Abstract: In view of the problems on unreal-time, less realistic and the instability of the marine flexible rope simulation system, one kind of structure-bending spring model was proposed based on the traditional mass-spring model. Bending springs were added in the model to limit the abnormal bending phenomenon in the particle of model by setting different elasticity and damping coefficient for two kinds of spring to simulate the ropes with different rigidity. In order to guarantee the stability and accuracy of the model, improved Euler method was adopted for numerical solution. At the same time, position adjustment method and speed adjustment method were used to solve the problem of super elasticity in the simulation of flexible rope, and verify the feasibility of the model by simulation experiments.

Key words: flexible rope, mass-spring model, structure-bending spring mode, problem of super elasticity