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Abstract:
According to the modeling of a nonlinear system with
hysteresis characteristics, indicate a new method. The model is
constructed with higher order asymmetric rigidity force, viscous damping
force and bilinear hysteretic force. From the parameters separated
identification, establish the function relation between the parameters
and the amplitude, frequency. The contrast result of the hysteresis
curve of restoring force-displacement indicate that the model can
describe thiskind of nonlinear vibration system’s character better, the
modeling and the parameter identification method is practical and
effective.
Key words: Hysteretic model Math modeling Parameters identification
CLC No: TH113
O322
武器装备重点基金资助项目(6140420).
Received 20041018, received in revised form 20050323
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