OK Electric Vibration Shaker System OK-ES-3.00000
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Electrodynamically Driven Vibration Shaker |
| Rated Force | 1.98 kN |
| Frequency Range | 5–5000 Hz |
| Maximum Payload | 70 kg |
| Table Surface Dimensions | 300 × 300 × 30 mm |
| Peak Acceleration | 10 g |
Overview
The OK Electric Vibration Shaker System OK-ES-3.00000 is an electrodynamically actuated shaker platform engineered for high-fidelity mechanical vibration testing of automotive components and subsystems. Operating on the principle of Lorentz force generation—where controlled current through voice-coil windings interacts with a permanent magnetic field to produce precise, repeatable inertial excitation—the system delivers broadband dynamic input across 5–5000 Hz. Designed in accordance with ISO 5344, ASTM D999, and SAE J2412 standards, it serves as a foundational tool for laboratory-based durability validation, NVH (Noise, Vibration, Harshness) characterization, and design verification under controlled acceleration spectra. Its rigid aluminum alloy table structure, optimized electromagnetic suspension, and integrated thermal management ensure long-term stability during extended random or swept-sine test profiles.
Key Features
- Electrodynamic actuation architecture delivering high linearity and low harmonic distortion (<0.5% THD at rated force)
- Wide operational frequency bandwidth (5–5000 Hz), enabling resonance detection, fatigue assessment, and high-frequency component screening
- Rated sinusoidal force output of 1.98 kN (peak), supporting rigorous qualification of powertrain mounts, ECUs, sensors, and infotainment modules
- Robust 300 × 300 × 30 mm machined aluminum shaker table with T-slots for secure fixture mounting and modal decoupling
- Real-time closed-loop control interface compatible with industry-standard controllers (e.g., LDS SCADAS, Vibration Research VR9500, or m+p VibControl)
- Integrated over-travel, over-temperature, and over-current protection circuits compliant with IEC 61000-4-28 safety requirements
- Modular amplifier coupling allowing scalability to multi-axis configurations via external signal synchronization
Sample Compatibility & Compliance
The OK-ES-3.00000 accommodates specimens ranging from compact electronic control units (ECUs) and ADAS camera housings to larger assemblies such as HVAC actuators, brake calipers, and instrument panel substrates—up to 70 kg mass. Fixture design follows ISO 10816-3 guidelines for transmissibility minimization and modal isolation. The system supports test execution per ISO 16750-3 (road vehicle electrical disturbances), MIL-STD-810H Method 514.8 (vibration), and GB/T 28046.3–2019 (Chinese automotive EMC standards). All control algorithms are traceable to NIST-calibrated reference accelerometers, and audit-ready test logs include timestamped metadata required for GLP and IATF 16949-compliant quality documentation.
Software & Data Management
The shaker integrates seamlessly with third-party real-time control software platforms supporting classical sine, random, shock, and time-domain road profile replay modes. Iterative control algorithms enable response-based road simulation (RBS), where measured accelerations at critical response points (e.g., mounting brackets or sensor locations) are iteratively matched to target time histories derived from proving ground data. Full digital audit trails—including controller firmware version, calibration certificate ID, operator login, and environmental chamber linkage status—are retained in SQLite or SQL Server databases. Optional FDA 21 CFR Part 11 compliance packages provide electronic signature enforcement, role-based access control, and immutable change history for regulated automotive Tier-1 suppliers.
Applications
- Component-level random vibration testing per GMW14872, Ford CETP 00.00-L-467, and VW 80101 for electronic modules and wiring harnesses
- Resonance dwell and sweep testing to identify structural modes and verify damping effectiveness in interior trim panels and door modules
- Accelerated life testing of battery management systems (BMS) and DC-DC converters under combined thermal-vibration stress profiles
- Pre-validation of LiDAR and radar bracket stiffness prior to vehicle integration, using narrowband excitation near 1–3 kHz
- Correlation studies between physical shaker results and CAE-predicted fatigue life using nCode DesignLife or ANSYS nCode
- Support for hybrid test methods, including electro-hydraulic coordination for full-vehicle four-poster emulation when paired with auxiliary hydraulic actuators
FAQ
What is the maximum payload capacity without derating performance?
The system maintains full-rated force and acceleration specifications up to 70 kg, provided the center of gravity remains within ±15 mm of the table’s geometric center and fixture mass does not exceed 20% of total payload.
Is the shaker compatible with standard slip tables for horizontal-axis testing?
Yes—mechanical interfaces conform to ISO 5347-11 mounting dimensions, enabling direct integration with commercially available horizontal slip tables and reaction mass systems.
Does OK Instruments provide calibration certificates traceable to national metrology institutes?
Each unit ships with a factory calibration report traceable to CNAS-accredited laboratories; optional UKAS or DAkkS-certified recalibration services are available upon request.
Can the OK-ES-3.00000 perform transient shock testing per ISO 10326-1?
Yes—when driven by compatible waveform generators, it reproduces half-sine, trapezoidal, and sawtooth shock pulses with rise times down to 2 ms and peak accelerations up to 10 g.
What maintenance intervals are recommended for sustained operation?
Routine inspection of voice coil alignment and cooling airflow is advised every 500 operational hours; full preventive maintenance—including bearing lubrication and amplifier capacitor health check—is scheduled at 2,000-hour intervals.
