MTS SWIFT 30 Sensor - Manual (Page 17)

Non-spinning Applications (Simulation Lab)
SWIFT 30 Sensors Hardware Overview 17
Non-spinning Applications (Simulation Lab)
The SWIFT sensor can be fully integrated into the simulation process, since it is
an optimal feedback transducer for use with MTS Remote Parameter Control
®
(RPC ® ) software. The transducer takes data at points where fixturing inputs are
located rather than at traditional instrumentation points along the vehicle’s
suspension. Using the SWIFT sensor saves you instrumentation time, and fewer
iterations are required to achieve good simulation accuracy.
Measuring spindle loads allows engineers to generate generic road profiles.
Generic road profiles are portable across various vehicle models, do not require
new test track load measurements for each vehicle, and eliminate additional
RLDA tasks.
Four of the six loads measured by the transducer directly correlate to the MTS
Model 329 Road Simulator inputs: vertical force, longitudinal force, lateral force,
and braking input.
The same transducers used to collect road data at the test track can be mounted
directly in the wheel adapters of the MTS Model 329 Road Simulator. For
durability testing, an aluminum SWIFT sensor can be used for iterations within
the RPC process. The aluminum SWIFT sensor should then be removed for the
durability cycles, to preserve its fatigue life. It can be replaced by an adapter
plate, available from MTS, to duplicate the mass and center of gravity of the
actual SWIFT sensor. If a SWIFT sensor is to be used during full durability tests,
we suggest using the titanium model, which has a higher fatigue rating.
In a typical non-spinning application, a SWIFT sensor is mounted on a road
simulation test fixture, as shown in the following figure.
Non-spinning Application (Laboratory Simulation)
12 Vdc Power Supply
(with 4 connections)
Customer Supplied
Data Recorder
Transducer Interface
(TI)
Transducer Signals
Output
Signals
PC
Communication
S20-27