The invention relates to a problematic cable/concentrated load/generalized displacement progressive recognition method on the basis of hybrid monitoring, which is based on hybrid monitoring. Cable structure temperature and ambient temperature are monitored to determine whether a mechanical calculation reference model of the cable structure needs to be updated, thereby obtaining a mechanical calculation reference model of the cable structure counting in the cable structure temperature and ambient temperature; and the calculation is performed on the basis of the model to obtain unit-damage monitored quantity value change matrix. The noninferior solution of the evaluated object current nominal damage vector is calculated according to the near linear relationship among the monitored quantity current value, monitored quantity current initial value vector, unit-damage monitored quantity value change matrix and unknown evaluated object current nominal damage vector, thereby recognizing the bracket generalized displacement, concentrated load variation and problematic cable in the presence of temperature change.

Problematic cable/concentrated load/generalized displacement progressive recognition method on basis of cable power monitoring

The invention discloses a progressive identifying method for a problem cable and concentrated loads based on space coordinate monitoring in time of angular displacement. The identifying method determines whether the mechanical calculation reference mode of a cable structure needs to be updated or not based on the space coordinate monitoring through monitoring the support angular displacement, cable structure temperature and environmental temperature, so that a mechanical calculation reference mode, considering the support angular displacement, the cable structure temperature and the environmental temperature, of the cable structure is obtained. On the basis of the model, a unit damage monitored coordinate numerical value change matrix is obtained through calculation. According to the approximate linear relation existing between the current numerical value vector of monitored coordinates and the current initial numerical value vector of the monitored coordinates, the unit damage monitored coordinate numerical value change matrix and a current evaluated object nominal damage vector to be solved, the non-inferior solution of the current evaluated object nominal damage vector is calculated, and therefore when the support angular displacement and temperature changes happen, influences of interference factors can be removed, and the variable quantity of concentrated loads and the problem cable can be identified.

Progressive identifying method for problem cable and concentrated loads based on space coordinate monitoring in time of angular displacement

The invention relates to a problematic cable/concentrated load progressive recognition method on the basis of generalized displacement cable power monitoring, which is on the basis of cable power monitoring. Bracket generalized displacement, cable structure temperature and ambient temperature are monitored to determine whether a mechanical calculation reference model of the cable structure needs to be updated, thereby obtaining a mechanical calculation reference model of the cable structure counting in the bracket generalized displacement, cable structure temperature and ambient temperature; and the calculation is performed on the basis of the model to obtain unit-damage monitored quantity value change matrix. The noninferior solution of the evaluated object current nominal damage vector is calculated according to the near linear relationship among the monitored quantity current value, monitored quantity current initial value vector, unit-damage monitored quantity value change matrix and unknown evaluated object current nominal damage vector, thereby eliminating the influence of interference factors and recognizing the concentrated load variation and problematic cable in the presence of bracket generalized displacement and temperature change.

Problematic cable/concentrated load progressive recognition method on basis of generalized displacement cable power monitoring

Disclosed is a generalized displacement hybrid monitoring damaged cable load progressive identification method. The method comprises the steps that on the basis of hybrid monitoring, whether a mechanical calculation reference model of a cable structure needs to be updated or not is determined by monitoring support generalized replacement, the temperature of the cable structure, the environment temperature, the load variation degree and the damaged degree of a damaged cable; a new mechanical calculation reference model, including the support generalized displacement, the load variation degree, the damaged degree of the damaged cable and the temperature, of the cable structure is obtained; on the basis of the model, according to the approximate linear relation between a current numerical vector of a monitored amount and a current initial numerical vector of the monitored amount, the approximate linear relation between the current numerical vector of the monitored amount and a unit damage monitored amount numerical variation matrix, and the approximate linear relation between the current numerical vector of the monitored amount and a current nominal damage vector to be solved, when the support generalized displacement and temperature variation exist, the influence of an interference factor can be removed, and the damaged cable and the load variable quantity can be accurately identified.

Generalized displacement cable force monitoring damaged cable load progressive identification method

The invention discloses a defective cable and support angular displacement progressive identification method based on mixed monitoring of temperature change. The method comprises the following steps of: on the basis of mixed monitoring, judging whether a mechanical calculation reference model of a cable structure is required to be updated by monitoring the temperature of the cable structure, environment temperature and the health state of an evaluated object, and thus obtaining the mechanical calculation reference model of the cable structure, into which the temperature of the cable structure and the environment temperature are recorded; and on the basis of the mechanical calculation reference model, acquiring a unit damage monitored amount unit change matrix by calculation. A non-inferior solution of the current nominal damage vector of the evaluated object is obtained by calculation according to an approximately linear relationship between the current value vector of monitored amount, the current initial value vector of the monitored amount, the unit damage monitored amount unit change matrix, a unit damage or unit angular displacement vector and the to-be-obtained current nominal damage vector of the evaluated object, so a damaged cable, a loosened cable and support angular displacement can be quickly identified when the temperature change occurs.

Defective cable and support angular displacement progressive identification method based on angular monitoring of temperature change

The invention provides a progressive method for identifying a damaged cable and a support generalized displacement on the basis of mixed monitoring. Taking into consideration the fact that linear relationships between the current value vector of the monitored amount and an initial value vector of the monitored amount, a unit damage monitored amount variation matrix and the current nominal damage vector are approximate with each other, the invention provides a method for approaching nonlinear relation in a sectional way by using the linear relationships in order to overcome the defects. A big interval is divided into continuous small intervals; the linear relation is accurate enough within each small interval; and the support generalized displacement and the damaged cable can be rapidly identified within each small interval by using a multi-target optimization algorithm and other appropriate algorithms.

Han Yulin

Papers

Problematic cable/concentrated load/generalized displacement progressive recognition method on basis of cable power monitoring

Progressive identifying method for problem cable and concentrated loads based on space coordinate monitoring in time of angular displacement

Progressive method for identifying damaged cable and support generalized displacement on the basis of mixed monitoring

Problematic cable/concentrated load progressive recognition method on basis of generalized displacement cable power monitoring

Generalized displacement cable force monitoring damaged cable load progressive identification method