1. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Model of the EHA system for linear motion

2. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Mechanical equivalent model of the EHA system for linear motion

3. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Block diagram of the EHA device control strategy

4. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Conceptual representation of the magnitude frequency response of Gv(s) and GF(s) in the three indicated limit conditions: (a) ωe>>ωeq (b) ωe≪ωeq, (c) |ωe-ωeq|  <  2ke/meq

5. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Adaptive lead-lag damping requirements. High (dashed) and low (solid) damping responses are compared.

6. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Prototype CAD exploded view. (1) Pump side cover, (2) pump journal bearings, (3) pump gears, (4) damper inlet plug (×2), (5) pressure sensor (× 2), (6) electric motor, (7) drain interface, (8) EHA manifold, (9) motor side cover, (10) electric wirings connector, (11) Hall sensors and magnetic disk, (12) damper case, and (13) damper fluid inlets.

7. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Prototype installed on the test bench. (1) Load cell fixed to the test bench frame, (2) EHA pressure sensors, (3) cooling fan and vent, (4) driving ram, (5) damper case, and (6) EHA device

8. Date of download: 10/2/2017
Copyright © ASME. All rights reserved.
From: Modeling, Control, and Validation of Electrohydrostatic Shock Absorbers
J. Vib. Acoust. 2015;137(1): doi: /
Figure Legend:
Force-velocity response of the damper at (a) f = 1.26 Hz and (b) f = 4.75 Hz. Data obtained with open-circuited motor windings (square), short-circuited motor windings (triangle), and active control (circle) are compared to the high-damping (dashed) and low-damping (solid) curves. Simulation data are presented in solid markers while experimental data are presented in hollow markers.