A conjunctive spot S-curve velocity look-forward control profile is proposed, the maximal linkup speed at the conjunctive spot is determined by the actual conditions of the conjunctive spot on the process route at first.
提出了型值點S型曲線加減速前瞻控制算法,先根據加工路徑的型值點實際情況,確定每一型值點處的最大銜接速度,然后采用S型曲線加減速控制,實現(xiàn)各路徑段之間進給速度的快速銜接,從而達到高速高精的運動控制目的。
A conjunctive spot S-curve velocity look-ahead control method is applied in this system.
運用了型值點S型曲線加減速前瞻控制算法,根據加工路徑的型值點的實際情況,確定每一型值點處的最大銜接速度,采用S型曲線加減速控制,實現(xiàn)各路徑段之間進給速度的快速銜接,從而達到高速高精的運動控制目的。
Quantitative prediction of landslide using S-curve;
能夠反映滑坡如此運動過程的典型數學函數是Pearl曲線,本質上此S型曲線與系統(tǒng)有阻尼的自由振動微分方程是一致的,也與生物群體演化的蟲口方程一致,它們都共同反映了物質運動的一般規(guī)律,因此可以用來預測滑坡運動過程。
Through the analysis about superelevation calculation in middle of S type curve,The author brings forward the improvement method of oblique ridge road arch in convolution engagement of S type curve.
根據S型曲線在超高過渡計算時遇到的具體情況進行分析,提出了對"S型曲線"在兩反向回旋線銜接處進行用斜脊式路拱設計的改進方法。
The article show the method of design and calculation of S type curve in two familiar sight in high grade road design.
本文闡述了高等級公路線形設計中 ,在兩種常見情形下 ,應用“曲線法”進行 S型曲線的設計與計算。
The thought of defining characteristic section and dividing superelevation transition segment into several smaller segments according to the characteristics and types of S-type curve s superelevation transition segment is put forward.
根據S形曲線超高過渡的特點、類型確定超高過渡段中的特征斷面,提出S形曲線超高過渡分段處理的思路,并給出S型曲線超高過渡段上任意樁號處、橫斷面上任意點超高值的簡單計算公式。
Based on the principles of autocatalysis and the theory of entropy, this paper tries to discuss and attest the autocatalytic mechanism in systems which cause general S curve.
運用熵理論和自催化原理對系統(tǒng)發(fā)展過程中普遍存在的 S型曲線的成因進行了論述和證明 ,指出系統(tǒng)出現(xiàn) S型發(fā)展曲線是由系統(tǒng)的自催化機制和系統(tǒng)的限制因素共同作用引取。
Results showed that the growth and development of White-Cheeked Starling′s nestlings was divided into three period, the nestlings growth presented the “S” type curve.
結果表明:灰椋鳥雛鳥生長發(fā)育分為三個時期,雛鳥生長呈現(xiàn)“S”型曲線。