Equipment
Model 3900 NVH Squeal Rig Dynamometer
Overview
The Model 3900 NVH Squeal Rig (Model 3900-SR) is a full-sized test machine solely designed for brake noise testing on automotive and light truck applications up to 5,650 Nm. This state-of-the-art machine incorporates a specially designed AC motor that delivers precise high torque drag capability required for NVH brake testing. The unique feature of the Model 3900-SR is its single fixed inertia disc, relying exclusively on inertia simulation and requiring no technician disc change-outs.
Fixture style is a vehicle suspension system or knuckle type and is located within a climatic controlled acoustic free field chamber. The Model 3900-SR has one purpose in mind, to pinpoint the source of brake noise and eliminate it through successful design enhancement testing.
Key Benefits
- Latest technology software and controls
- Proven components with low maintenance
- Controls and power cabinet Integrated onto machine
- Isolated test fixture from any machine vibrations
- Large test enclosure with free field properties
- In-line rotating torque sensor
- Suspension test fixtures
- Knuckle test fixtures
- Safety interlocks on all guard doors
- Compact pedestal workstation
- Calibration fixture for torque
- Video monitoring camera
Key Features
- Tabular step-by-step test script generation
- Customizable graphical data review software (RevDataPlus)
- Automated reporting tools through MS-Excel
- High accuracy electric inertia simulation (I-Sim)
- Servo brake profile control
- Precision sensors for measurement: noise, vibration, shaft speed, torque, pressure, fluid displacement, brake temperature, cooling air speed, air temperature, humidity
- Integrated solutions provided by auxiliary systems (DTV measurement, water spray, etc.)
- Power brake bleed system
- Environmental conditioning capabilities
- Duct silencers
- NVH measurement system
- AC Motor (brushless system technology)
