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Cable Structure

The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform

Han Jiayi – 1st expert on this subject based on the ideXlab platform

  • damaged Cable load progressive recognition method based on space coordinate monitoring
    , 2014
    Co-Authors: Han Yulin, Han Jiayi

    Abstract:

    The invention discloses a damaged Cable load progressive recognition method based on space coordinate monitoring. The method includes the steps of determining whether a mechanical calculation reference model of a Cable Structure needs to be updated by monitoring the Cable structural temperature, the environment temperature, the change degree of load and the damage degree of damaged Cables on the basis of space coordinate monitoring, and obtaining a new mechanical calculation reference model, including the change degree of the load and the damage degree and temperature of the damaged Cables, of the Cable Structure. On the basis of the new mechanical calculation reference model and according to the approximate linear relation between the current value vector of monitored data and the current initial value vector of the monitored data and the approximate linear relation between the value change matrix of monitored data in unit damage and the current nominal damage vector to be solved, the non-inferior solution of the current nominal damage vector of the evaluated objects can be calculated. In this way, influences of interference factors can be eliminated, and the damaged Cables and the variation quantity of the load can be accurately recognized when the temperature changes.

  • recognition method for damaged Cable load support angular displacement based on mixing monitoring
    , 2014
    Co-Authors: Han Yulin, Song Jingran, Han Jiayi

    Abstract:

    The invention discloses a recognition method for damaged Cable load angular displacement based on mixing monitoring. Whether a mechanical calculation reference model of a Cable Structure needs to be updated or not is determined through monitoring Cable Structure temperature and environment temperature, so that a mechanical calculation reference model, taking the Structure temperature and the environment temperature into account, of the Cable Structure is obtained, and based on the model, a unit damage monitored parameter value change matrix is obtained through calculation. Based on approximate linear relations existing among current value vectors of monitored parameters, current initial value vectors of the monitored parameters, the unit damage monitored parameter value change matrix and current nominal damage vectors of evaluated objects to be solved, non-inferior solutions of the current nominal damage vectors of the evaluated objects are calculated, and therefore when the temperature changes, the support linear displacement, a load change quantity and a damaged Cable can be recognized.

  • progressive recognition method for damaged Cable load and linear displacement through mixed monitoring
    , 2014
    Co-Authors: Han Yulin, Ye Lei, Han Jiayi

    Abstract:

    The invention relates to a progressive recognition method for damaged Cable load and linear displacement through mixed monitoring. According to the method, based on mixed monitoring, whether a mechanical calculation reference model of a Cable Structure needs to be updated or not is determined by monitoring Cable Structure temperature and environment temperature, a new mechanical calculation reference model, with the Cable Structure temperature and the environment temperature included, of the Cable Structure is obtained, and a unit damage monitored parameter numerical value varying matrix is obtained through calculation based on the model. According to the approximate linear relation existing among current numerical value vectors of monitored parameters, current initial numerical value vectors of the monitored parameters, the unit damage monitored parameter numerical value varying matrix and the current nominal damage vector of an evaluation object to be solved, a noninferior solution of the current nominal damage vector of the evaluation object is calculated, and accordingly generalized displacement of a supporting base, a damaged Cable and the load variable quantity can be recognized when the temperature changes.

Han Yulin – 2nd expert on this subject based on the ideXlab platform

  • damaged Cable load progressive recognition method based on space coordinate monitoring
    , 2014
    Co-Authors: Han Yulin, Han Jiayi

    Abstract:

    The invention discloses a damaged Cable load progressive recognition method based on space coordinate monitoring. The method includes the steps of determining whether a mechanical calculation reference model of a Cable Structure needs to be updated by monitoring the Cable structural temperature, the environment temperature, the change degree of load and the damage degree of damaged Cables on the basis of space coordinate monitoring, and obtaining a new mechanical calculation reference model, including the change degree of the load and the damage degree and temperature of the damaged Cables, of the Cable Structure. On the basis of the new mechanical calculation reference model and according to the approximate linear relation between the current value vector of monitored data and the current initial value vector of the monitored data and the approximate linear relation between the value change matrix of monitored data in unit damage and the current nominal damage vector to be solved, the non-inferior solution of the current nominal damage vector of the evaluated objects can be calculated. In this way, influences of interference factors can be eliminated, and the damaged Cables and the variation quantity of the load can be accurately recognized when the temperature changes.

  • recognition method for damaged Cable load support angular displacement based on mixing monitoring
    , 2014
    Co-Authors: Han Yulin, Song Jingran, Han Jiayi

    Abstract:

    The invention discloses a recognition method for damaged Cable load angular displacement based on mixing monitoring. Whether a mechanical calculation reference model of a Cable Structure needs to be updated or not is determined through monitoring Cable Structure temperature and environment temperature, so that a mechanical calculation reference model, taking the Structure temperature and the environment temperature into account, of the Cable Structure is obtained, and based on the model, a unit damage monitored parameter value change matrix is obtained through calculation. Based on approximate linear relations existing among current value vectors of monitored parameters, current initial value vectors of the monitored parameters, the unit damage monitored parameter value change matrix and current nominal damage vectors of evaluated objects to be solved, non-inferior solutions of the current nominal damage vectors of the evaluated objects are calculated, and therefore when the temperature changes, the support linear displacement, a load change quantity and a damaged Cable can be recognized.

  • progressive recognition method for damaged Cable load and linear displacement through mixed monitoring
    , 2014
    Co-Authors: Han Yulin, Ye Lei, Han Jiayi

    Abstract:

    The invention relates to a progressive recognition method for damaged Cable load and linear displacement through mixed monitoring. According to the method, based on mixed monitoring, whether a mechanical calculation reference model of a Cable Structure needs to be updated or not is determined by monitoring Cable Structure temperature and environment temperature, a new mechanical calculation reference model, with the Cable Structure temperature and the environment temperature included, of the Cable Structure is obtained, and a unit damage monitored parameter numerical value varying matrix is obtained through calculation based on the model. According to the approximate linear relation existing among current numerical value vectors of monitored parameters, current initial numerical value vectors of the monitored parameters, the unit damage monitored parameter numerical value varying matrix and the current nominal damage vector of an evaluation object to be solved, a noninferior solution of the current nominal damage vector of the evaluation object is calculated, and accordingly generalized displacement of a supporting base, a damaged Cable and the load variable quantity can be recognized when the temperature changes.

H.j. Jung – 3rd expert on this subject based on the ideXlab platform

  • Feasibility Study of the Electromagnetic Damper for Cable Structures Using Real-Time Hybrid Simulation.
    Sensors, 2017
    Co-Authors: H. Y. Jung, H.j. Jung

    Abstract:

    Cable Structure is a major component of long-span bridges, such as Cable-stayed and suspension bridges, and it transfers the main loads of bridges to the pylons. As these Cable Structures are exposed to continuous external loads, such as vehicle and wind loads, vibration control and continuous monitoring of the Cable are required. In this study, an electromagnetic (EM) damper was designed and fabricated for vibration control and monitoring of the Cable Structure. EM dampers, also called regenerative dampers, consist of permanent magnets and coils. The electromagnetic force due to the relative motion between the coil and the permanent magnet can be used to control the vibration of the Structure. The electrical energy can be used as a power source for the monitoring system. The effects of the design parameters of the damper were numerically analyzed and the damper was fabricated. The characteristics of the damper were analyzed with various external load changes. Finally, the vibration-control and energy-harvesting performances of the Cable Structure were evaluated through a hybrid simulation. The vibration-control and energy-harvesting performances for various loads were analyzed and the applicability to the Cable Structure of the EM damper was evaluated.

  • Feasibility study of the electromagnetic damper for Cable Structures using real-time hybrid simulation
    Sensors (Switzerland), 2017
    Co-Authors: H. Y. Jung, I. H. Kim, H.j. Jung

    Abstract:

    © 2017 by the authors. Licensee MDPI, Basel, Switzerland. Cable Structure is a major component of long-span bridges, such as Cable-stayed and suspension bridges, and it transfers the main loads of bridges to the pylons. As these Cable Structures are exposed to continuous external loads, such as vehicle and wind loads, vibration control and continuous monitoring of the Cable are required. In this study, an electromagnetic (EM) damper was designed and fabricated for vibration control and monitoring of the Cable Structure. EM dampers, also called regenerative dampers, consist of permanent magnets and coils. The electromagnetic force due to the relative motion between the coil and the permanent magnet can be used to control the vibration of the Structure. The electrical energy can be used as a power source for the monitoring system. The effects of the design parameters of the damper were numerically analyzed and the damper was fabricated. The characteristics of the damper were analyzed with various external load changes. Finally, the vibration-control and energy-harvesting performances of the Cable Structure were evaluated through a hybrid simulation. The vibration-control and energy-harvesting performances for various loads were analyzed and the applicability to the Cable Structure of the EM damper was evaluated.