| Abstract | 第1-9页 |
| Chapter one Introduction | 第9-21页 |
| ·Background | 第9-18页 |
| ·Present development of autoleveller in draw frame | 第9-15页 |
| ·Development and research of yarn draft and it's uneven | 第15-18页 |
| ·origin and main research work of this thesis | 第18-21页 |
| ·Advance of and origin of the thesis | 第18-19页 |
| ·Contents and arrangement of the thesis | 第19-21页 |
| Chapter two Structural design of new autoleveller draw frame | 第21-49页 |
| ·Function and structural analysis of draw frame | 第21-24页 |
| ·Instruction of drawing | 第21-23页 |
| ·Design requirement of draw frame structure | 第23-24页 |
| ·theory and forms of autoleveller | 第24-29页 |
| ·Basic theory of autoleveller | 第24-27页 |
| ·Common used forms and features of autoleveller | 第27-29页 |
| ·Mechanical design of new draw frame with autoleveller | 第29-36页 |
| ·Mechanical design | 第29-32页 |
| ·Structural design of autoleveller draw frame | 第32-36页 |
| ·Design of control system | 第36-42页 |
| ·Design foundation of control system | 第36-38页 |
| ·Overall design of control system | 第38-42页 |
| ·Hardware and software of the control system | 第42-47页 |
| ·Basic principles of hardware design of the control system | 第42页 |
| ·Hardware of the control system | 第42-43页 |
| ·Basic principles of software design of the control system | 第43页 |
| ·Software design of the system | 第43-47页 |
| ·Summary | 第47-49页 |
| Chapter Three Research of autoleveller controller | 第49-82页 |
| ·Analysis of necessity of fuzzy controller in autoleveller | 第49-50页 |
| ·Design of new fuzzy controller | 第50-74页 |
| ·Basic theory of fuzzy control | 第50-57页 |
| ·Design of ordinary autoleveller fuzzy controller | 第57-61页 |
| ·Design of fuzzy controller with autolevel factor | 第61-64页 |
| ·Design of fuzzy controller with quantity curve | 第64-65页 |
| ·Optimize design for quantity curve of fuzzy controller | 第65-74页 |
| ·Definition of autolevel process parameters | 第74-81页 |
| ·Definition of delay time | 第74-78页 |
| ·Selection of controlled quantity | 第78-81页 |
| ·Summary | 第81-82页 |
| Chapter four Study on the chaos feature for unevenness of sliver | 第82-111页 |
| ·Analysis of chaos time series | 第82-86页 |
| ·Development stage and features of chaos time series analysis | 第83-84页 |
| ·Re-construction of phase space | 第84-85页 |
| ·Identification for features of time series | 第85页 |
| ·Model building and prediction of non-linear time series | 第85-86页 |
| ·Study of chaos feature in sliver irregularity | 第86-94页 |
| ·Reconstruction of phase space | 第86-87页 |
| ·Self correlation functions | 第87-88页 |
| ·Inter information content | 第88-89页 |
| ·Correlation dimension number | 第89-91页 |
| ·The biggest Lyapunov index | 第91-93页 |
| ·Analysis of main vector (PCA distribution) | 第93-94页 |
| ·Study for chaos feature of sliver irregularity | 第94-103页 |
| ·Model for chaos prediction of sliver irregularity and methods study | 第103-109页 |
| ·Global prediction | 第104-106页 |
| ·Global prediction of sliver irregularity series | 第106-107页 |
| ·Local prediction | 第107-108页 |
| ·Local prediction of sliver irregularity series | 第108-109页 |
| ·Summary | 第109-111页 |
| Chapter five Distribution of fiber shifting points in draft zone and study of attenuation curve | 第111-142页 |
| ·Model building for distribution of fiber shifting points in draft zone | 第111-116页 |
| ·Emulation for fiber shifting points' distribution | 第116-124页 |
| ·Emulation for different friction field shifting points' distribution curve | 第116-119页 |
| ·Shifting points distribution curves emulation of different draft multiples | 第119-121页 |
| ·Shifting points' distribution curves emulation of different fiber length | 第121-122页 |
| ·Shifting points' distribution curves emulation of different Roller interval | 第122-124页 |
| ·emulation of attenuation curve in draft zone | 第124-140页 |
| ·Model building for equilong fiber attenuation equation | 第124-130页 |
| ·Equation emulation for attenuation curve of equilong fiber | 第130-131页 |
| ·Equation model building for fiber attenuation curve with different lengths | 第131-140页 |
| ·Summary | 第140-142页 |
| Chapter six Conclusions and recommendations | 第142-146页 |
| 1. The conclusions could be divided into four parts | 第142-145页 |
| 2. Innovations points in our project | 第145页 |
| 3. Recommendations | 第145-146页 |
| References | 第146-152页 |
