查询词典 resistance frame

Combined with practical engineering,this paper introduces the application of truss corbel in the construction of 0# block in continuous rigid frame bridge,and carries out mechanical calculate of its strength and rigidity, shear and bending-resistance of corbel ,deformation of truss,and bearing capacity of embedded parts,which to offer a reference for similar engineering construction.

结合工程实例，介绍了桁架牛腿在连续刚构桥0号块施工中的运用，并对其强度、刚度、牛腿的抗剪抗弯能力、桁架变形、预埋件承载力等方面进行了力学计算，可供类似工程施工参考。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

The experimental research on the lateral resistance system steel frame structure with sandwich-type infilling wall has been completed.

试验研究和理论分析表明，钢框架结构抗侧刚度较低，空腔砌块复合墙体能显著的提高钢框架的抗侧刚度，两者能很好地协同工作，成为钢结构住宅有效的抗侧力体系。

One of the advantages of the post and lintel frame is its resistance to earthquakes.

抬梁式结构的优点之一在于其抗震性。

This particular line incorporates world-class complete vehicle cathode electro-coating technology. The integrated body and chassis frame is subject to degreasing and phosphatization pretreatment and then to cathode electro coating, which significantly improves paint membrane adhesion and corrosion resistance of complete vehicles, brings the products up to quality standards and make complete vehicles resistant to corrosion for more than 10 years.

该生产线采用国际先进的整车阴极电泳技术，车身和底盘车架一体整车经过脱脂、磷化前处理，再进行阴极电泳处理，大大提高整车漆膜附着力及整车耐腐蚀性能，满足产品质量要求，整车的防腐可达十年以上。

The Labcut 1010 is ruggedly constructed with a cast aluminum frame and uses stainless steel components for stability and corrosion resistance.

该labcut号1010是ruggedly兴建的一个铸造铝框，并使用不锈钢部件的稳定性和耐腐蚀性能。

However, as we all know that the resistance appeared after the long term use of fungicides, discovering new generation of fighting resistence with novel frame construction has become a challenged poject in pesticidal field.

随着抗性的产生，研究结构新颖的新一代反抗性的甲氧基丙烯酸酯类杀菌剂成为该领域内一个具有挑战性的课题。

Company provides aluminum materials special for Woodworking machinery,Underground and Train,Container,Textile machinery,Industrial frame line,Pump,Cylinder,Motor casing,Electronic radiator,Electronic communications.Illumination device,Lifter,Sulphation machine, Petrochemicals,Printing and packing equipments and other industries,we focus on developing pure aluminum,hard aluminum alloy,super-hard aluminum alloy,rust-resistance aluminum,bar-tube plate and seamless aluminum round/square pipes and delivers finely processed aluminum products to broad customers.

一林铝业有限公司面向市场提供木工机械铝材、地铁、火车体铝材，集装箱体铝材，纺织机械铝材，工业框架生产流水线铝材，泵体、缸体、电机壳体铝材，电子散热器铝材，电力通讯铝材，灯具铝材，升降机、硫化机铝材，石油化工铝材，印刷包装设备铝材等各行业的专用工业铝材；着重研发纯铝、硬铝、超硬铝、防锈铝、管棒铝材及各种无缝管圆管方管，并面向广大用户提供各种深加工后的铝制品。

On the front beam of the machine's frame,there are equipped with a passive entangling-proof fitting(can also used for fertilizing and furrowing).This fitting can cut down the working resistance and improve working efficiency.

在机具横深前梁的前边配备了被动式防缠绕的装置，也可作施肥、开沟用，此改进可减少工作中的阻力并改进工作效率。

Good quality,especially processing tdplex bulebresisfent glass Iarge and thick glass door withouI frame,counter glass and cu rtain walI glass It adopts patent (ZL00220773.7) chain belt convey It has tight clamp force without skidding good tensile resistance(2 tons／belt)and good wear-ability Its service life is prolonged(1560 days of normal service) Supe r—dimensioned approach rack(1.5m)has good guide to guarantee edging oflong glass .

特别是加工夹层防弹玻璃、大版面厚玻璃、无框门、柜台玻璃、幕墙玻璃的完美设备。该机采用了链带输送的专利技术(zL00220773.7)，夹紧度好不打滑，抗拉性强(约 2 吨等／条)，耐磨性好，使用寿命大大延长(已正常使用 1560 天)。超长进口处引道架(1 5M)导向好，确保长玻璃一次磨出。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。