Model 813 Four Square Test Systems
For Realtime Simulation Testing of
Automotive Shafts and Joints
Simulate Service Life With Proven
MTS Four Square Technology
Benefits
Provides torque, speed, jounce,
and steer motion
Tests halfshafts, driveshafts,
and joints
Energy efficient way of testing
multiple specimens
Environmental simulation is
available as an option
Speeds up to 6000 rpm
Compact design saves floor
space
Torsional hydraulic actuator
integrated into gear box
You can perform meaningful life testing
on automotive driveshafts, halfshafts, and
joints with proven MTS Four Square test
systems. The MTS Four Square technology meets today’s need for accurate simulation of service conditions in testing vital
drivetrain components.
By applying our own method of torque
control to four square systems, MTS offers
a tool that provides superior simulation
or block cycle testing. MTS four square
systems are capable of simulation of
torque, speed, jounce, and steer motion.
And they do it with a system that is an
efficient way to test multiple specimens.
They are arranged in an endless loop so
that torque is reacted from one specimen
to the next.
Thus, the MTS Four Square method provides testing of four specimens at once
with a spinning rotary actuator under
servohydraulic control built into the gearboxes to control torque. Drive motors
under each gear box control speed and
make up lost energy to provide uniform
loading to all the test specimens.
Uniform loading is maintained by the
system even if the specimen yields or
otherwise changes dimensions. This
m
allows the Four Square system to maintain its regenerative characteristics and
real life simulation advantages.
Optional environmental chambers are
available for temperature control or application of salt, mud, or slurry sprays.
Facility Requirements
A variety of footprints are available,
depending on specimen length. For
example, a system intended to test rear
wheel drive prop shafts would require a
tee-slotted bedplate two meters wide by
six meters long. A variety of configurations are available.
Bedplates can rest on rubber isolation
pads or be anchored with grouting to a
concrete floor. They do not require a
seismic mass.
A water-to-oil heat exchanger for the
gearbox lubrication system requires an
adequate water supply to remove a maximum heat load of 14 kW.
Electrical power requirements include
115V, 20Amp single phase power for
electronic controls and three phase 120
kVA three phase power for motors.
Hydraulic power requirements vary with
test type. Simulation-type systems require
75 gpm at 3000 psi. Block cycle tests
require 20 gpm capacity at 3000 psi.
Specifications
813 Standard Block-Cycle System
Parameter
813.42B
813.43B
Torque (Nm / lbf-in.)
2000 / 17700
3000 / 26500
Speed (rpm)
3000
3000
Jounce Disp (mm / in.)
350 / 13.8
350 / 13.8
No. of MTS Torque Cells
2
2
No. of Spinning Torsion Actuators
1
1
Environmental Control
Joint Temperature Cooling
and Measurement
Joint Temperature Cooling
and Measurement
Parameter
813.42R
813.43R
Torque (Nm / lbf-in.)
2000 / 17700
3000 / 26500
Speed (rpm)
3000
3000
Jounce Disp (mm / inch)
350 / 13.8
350 / 13.8
No. of MTS Torque Cells
4
4
No. of Spinning Torsion Actuators
2
2
Environmental Control
Joint Temperature Cooling
and Measurement
Joint Temperature Cooling
and Measurement
Parameter
813.42B/R
813.43B/R
Speed (rpm)
6000
6000
Plunge Disp (mm / inch)
30 / 1.2
30 / 1.2
Steer Angle (degrees)
50
50
No. of Torque Cells (813.4XB)
4
4
No. of Torsion Actuators (813.4XB)
2
2
Environmental Control
Salt and Mud Chambers
Salt and Mud Chambers
813 Standard Realtime System
Options to 813 Test Systems
For More Information
If you would like to know more about
MTS Four Square systems, we invite you
to contact us for a technical discussion.
Contact your local MTS field sales engineer. Or, you can reach the drivetrain
testing group of the Vehicle Dynamics
Division of MTS by phone, fax, or e-mail
([email protected]).
MTS Systems Corporation
14000 Technology Drive
Eden Prairie, Minnesota 55344-2290 USA
Toll Free: 800·328·2255
Phone: 952·937·4000
Fax: 952·937·4515
E-mail: [email protected]
www.mts.com
ISO 9001 CERTIFIED QMS
Specifications subject to change without notice.
MTS is a registered trademark of MTS
Systems Corporation.
© 2000 MTS Systems Corporation.
100-028-788 FourSq-01 Printed in U.S.A. 2/00