A hydraulic variable speed drive system of shield disk cutter has been designed.
设计了盾构刀盘变转速液压驱动系统。
With the nonlinear and time variable characteristics of hydraulic turbine regulation system, high qualified speed adjustment system cannot be achieved with the conventional PID controller.
水轮机调节系统具有非线性和时变性的特性，传统的PID控制器无法获得高性能的调速系统。
Variable speed hydraulic drive system is a new type energy saving system.
变转速液压驱动系统是一种新型的节能传动系统。
In this paper, the principle of variable speed pump control hydraulic differential cylinder is designed, and the simulation model of system is built, and the simulation research is carried out.
给出了采用变转速泵控闭式回路控制差动缸的原理，建立了该系统的数学模型，进行了计算机数字仿真研究。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
The model of hydraulic motor pump variable speed control system is built.
同时建立了该液压电机泵变速控制系统的数学模型。
Appropriate pitch curve designing is a key of regularly working for non-circular planetary gear mechanism with variable center distance which can be used in low speed high torque hydraulic motor.
合理的节曲线设计是可用于低速大扭矩液压马达的变中心距非圆行星齿轮机构正常工作的关键。
The electro-hydraulic servo system directly controlled with speed variable pumps is a competitive and environmental beneficial driving principle.
介绍新提出的用变转速液压泵闭环控制的差动缸电液伺服系统。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
Speed variable hydraulic coupling device could be used in every kind of motors, but is less safety than the former.
调速型液力耦合器，适用于各类电动机，但可靠性不如前者；
Finally, analysis speed-loop of variable frequency drive crumb cake hydraulic machine.
最后，分析了变频调速液压屑饼机的调速回路。
This paper describes systematically the design of all-hydraulic or electrohydraulic variable speed control mechanism, providing a reference of designing machine tools and related teaching.
本文对机床齿轮变速的全液压与电液操纵机构的设计作了系统介绍。可供机床设计与教学参考。
This paper describes systematically the design of all-hydraulic or electrohydraulic variable speed control mechanism, providing a reference of designing machine tools and related teaching.
本文对机床齿轮变速的全液压与电液操纵机构的设计作了系统介绍。可供机床设计与教学参考。
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