The research on cable force measurement based on degenerated element with frequency method

摘要

At present, among the methods of cable force measurement, the frequency method is applied extensively for its mature theory and rapid and repeated operation procedure. Based on the theory of frequency method measurement, it generally uses the numerical method with beam element to analysis the parameters of cables under the given conditions. However, the conventional beam element is not able to simulate the bending stiffness in beam's section. Therefore, it turns to degenerated beam element to simulate cables and the results agree well with the results based on beam element and formula's calculation, and it provides theoretical basis for the later cable force testing system.