Skip to main content
Advertisement
Browse Subject Areas
?

Click through the PLOS taxonomy to find articles in your field.

For more information about PLOS Subject Areas, click here.

< Back to Article

Fig 1.

Design scheme of shock absorber test bench.

More »

Fig 1 Expand

Fig 2.

Schematic diagram of hydraulic servo displacement control system structure.

More »

Fig 2 Expand

Fig 3.

Working principle diagram of valve controlled symmetrical hydraulic cylinder.

More »

Fig 3 Expand

Fig 4.

Optimization flowchart of dung beetle optimization algorithm.

More »

Fig 4 Expand

Fig 5.

Boundary selection strategy one.

More »

Fig 5 Expand

Fig 6.

Boundary selection strategy two.

More »

Fig 6 Expand

Fig 7.

Algorithm DBO search agent distribution.

More »

Fig 7 Expand

Fig 8.

AEMSim model of valve-controlled hydraulic cylinder.

1. Electrical machinery 2. Fixed displacement pump 3. Proportional relief valve 4. Servo Valve 5. Joint simulation interface 6. Pressure sensor 7. Valve-controlled hydraulic cylinder 8. Displacement sensor 9. External load.

More »

Fig 8 Expand

Fig 9.

Simulink model of DBO-DO-RAC controller.

1. Target displacement and its derivatives of various orders 2. Joint simulation interface 3.Virtual control rate α2 4. Virtual control rate α1 5. Optimization parameters of dung beetle optimization algorithm 6. Robust adaptive controller u 7. Model compensation item ua 8. Robust control rate us.

More »

Fig 9 Expand

Table 1.

Main parameters of the mode l.

More »

Table 1 Expand

Fig 10.

Iterative curve of the dungeon algorithm.

More »

Fig 10 Expand

Table 2.

DBO-DO-RAC tuning parameters.

More »

Table 2 Expand

Fig 11.

Step signal response curve.

More »

Fig 11 Expand

Fig 12.

Step signal error curve.

More »

Fig 12 Expand

Table 3.

Comparison of simulation results for step control signals.

More »

Table 3 Expand

Fig 13.

Sinusoidal signal response curve.

More »

Fig 13 Expand

Fig 14.

Sinusoidal signal error curve.

More »

Fig 14 Expand

Table 4.

Comparison of simulation results for sinusoidal control signals.

More »

Table 4 Expand

Fig 15.

Damping damper test bench.

More »

Fig 15 Expand

Fig 16.

Step signal response curve.

More »

Fig 16 Expand

Fig 17.

Step signal error curve.

More »

Fig 17 Expand

Fig 18.

Sinusoidal signal response curve.

More »

Fig 18 Expand

Fig 19.

Sinusoidal signal error curve.

More »

Fig 19 Expand

Fig 20.

Ramp signal response curve.

More »

Fig 20 Expand

Fig 21.

Ramp signal error curve.

More »

Fig 21 Expand

Table 5.

Comparison of experimental signal results.

More »

Table 5 Expand