Instability sometimes takes place in gear rotor bearing systems, and its cause interested more researchers.
失稳现象在齿轮耦合的转子-轴承系统中时有发生，失稳原因一直是人们所关心的问题。
An iterative precise integration method is proposed to calculate the transient response of rotor-bearing systems.
提出了计算转子系统瞬态响应的精细迭代积分方法。
The cause of instabilities in aerostatic bearing systems operated in a vacuum environment is studied in this paper.
本文确切地指出了在真空中静压气浮轴承系统出现不稳定的原因。
This is very helpful to choose suitable nonlinear oil film force model in the dynamic analysis for rotor-bearing systems.
这为进行转子-轴承系统的非线性动力学分析时选取恰当的油膜力模型提供了理论指导。
It provides the basis for choosing the rolling bearing's parameters reasonably and improving the lifetime of bearing systems.
为合理选择轴承参数、提高轴承系统工作寿命提供了依据。
This supply the helpful theoretical tools for nonlinear dynamic analysis and design of rotor-elliptic bearing systems in rotating machines.
为旋转机械转子-圆柱轴承系统的非线性动力学分析和设计提供了必要的理论基础。
The time domain identification of model parameters of rotor bearing systems is helpful for condition monitoring and fault diagnosis of rotating machines.
轴承-转子系统模态参数时域识别对于回转机械的状态监测与故障诊断具有重要意义。
It is shown that under the interaction between synoptic systems of the mid - and low-latitude belts, the hard rainfall bearing systems possess semi-tropical characteristic.
在中低纬系统相互作用下，导致暴雨的系统具有半热带性质。
This study is part of a growing body of evidence that northern systems are bearing the brunt of climate change, said co-author Jennifer Harden, a U. S. Geological Survey scientist.
报告的联合作者，一位来自美国地质学研究领域的科学家詹妮佛哈顿认为，有越来越多的证据表明，北部亚寒带地区的生态系统是受气候变化的影响最大，而这份报告则为这样的事实又增加了证明。
The ball bearing is widely used in aero-engines. Its mechanical properties exert important influence on the dynamic characteristics of rotor systems, especially at high speed.
滚动轴承作为航空发动机转子系统广泛采用的一种支承，其力学特性对转子系统的动力特性有重要的影响，尤其是高速下更为显著。
External elastic damping support, if designed reasonably, may obviously improve the natural or forced vibration response characteristics of bearing rotor systems.
设计参数合理的外弹性阻尼支承可以明显改善轴承-转子系统的固有特性及强迫振动响应。
The relationships between dynamic stiffness properties and PID parameters of active electrostatic bearing and rotor systems based on a stiffness compensated model are investigated.
针对补偿负刚度后的静电轴承一转子系统模型，讨论了PID控制参数与动刚度特性的关系，为根据刚度指标确定控制参数提供了理论依据。
The two systems implement the core functions of bearing, guiding and driving in very different ways.
这两种系统的核心功能、支承、导向和驱动的作用方式很不相同。
Applications: ship propellers, parts for turbines, bearing, valves, sifter, pumps, pipe systems, apparatus engineering, containers.
应用在：船用螺旋桨，涡轮机部分，承载，阀门，筛子，泵，管道系统，仪器工程以及货柜。
The coal resources are very rich in China. There are 5 coal series distributing 4 kinds of coal bearing basin controlled by two structured systems.
我国煤炭资源丰富，共有5大煤系分布在两种构造体系控制的4类含煤盆地中。
This filter can contribute to enhanced bearing life and improve reliability of PWM drive systems.
这种滤波器的使用将有助于延长轴承寿命，增强PWM驱动系统的可靠性。
With the increasing demands for higher accuracy and higher productivity of the ultra-precision equipments, ultra-precision gas bearing stage systems driven by linear motor become research hotspots.
随超精密装备加工精度和生产率的不断提高，直线气浮系统得到广泛重视和研究。
This study is of significance the optimization of the sulfur-bearing reagents leaching gold systems.
本研究对含硫试剂提金体系优化具有重要的参考意义。
The purpose of analyzing the force bearing of various structure systems of the plate and truss structures is to design specifically for different structures according to the features of force bearing.
对板桁结构的各结构体系受力分析的目的是为了在设计过程中能根据各体系的受力特点，对不同的构件进行有针对性的设计。
The Upper Paleozoic is the major gas-bearing series of strata in Ordos basin, where gas accumulation is controlled by facies belts and all the major pay zones are of delta sedimentary systems.
上古生界是鄂尔多斯盆地重要的含气层系，天然气的聚集受相带的控制，其主产层均为三角洲沉积体系。
In addition to its Industrial Ethernet and connectivity product lines, HAC has a leading position in electronic control and safety systems for cranes and other load-bearing equipment.
除工业以太网和连通性生产线，HAC在电子控制和起重机安全系统以及其它承载设备领域也处领导者地位。
The scope of the study focuses on the bearing of new education and the establishment of modern schooling system and the formation process of modern schooling systems.
研究范围确定为新教育的产生与新学制的成立到现代学制的形成过程。
An article shall be added as article 29: "the state carries out the child-bearing insurance system and shall establish other sound guarantee systems relating to child-bearing."
增加一条，作为第二十九条：“国家推行生育保险制度，建立健全与生育相关的其他保障制度。”
The rubber bearing base isolation as one of the effective control of damping systems has been widely used in the actual projects.
橡胶垫基础隔震技术作为一种有效的减震控制之一，在实际工程中得到了广泛的运用。
Main hydrocarbon bearing layer systems are Middle-Upper Jurassic shallow Marine sandstone, Upper Crataceous river faciess and delta faciess clastic rock.
主要的含油气层系为中上侏罗统浅海相砂岩和上白垩统河流、三角洲相碎屑岩。
Main hydrocarbon bearing layer systems are Middle-Upper Jurassic shallow Marine sandstone, Upper Crataceous river faciess and delta faciess clastic rock.
主要的含油气层系为中上侏罗统浅海相砂岩和上白垩统河流、三角洲相碎屑岩。
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