Multi-Station Hip Joint Simulator
The Multi-Station Hip Joint Simulator is a specialized tribological testing device designed to simulate friction and wear behavior of artificial hip joints under physiological gait conditions. Driven by motors and servo-pneumatic loading systems, it reproduces anatomically realistic motions of the femoral head against the acetabular cup with dynamic bi-axial loading. The simulator supports multiple stations running in parallel, providing a cost-effective solution for long-term wear testing, research, and quality evaluation of hip implants.
Standards
ASTM F732 – Reciprocating Pin-on-Plate Wear Test (applied to joint simulators).
Parameters
| Parameter | Specification |
|---|
| Test Configuration |
Acetabular Cup / Femoral Head |
| Number of Stations |
6 or 12 |
| Test Frequency |
1.06 Hz (50 Hz power) / 1.27 Hz (60 Hz power) |
| Maximum Load |
3 kN (6 stations) / 2 kN (12 stations) |
| Minimum Load |
0.4 kN |
| Average Load |
1.2 kN |
| Load Form |
Double-peak dynamic load |
| Flexion-Extension (FE) |
46° |
| Abduction-Adduction (AA) |
12° |
| Force Trajectory Shape |
Elliptical |
| Force Trajectory Ratio |
3.8 |
| Trajectory Length |
1.73 × r (r = femoral head radius) |
| Drive |
Motor + Mechanical Crank |
| Motor Power |
370 W |
| Lubricant Volume |
500 ml |
| Controlled Parameters |
Load, cycle number |
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