Modeling and Analysis on Cushion Characteristics of Fast and High-Flow-Rate Hydraulic Cylinder

Table 2

Advantages and disadvantages of the three simulation models.

Simulation model	Advantages	Disadvantages
Lumped parameter model	() Fast modeling time; () Fast calculating time (about 1 min)	() Low accuracy on both values and tendency
Integrated model	() Normal calculating time (about 30 min); () High similarity to the values of the test data; () Normal similarity to the test tendency of cushion process	() Long modeling time (need to consider all the components of hydraulic system)
CFD simulation model	() Normal modeling time; () High similarity to the test tendency of cushion process; () Disclosure of the flow pattern during cushion process	() Long calculating time (about 40 h); () Normal accuracy on values compared to test data