Uniaxial motion , fixed - axis rotation ; first and second order systems ; natural and forced response ; transfer functions , zeroes , poles ; elementary control : open - loop , closed - loop ; closing the loop alters the natural and forced response characteristics ; stability and instability 003單軸運(yùn)動,固定軸的轉(zhuǎn)動,一階與二階系統(tǒng),自然與強(qiáng)迫響應(yīng);轉(zhuǎn)移函數(shù),零點(diǎn),極點(diǎn);基本控制:開回路,閉回路;回授對自然與強(qiáng)迫響應(yīng)特性之改變;穩(wěn)定與不穩(wěn)定。