Rubber Bushing Dynamic and Static Stiffness Test Bench
Category：Torsion Testing Machine
Introduction
The Rubber Bushing Dynamic and Static Stiffness Test Bench is a specialized testing system designed to evaluate the static stiffness, dynamic stiffness, and fatigue performance of rubber bushings and other rubber vibration-isolation components.The equipment adopts an electro-hydraulic servo control system with computer measurement and control technology. It can simulate the actual working conditions of rubber components and perform static tensile, static compression, dynamic stiffness, and long-term fatigue tests to evaluate the mechanical properties, durability, and service reliability of rubber components.
Applications
The Rubber Bushing Dynamic and Static Stiffness Test Bench is mainly used for performance testing of:
Automotive suspension rubber bushings
Engine mounts and rubber vibration isolators
Chassis rubber components
Rubber joints and elastic components
Other rubber and elastomer products
Typical testing functions include:
Static tensile stiffness testing
Static compression stiffness testing
Dynamic stiffness testing
Fatigue life testing
Load-displacement characteristic analysis
Dynamic force and deformation analysis
It is widely used in:
Automotive manufacturers and parts suppliers
Rubber product manufacturers
Research institutes and universities
Quality inspection and certification laboratories
Applicable Standards
The Rubber Bushing Dynamic and Static Stiffness Test Bench can comply with the following standards:
GB/T 2611 — General Requirements for Testing Machines
GB/T 16826 — Electro-Hydraulic Servo Universal Testing Machines
GB/T 528 — Rubber, Vulcanized or Thermoplastic — Determination of Tensile Stress-Strain Properties
GB/T 7759 — Rubber, Vulcanized or Thermoplastic — Determination of Compression Set
GB/T 9870 — Rubber — Determination of Dynamic Properties
ASTM D5992 — Standard Guide for Dynamic Testing of Vulcanized Rubber and Rubber-Like Materials Using Vibratory Methods
JIS K 6385 — Rubber Vibration Isolators — Testing Methods (including static and dynamic characteristics testing)
Technical Specifications
1. Static Tensile Test Parameters
| Item | Specification |
|---|---|
| Load Range | 0–50 kN |
| Accuracy | ≤ ±1% |
| Displacement Measurement Range | 0.05–1000 mm |
| Speed Range | 0.2–500 mm/min |
| Optional Accessory | Large deformation extensometer available |
2. Static Compression Test Parameters
| Item | Specification |
|---|---|
| Load Range | 0–50 kN |
| Accuracy | ≤ ±1% |
| Displacement Measurement Range | 0.05–500 mm |
| Deformation Measurement Range | 0–100 mm |
| Speed Range | 0.2–500 mm/min |
3. Dynamic Stiffness Test Parameters
| Item | Specification |
|---|---|
| Load Range | Unidirectional 100 kN |
| Frequency Range | 1–40 Hz |
| Maximum Amplitude | ±10 mm (Amplitude: 0.5 mm at 40 Hz frequency) |
| Control Waveform | Sine Wave |
| Test Result Accuracy and Repeatability | ≤3% |
| Load Amplitude Fluctuation | ±2% |
| Force Sensor Accuracy | 0.5% |
| Displacement Measurement Range | ±0.01–50 mm |
| Displacement Resolution | 0.1% |
| Displacement Accuracy | 0.001 |
4. Fatigue Test Parameters
| Item | Specification |
|---|---|
| Maximum Load | ±100 kN |
| Stroke | 0–50 mm |
| Loading Frequency Range | 0.5–5 Hz |
| Amplitude | ±10 mm (According to frequency-amplitude characteristics) |
| Deformation Measurement | 25 mm ±0.05 mm |
| Resolution | 0.005 mm |
| Load Control Accuracy | ±10% |
| Sample Size | Φ200 mm |
| Overvoltage Protection | +10% |
| Undervoltage Protection | -15% |
| Leakage Protection | Available |
Features
The test bench adopts an electro-hydraulic servo system with computer-based measurement and control. It can simulate the vertical working conditions of the specimen and perform fatigue tests on rubber samples for more than one million cycles (10⁶ cycles).
The machine can perform dynamic and static stiffness tests on rubber components.
Loading Mode: Displacement–Frequency Control
Loading Waveform: Sine Wave Control
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