Yongzhong Zhao

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Harmonic detection technology is one of the key technologies of active power filter (APF). Its development decides the development of APF technology. Due to the grid harmonic inherent characters, like non-linear randomness, distribution, non-stationary and factors influencing the complexity of other features, it is difficult to accurately detect the(More)
—Aiming at the difficult problem to calculate and the joint's inner force of certain type solid propellant rocket motor's thrust vector control (TVC)system, which working condition are hard to control and replyˈcomputational fluid dynamics (CFD) combined rigid multibody dynamics (RAD) is applied for numerical calculation on dynamics capability system. The(More)
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