Automatic Feedback Control of Woolen Card

Murakami, Fumio; Kase, Susumu; Shoman, Toshio

doi:10.4188/jte1955.9.76

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 In 1963, Shoman et al deduced the transfer function of carding machine, and controlled the rotation rate of doffer by the feedback control method. 3 Later, in 1995, Gutierrez et al proposed the transfer function of a linear time invariant system, and designed a state controller with a reduced order linear estimator. 4 A mathematical model of a carding unit was built by Kuo et al, in 2001, and used an observer to estimate state variables, design feedback control system and analyze density fluctuation on the surface of the cylinder.…”

Section: Introductionmentioning

confidence: 99%

Automatic control of roller carding machine. Part I: Modeling and validation of roller carding machine

Kuo

Chou

Lin

2011

Textile Research Journal

View full text Add to dashboard Cite

This study aimed to develop a dynamic model of a roller carding machine. The roller carding machine used in this study comprised one set each of feed conveyors, feed rollers, licker-in rollers, clothing rollers, a set consisting of a cylinder and doffer and two sets of carding rollers/stripping rollers. In order to establish a dynamic mathematical model of a roller carding machine, this study derived the transfer rate and collecting power of cotton web from the mode of movement, relative velocity, clothing tooth angle and friction force of the main rollers of the system. The transfer delay time of the cotton web was deduced from the clearance among working rollers, corresponding angle of roller center, and angular velocity. Finally, the correctness of the dynamic mathematical model of the roller carding machine derived in this study has been proved from the experiment.

show abstract

Section: Introductionmentioning

confidence: 99%

Automatic control of roller carding machine. Part I: Modeling and validation of roller carding machine

Kuo

Chou

Lin

2011

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…In the field of the roller carding machine control studies, Higuchi and Takahashi, 1 Murakami et al, 2 Gutierrez et al 3 and Kuo and Hsieh 4 applied a variety of roller cards or their mechanical component control methods. By the derived mathematical models, the system was simplified by the reduced-order model or controlled by using the first-order mathematical model.…”

mentioning

confidence: 99%

Automatic control of the roller carding machine part II: a study on the application of a sliding mode controller on the roller carding machine

Kuo

Chou

Lin

2012

Textile Research Journal

View full text Add to dashboard Cite

The current roller carding machine control methods lack in the theoretical basis of using an auto-leveler, and are limited to the control of the cotton web layer thickness or the input amount of fibers. When the input amount changes, the output response is relatively slow, thus resulting in considerable impact on fiber web quality. Therefore, this study first established the theoretical modeling, and validated the dynamic mathematical model of the roller carding machine. This study used the sliding mode control in the design of the controller to control uniformity of the output fiber web of the roller carding machine. The sliding mode control used in this study was to allow the system to move in the dynamic process according to the pre-determined sliding mode trajectory, and then use the preset approximation conditions and switching conditions as the control law to navigate the system, in order to achieve the control objectives. Under the sliding mode control, with robust performance to suppress external disturbances and appropriate design of the sliding surface and boundary layer, dynamic model analysis and control adjustment for the system can be implemented to achieve the control objectives and uniform fiber web output. The experimental results confirmed that sliding mode control can effectively control fiber web uniformity of the roller carding machine.

show abstract

Automatic Feedback Control of Woolen Card

Cited by 2 publications

References 1 publication

Automatic control of roller carding machine. Part I: Modeling and validation of roller carding machine

Automatic control of roller carding machine. Part I: Modeling and validation of roller carding machine

Automatic control of the roller carding machine part II: a study on the application of a sliding mode controller on the roller carding machine

Contact Info

Product

Resources

About