efficient drive systems was achieved by special controllers that not only modify the losses and efficiency, but also searching for the optimal values of stator current to reduce the power consumptio...Hussein Sarhan, Rateb Issa, Improving mechanical characteristics of Inverter - Induction motor Drive...
as helicopters, high-speed rail, aero engines, etc., is chronically operating in an increasingly harsh environment and its structure is becoming increasingly complex as well, which may result in sudden equipment failure, long maintenance cycles, high maintenance costs, and large downtime losses. Dif...
17.Power and efficiency characteristics of engine with mechanical losses考虑机械损失时发动机功率效率特性 18."Liquid crystals have unique properties. The structures are easily affected by changes in mechanical stress, electromagnetic fields, temperature, and chemical environment. "液晶有独特的性质。改变机械...
When a critical motor unexpectedly breaks down in a factory, production stops. If a specific part or even the entire motor needs to be replaced, there is a risk that long lead times may be incurred. Unplanned downtime costs 10 times more than planned downtime.1Annually, the average ...
can easily damage the motor structure if the mechanical design or assembly is ineffective. Moreover, the magnetic field of the rotor alternates in the stator and causes losses, thereby reducing the operating efficiency of the motor. Therefore, SSSR motors are not widely used in practical ...
Power Flow in Synchronous Motor Basic Electrical Quantities – Charge, Current, Voltage, Power and Energy Efficiency of DC Generator & Condition for Maximum Efficiency with Examples Power Flow Diagram and Losses of Induction Motor EMF Equation of DC generator – Derivation and Examples ...
It has been widely used in machinery manufacturing, power, metallurgy, aerospace and other fields to keep machinery and equipment in good motion and reduce the economic losses caused by parking. Functions anf features: 1. Displacement, velocity and acceleration can be measured. 2. Choose the ...
Losses in Pipes 6. Determination of friction coefficient in pipes 7. Determination of losses due to bends, fittings and elbows C. Pumps 8. Characteristics of Centrifugal pumps 9. Characteristics of Gear pump 10. Characteristics of Submersible pump 11. Characteristics of Reciprocating pump D. ...
fault diagnosis of rolling bearings is important to avoid catastrophes and reduce economic losses [1,2,3,4]. Vibration signals collected from faulty bearings contain periodic transient impulse components that can be used for fault diagnosis. Therefore, extracting the transient components for period calc...
into the motor stator. Conventional MB are a source of energy losses and require lubrication to relieve mechanical friction. High rotational speed of the flywheel rotor in motoring mode generally leads to large friction loss because of wearing. A solution is to select a three DOF hybrid magnetic...