The Experts below are selected from a list of 429 Experts worldwide ranked by ideXlab platform

Xiao-guang Wu - One of the best experts on this subject based on the ideXlab platform.

  • Design of Yarn Tension System and Jacquard Knitting Machine
    Proceedings of the 2014 International Conference on Mechatronics Control and Electronic Engineering, 2014
    Co-Authors: Xiao-guang Wu
    Abstract:

    In view of high fault rates of tension control system in the traditional Circular Knitting Machine, this paper proposes and develops one kind of monolithic integrated circuit yarn tension control system. By using the FTA method to analysis systematically each kind of trouble cause in yarn tension system, and analysis influencing reliable factor of real-time control system, established fault tree the Circular Knitting Machine tension control system. Based on the MCU technology, the sensor network in the program is constituted by ordinary sensor node, the sink node and network coordinator, and responsible for acquiring and transmitting condition information of Circular Knitting Machines. The tension control system has been entered experiment movement with good performance, it is indicated that the this study is benefit to enhance the reliability of yarn tension system. Keywords-Yarn tension; Jacquard Knitting Machine; MCU design; Control System; Tesnsion Parameter

  • Reliability Analysis of Yarn Tension Control System Based on FTA in Jacquard Loom
    2010 International Symposium on Intelligence Information Processing and Trusted Computing, 2010
    Co-Authors: Xiao-guang Wu, Chao Yu
    Abstract:

    Aimed at the problem of high failure rate in the tension control system of traditional Circular Knitting Machine, this paper proposes and develops a kind of embedded yarn tension control system. Systematically study the causes of different failures in yarn tension control system and analysis the influencing reliability factors of real-time control system by FTA (Fault Tree Analysis) method, built system fault tree with qualitative analysis and quantitative analysis, work out the minimal cut set of system and estimate the occurrence probability of the top event. Figure out specific improvement measure and provide reference to enhance the system reliability. The improved tension control system is running steadily in the experiments, and analyzes the result turns to be beneficial to improve the reliability.

  • Pattern data acquisition for high-speed electronic jacquard Circular Knitting Machine
    2009 International Conference on Mechatronics and Automation, 2009
    Co-Authors: Cheng Jun Zhang, Xiao-guang Wu
    Abstract:

    High-speed electronic jacquard Circular Knitting Machine was recognized as a green Machine to protect environment. It can easily produce any kind of pattern on cloth without pollution, while the printing and dyeing cloth technology may produce wastewater, which hardly polluted the environment. A new electronic jacquard technology has replaced the traditional printing and dyeing technology. A control system must be researched to satisfy the high-speed jacquard Circular Knitting Machine. This paper introduced the control system structure and the organization of the pattern data, tested the pattern data accuracy by feedback acquisition system, and used Electronic Design Automation (EDA) technology implemented the production of the acquisition system, emulated the time sequence accuracy by EDA professional software, and tested the frequency of the pin selector. The result is that the pattern data organization and acquisition testing and implementation have offered the theoretical foundation for the production of control system.

Ray H Baughman - One of the best experts on this subject based on the ideXlab platform.

  • knitted carbon nanotube sheath spandex core elastomeric yarns for artificial muscles and strain sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...

  • Knitted Carbon-Nanotube-Sheath/Spandex-Core Elastomeric Yarns for Artificial Muscles and Strain Sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...

Javad Foroughi - One of the best experts on this subject based on the ideXlab platform.

  • knitted carbon nanotube sheath spandex core elastomeric yarns for artificial muscles and strain sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...

  • Knitted Carbon-Nanotube-Sheath/Spandex-Core Elastomeric Yarns for Artificial Muscles and Strain Sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...

C H Au - One of the best experts on this subject based on the ideXlab platform.

  • effect of biopolishing and uv absorber treatment on the uv protection properties of cotton knitted fabrics
    Carbohydrate Polymers, 2014
    Co-Authors: C H Au
    Abstract:

    Abstract Cotton knitted fabrics were manufactured with gauge number 20 G by Circular Knitting Machine with conventional ring spun yarn and torque-free ring spun yarn. Torque-free ring spinning is a new spinning technology that produces yarns with low twist and balanced torque. This study examined whether the impact of biopolishing and UV absorber treatment on UV protection properties on cotton knitted fabric made of torque-free ring spun yarn is different. Biopolishing agent and UV absorber were used to treat the cotton knitted fabrics after scouring and bleaching. The UV protection properties were measured in terms of UV protection factor (UPF) and UV ray transmittance. Experimental results revealed that knitted fabric made from torque-free ring spun has better UPF than knitted fabric made from conventional ring spun yarn in untreated and biopolished states. However, knitted fabric made from conventional ring spun yarn has better UPF than knitted fabric made from torque-free ring spun after UV absorber treatment and combined UV absorber and biopolishing treatment.

Gordon G Wallace - One of the best experts on this subject based on the ideXlab platform.

  • knitted carbon nanotube sheath spandex core elastomeric yarns for artificial muscles and strain sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...

  • Knitted Carbon-Nanotube-Sheath/Spandex-Core Elastomeric Yarns for Artificial Muscles and Strain Sensing
    ACS Nano, 2016
    Co-Authors: Javad Foroughi, Geoffrey M Spinks, Shazed Aziz, Azadeh Mirabedini, Ali Jeiranikhameneh, Gordon G Wallace, Mikhail E Kozlov, Ray H Baughman
    Abstract:

    Highly stretchable, actuatable, electrically conductive knitted textiles based on Spandex (SPX)/CNT (carbon nanotube) composite yarns were prepared by an integrated Knitting procedure. SPX filaments were continuously wrapped with CNT aerogel sheets and supplied directly to an interlocking Circular Knitting Machine to form three-dimensional electrically conductive and stretchable textiles. By adjusting the SPX/CNT feed ratio, the fabric electrical conductivities could be tailored in the range of 870 to 7092 S/m. The electrical conductivity depended on tensile strain, with a linear and largely hysteresis-free resistance change occurring on loading and unloading between 0% and 80% strain. Electrothermal heating of the stretched fabric caused large tensile contractions of up to 33% and generated a gravimetric mechanical work capacity during contraction of up to 0.64 kJ/kg and a maximum specific power output of 1.28 kW/kg, which far exceeds that of mammalian skeletal muscle. The knitted textile provides the co...