engine knocking 中文意思是什麼
engine knocking
解釋
爆震-
The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals
第四章首次引入一種重分配方法，得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈（ rspwvd ） ；對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析；通過對各種異響故障特徵信號的分析研究，提出基於rspwvd的發動機多異響故障診斷策略，利用該策略可以準確識別不同的發動機異響故障。 -
The engine is knocking badly.
引擎的爆擊聲響得厲害。 -
Analysis of the automotive engine piston knocking
汽車發動機活塞敲缸探析 -
The engine is knocking
發動機發出敲擊的聲音。 -
If the engine is heard to be knocking at any time, it must be slowed down at once
不論什麼時候如果聽到發動機有撞擊聲，都必須立刻降低運轉速度。 -
If the engine starts knocking, it could be a worn big - end bearing
如果引擎開始叩叩地響，有可能是大端軸磨損了。 -
Their engine would start to misfire causing it to make knocking noises
他們的引擎就開始發出撞擊的噪音，但並不起火。 -
A new type of wavelet - exponential damping wavelet is constructed to detect the knocking sound caused by mechanical faults in an engine, experimental results show that by this wavelet effective features of those faults can be extracted from noise signal
為了識別發動機噪聲信號中表徵故障的間歇性撞擊聲，本文構造的一種新型的小波指數衰減型小波函數，它能有效地識別出間歇性撞擊聲。
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