钢丝绳弹性组合元件中滞后力的数学建模

钢丝绳弹性元件具有滞后非线性，其恢复力可表示为“非线性无滞后力”和“纯滞后力”之和．由于实际系统中阻尼力的描述比较困难，文中引入了新的参数，描述同时具有干摩擦和线性阻尼特性的混合型阻尼．参数辨识的结果表明，这个模型能够合理反映兼有不同性质阻尼的滞后非线性特性．

A Mathematical Model of Hysteretic Force in Cable Wire Assembly

Elastic element of cable wire assembly exhibit hysteretic nonlinearity. It is found,however, the restoring force can be expressed as the sum of "nonlinear nonhysteretic" force and "pure hysteretic" force. In the actual system it is difficult to describe the damping force exactly due to its complicated nature. A new parameter is proposed to describe the character between linear and dry friction damping. The result of parameter identification shows this model can express hysteretic character effectively.