Positive solutions of boundary value problems of some singular second order systems 一類奇異二階系統(tǒng)邊值問題的正解
Existence of two positive solutions to boundary value problems of second order systems 二階微分方程組邊值問題2個(gè)正解的存在性
Method and its application of dynamic weighing for automobile based on second order system 基于二階系統(tǒng)的動(dòng)態(tài)汽車衡稱重方法及應(yīng)用
Existence of periodic solutions for a class of second order systems with sublinear nonlinearity 一類帶有次線性非線性項(xiàng)的二階系統(tǒng)周期解的存在性
Existence of periodic solutions with saddle point characteristics for some non - autonomous second order systems 某類非自治二階系統(tǒng)具鞍點(diǎn)特征的周期解的存在性
The global attractor of the sine - gordon type nonlinear second order system under nonhomogeneous boundary condition and the stabilizability 型二階非線性系統(tǒng)的全局吸引子及能穩(wěn)性
Comparing fuzzy control with optimal control , it is found that the fuzzy control of a class of second order systems is actually a near - optimal control 通過二階系統(tǒng)的模糊控制和時(shí)間最優(yōu)控制的對(duì)比發(fā)現(xiàn),一類二階系統(tǒng)或可近似為二階系統(tǒng)的模糊控制實(shí)際上是對(duì)二階系統(tǒng)最優(yōu)控制的一種近似。
The simulation results show that this method is effective and successful with strong robustness , and can also be used to some other linear or nonlinear second order systems 理論分析和仿真表明,這種基于時(shí)間最優(yōu)控制的非線性設(shè)計(jì)方法具有很好的控制效果和魯棒性,適用于一類二階系統(tǒng)的控制。
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(dòng),固定軸的轉(zhuǎn)動(dòng),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(duì)自然與強(qiáng)迫響應(yīng)特性之改變;穩(wěn)定與不穩(wěn)定。
The working principles are as follows : when the factors of the second order mechanics model are proper , the relative displacement , body to shell , is linear to the acceleration of shell . so the acceleration of the second order system is measured by measuring the relative displacement with the optical reflection displacement theory 其工作原理是:當(dāng)二階力學(xué)模型的參數(shù)選擇適當(dāng)時(shí),力學(xué)模型中的質(zhì)量塊相對(duì)外殼的相對(duì)位移與外殼的加速度近似成線性關(guān)系,所以采用光纖反射式位移傳感原理測(cè)量二階力學(xué)模型中的相對(duì)位移就可以達(dá)到測(cè)量二階系統(tǒng)加速度的目的。