量系统。
Elasto metal plastic bearing pad is key part of large hydraulic turbine thrust bearing and its performance being better or worse directly influences the dynamic quality of whole system running.
弹性金属塑料轴瓦是大型水轮发电机推力轴承的关键性部件,其性能的好坏直接影响到整个系统运行的动态品质。
A rational dynamic system construction of a large flow safety valve was designed on the basis of the specific performance in the paper.
本文以特定的性能要求为准则,拟定了较为合理的大流量安全阀动态系统结构。
And it is considered a effective approach to apply dynamic optimization management and decision with network schedule technique in complex large system project schedule.
指出在复杂大系统工程项目计划中,利用网络计划技术进行动态优化管理与决策是工程项目计划管理与决策的一种有效途径。
The discrete differential dynamic program method and the large scale system decomposed-coordinating method are adopted to solve the models.
在相同计算条件下,采用一维、二维离散微分动态规划法,以及大系统分解协调法分别进行求解。
It is introduced that a kind of large dynamic range laser pulse echo power measurement system.
介绍一种大动态范围激光回波功率线性测量系统。
The dynamic quantitative weighing system is a kind of nonlinear, large delay, time-varying system.
通动态定量称重系统是一种非线性、大滞后、时变性的系统。
Modern theories of multi-body system dynamics are used to build the dynamic models with clearance of large equipment erecting system driven by two oil cylinders side-by-side.
运用现代多体系统动力学理论,针对双液压缸并列驱动的大型装置起竖系统,建立了含间隙起竖多刚体系统的动力学模型。
In this paper, the dynamic properties of linear large scale system are studied.
本文研究线性大系统动态特性的定性分析。
The key of realizing the application in radar system shown in theories and tests is to carry out miniature optical terminal units which have low loss, low noise and large dynamic range.
理论分析和实验表明,制成低损耗、低噪声、大动态范围的小型化光端机是实现雷达系统应用的关键。
The key to the dynamic simulation is to solve the large - scale DAE system.
动态模拟实质即为求解这个大规模的DAE系统。
To allow access to the high resolution and large dynamic range in optical fiber sensor system applications, low coherence, broad band spectral sources are good choices.
使用低相干、宽带光源可以让光纤传感器系统获得高分辨率和大动态范围。
Meanwhile, the experiment result shows that the laser holography system is a powerful tool for diagnosing dynamic particle field, with high resolution and large depth of field.
试验表明脉冲激光全息系统具有很好的诊断动态颗粒场的能力,是一种适合于深入研究颗粒运动细节的有效手段。
The regeneration feedback tracking system, or called as computer aided tracking system, can very effectively track large dynamic targets with high accuracy.
再生反馈跟踪系统是对大动态目标进行精密跟踪的有效体制。
The proposed results are useful to the attitude dynamic analysis and control system design for not only the spacecraft with large rotation parts, but also the agile small satellite.
所得结果不仅适用于具有大型运动部件的航天器的姿态动力学分析及控制系统设计,也适用于灵敏小卫星的相应研究。
This method is based on the substructure method of dynamic responses, so the dynamic response calculation of a large complex structure system can be carried out via a microcomputer.
又因为本文提出的方法是基于动态子结构法,所以大型复杂结构系统的动态响应计算可望在微机上进行。
The proposed algorithm for digital imaging system ensures correct exposure to the main object of scenes with large dynamic range.
针对数码成像系统在大动态范围场景下存在的对主体曝光不足或曝光过度的问题,本文提出了一种新的自动曝光控制算法。
The object feedforward is a good method to increase the system precision and reduce the dynamic lag. This paper describes the application of object feedforward in a large precision tracking radar.
目标前馈是提高系统精度,减少动态滞后的一种很好方法,本文将叙述目标前馈在某大型精密跟踪雷达中的应用。
This paper presents the dynamic programming medol of qualitative mixture system for optimal design of the Large-medium coneyance caneyance canal engineering.
提出了大中型输配水渠道工程系统优化设计的定量定性混合系统动态规划模型。
In this paper, the specialized techniques of electron gun for large screen CPTs are discussed. The beam forming region, main lens, convergence lens system and dynamic focusing method are analyzed.
对近年来大屏幕彩色显像管电子枪专有技术进行了讨论,系统分析了电子束形成区、主透镜、会聚透镜系统及动态聚焦方式等。
Rotor bearing system is the heart of large-scale rotating machinery, as a major way to support, the dynamic problem of tilting pad journal bearing (TPJB) growing concern by the people.
转子—轴承系统是大型旋转机械的核心部件,作为主要支承方式的可倾瓦滑动轴承支承,它的动力学特性日益被人们所关注。
PDSA provides a complete toolset of on-line dynamic security assessment for large-scale power system, based on parallel simulation platform.
介绍了电力系统在线动态安全评估和预警系统(PDSA)的主要组成和功能。
In this paper a resolving method of multivariate dynamic programming model to mid and long term optimum operation for large scale hydropower system is studied.
本文研究一种混联水电站水库群中长期优化调度的多维动态规划模型的求解方法。
In this paper, an interaction balance coordination algorithm of integrated system optimization and parameter estimation for nonlinear discrete dynamic large scale system is introduced.
提出一种非线性离散动态大系统系统优化与参数估计集成的关联平衡协调算法。
By utilizing the fixed-interface modal synthesis technique, the dynamic analysis of the large rotor-bearing-foundation-plate-soil system is presented in this paper.
本文对大型汽轮发电机组-基础-土壤系统采用模态综合技术进行了动力分析。
With popularization of large dynamic range IR thermal imaging system, it is necessary to study IR-image-display terminals which suit for human visual properties.
随着大动态范围热成像器件的广泛使用,有必要研究适合人类视觉特性的红外热像终端显示系统。
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