• It is unlikely that hydraulic technology will be completely replaced

    In addition, different applications have different focus on performance. For example, the hydraulic components work on endurance and the ship hopes to be 20 years old, while the missile

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  • The condition of technological substitution

    1) The functions and application fields must be basically the same. It is nonsense to compare cow's head with horse's leg.2) There are better cost performance or excellent performanc

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  • The examples for new technologies

    History shows that new technologies do not necessarily replace old ones. The following examples can be used for reference.1) The maglev train is suspended in the air by magnetic force, without co

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  • The force does not equal the power, and the force density that is high does not equal the power density that is high!

    Power is force times velocity. Magnetic saturation density and current intensity limit the electromagnetic force but do not limit the speed of the electric drive. Due to the limitations of moving part

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  • Superconductors

    Superconductors, with almost zero resistance, could theoretically pass through an enormous electricity current, reducing the volume and mass of the electromagnetic actuator and further incre

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