瞬斷率 的英文怎麼說
中文拼音 [shùnduànlǜ]
瞬斷率
英文
short interruption rate-
This method of diesel engine fault diagnosis is feasible theoretically. while the fault diagnosis system using this method is rare, just because the crankshaft instantaneous angular acceleration measurement is demanding, such as, good frequency response, high precision
這種柴油機故障診斷的方法在理論上是可行的,但目前這種成型的系統不多,究其原因是測量曲軸的瞬時角加速度需要系統具有良好的頻率響應特性與高精度。Transient electromagnetic methods ( tem ) can be called as time domain electromagnetic methods. the exploration equipments of tem include two units : transmitter and receiver. emission current falls down from i to 0 suddenly when step current passes through the transmitter loop
瞬變電磁探測需要發射的電流激勵信號要足夠強、功率足夠大,發射電流波形的關斷時間要求比較苛刻,而且發射部分還需提供實時監測發射電流、關斷時間,記錄電流下降沿等功能。The control tactics of space voltage vector are investigated, and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward. by analyzing the current hysteresis control, the relation between switch frequency, and hysteresis bandwidth and input inductance of pwm rectifier is deduced. by applying instantaneous power theory, the principle of pwm rectifier power control is analyzed, and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized, and the simulation results prove that it is correct
對常用空間電壓矢量控制策略進行分析,提出了給定參考矢量所在區間判斷的簡化方法,以及電壓矢量作用時間的求取方法;分析了電流滯環控制策略,推導出開關頻率與滯環帶寬以及整流器輸入電感之間的關系;應用瞬時功率理論分析pwm整流器功率控制原理,通過虛擬磁鏈估計有功功率和無功功率,用matlab實現了直接功率控制,並驗證了該控制方法的正確性。According to transcendent knowledge, this algorithm classifies modulation systems by computing instantaneous frequency and instantaneous bandwidth of signal and regarding them as modulation parameters
該演算法憑借先驗知識,通過計算信號的瞬時頻率和瞬時帶寬,並以此作為制式識別參數來判斷信號的調制類型。The algorithm is also applied in the broken rotor bars detection in squirrel cage induction machines, which is dependent on detecting the twice slip frequency modulation due to the speed or torque in the stator current, and the rotor bar faults can be detected effectively without some preprocessing
指出可以利用信號的小波脊線來提取頻率隨時間連續變換的信號的瞬時頻率,並將該瞬時頻率提取演算法成功地應用到異步電動機定子起動電流信號的分析中,有效地提取出了轉子斷條故障特徵。The forthright discussion of ideas, the constructive work in teams, the courage to challenge the emptiness of irrelevance, the excitement of touching the unknown, the capacity to identify, question and develop a new concept, and the ability to look at the world as an always changing phenomenon, are actions that we consciously place at the center of our professional lives
本學院鼓勵著意讓學生在學習專業知識過程中,直陳己見率地討論意見,在小組中積極參與小分組學習合作,勇於接受挑戰,且享受探索未新知識的樂趣刺激,培養批判能力使其有能力識別,學會分析問題並提出新觀點質疑並演發新概念,明白知道世界瞬息萬變正不斷地改變。Firstly, it needs to separate the girder hull into many elements - pulled one and pushed one. secondly, when the ship is in hogging or sagging, you should assume one curvature value so you can get the moment value of every element at this curvature. and then you may add up all the moment of every element
當船體梁在中垂或中拱狀態下時,假定一個初始曲率,根據各個單元對瞬時彈性中和軸彎矩的貢獻,累加得到相對于這個曲率的總彎矩,然後判斷彎矩是否達到極值,如未達到,則增加曲率,重復上述過程,直到彎矩為極值為止。分享友人