03 three-axis test table newsletter - acutronic test table 04_large torque simulator 07_acutronic...
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03_Three-Axis Test Table
04_Large Torque Simulator
07_ACUTRONIC Olten expanding
Issue 11_May 2007
Newsletter
Astronaut working on International Space Station
ACUTRONIC USA, Inc. has designed,
manufactured, and is currently testing a
Model AC371-1 Three-Axis Motion Simula-
tor designed to test and evaluate missile
systems and their components for Lock-
heed Martin. This “turn-key” Three-Axis
Motion Simulator includes a three-axis
ACUTRONIC USA Designs\ Manufactures a Three-Axis HWIL Motion SimulatorPaul Hollinger, ACUTRONIC USA
ACUTRONIC USA has manufactured a Three-Axis Missile Motion Simulator (TAMMS) which maintains payload orienta-tions with a maximum composite error of 50 micro radians.
Editorial
Dear reader
Many of the past newsletters – and its
editorials – were marked by traditional
themes such as process reengineer-
ing programs, customer orientation
activities or quality management. All
these topics marked the milestones of
a growing company. Being the leader
in our market, we will now enter new
areas to continue our path for growth.
The question remains how a highly
specialized company as ACUTRONIC
can grow. With its strong technology
skills, a capability based strategy ap-
proach is the path to go. Currently
we explore ways to enter into new
markets and applications based on
our existing capabilities. We will keep
you updated.
Thomas W Jung
Group CEO ACUTRONIC
Continued on page 02
simulator, drive power amplifi er consoles,
simulator control console containing an
ACUTROL 3000 motion controller, and a
SCRAMNet high speed refl ective memory
remote interface along with system instal-
Source: NASA, National Aeronautics and Space Administration
02Projects
lation, integration, and startup at Lockheed
Martin’s facility. The Hardware-in-the-loop
Simulation System will enable Lockheed
Martin to simulate realistic engagement
scenarios. Key features and performance
specifi cations for the Model AC371-1 are
as follows:
■ Designed for large payloads; up to 12-
inch diameter, 47-inch aft dimension, and
250 lbs.
■ The Three-Axis Motion Simulator is de-
signed to produce and maintain Payload
Orientations with a maximum composite
error of 50 micro radians (10.3 arc se-
conds).
■ Controlled by the truly digital ACUTROL
3000 servo system with SCRAMNet shared
memory interface for real time Hardware-
in-the-loop (HWIL) simulations.
■ AC brushless servomotors drive all three
axes with the Pitch axis peak torque being
greater than 55,000 ft-lbs (74,580 N-M). ]
For further information please contact:
Paul Hollinger
ACUTRONIC USA Inc.
640 Alpha Drive
Pittsburgh, PA 15238
Phone: 412-963-9400
www.acutronic.com
Model AC371-1
Three-Axis Missile Motion Simulator
Performance Specifi cations Roll Yaw Pitch
Displacement, deg Continuous ± 50 ± 45
Position accuracy, 0 to peak, arc-sec 2 2 2
Rate, maximum, deg/sec 1,440 400 400
Acceleration, deg/sec2 15,000 6,000 6,000
Frequency Response, Hz (with 100 lb. payload) 35 35 35
Continuation cover story
03Customers
ACUTRONIC USA, Inc. Delivers Three-Axis Test Table Frank Davis, Project Manager ACUTRONIC USA
ACUTRONIC USA delivers the Three-Axis Rotational Simulator (TARS) to the NASA Johnson Space Center for development of the International Space Station Rate Gyro.
ACUTRONIC USA was selected in March
2006 to provide a Model BD357 Three-Axis
Test Table to the NASA Johnson Space
Center in Houston, TX.
Three-Axis Rotational Simulator (TARS)
The Series BD357 is a standard
ACUTRONIC test table designed for auto-
mated production testing and calibration of
inertial navigation systems. All three axes
are servo controlled with the ACUTROL3000
digital motion controller to provide preci-
sion position, rate and acceleration motion.
The drives feature excellent rate stability
and accurate positioning achieved with a
resolver/Inductosyn transducer package.
This BD357 was successfully
delivered and installed on schedule in
December 2006 to the Sonny Carter Training
Center facility. The table will be utilized as
an engineering instrument to simulate the
motion of the International Space Station
(ISS) for further development of the ISS’s
rate gyro assembly. The new table comple-
ments a Model 357L Three-Axis Test Table
delivered to NASA Johnson Space Center
by ACUTRONIC USA in 1996. ]
Standard Series BD357 Specifi cations
Test Table Dimensions w Temp. Chamber w/o Temp. Chamber
■ Table top diameter, in (mm) 28 (711) 32 (813)■ Table top height (from fl oor), in (mm) 66 (1676) 63 (1600)■ Table top hole pattern 1/4-20 threaded holes on 2 in grid■ Overall dimensions, in (mm) 105 (2667) Dia�118 (2997) H 93 (2362) Dia�105 (2667) H
Unit Under Test (UUT)
■ Maximum Weight, lbs (kg) 110 (50) 110 (50)■ Dimensions, max, in (mm), (Dia�H) 24 (610)�15 (381) 28 (711)�20 (508)■ Sliprings (optional) 85 lines for customer use, 80 @ 3 amp, 5 @ 5 amp
Performance Specifi cations Outer Axis Middle Axis Inner Axis
■ Rotational Freedom, deg
– without sliprings +/– 185 +/– 185 +/– 185 – with sliprings (optional) unlimited unlimited unlimited■ Position
– Accuracy, arc-sec RSS 1 1 1 – Resolution, deg 0.00001 0.00001 0.00001 – Repeatability, arc-sec < 1 < 1 < 1■ Rate
– Maximum, deg/sec +/– 100 +/– 100 +/– 100 – with sliprings (optional) +/– 300 +/– 300 +/– 1000 – Resolution, deg/sec 0.00001 0.00001 0.00001 – Stability, % – over 360 deg; unlimited rotation 0.001 0.001 0.001 – over 10 deg; limited rotation 0.01 0.01 0.01 – Accuracy, % – over 360 deg; unlimited rotation 0.001 0.001 0.001 – over 10 deg; limited rotation 0.01 0.01 0.01■ Wobble, arc-sec +/–5 +/–5 +/–5■ Orthogonality, arc-sec 3 3■ Peak acceleration, deg/sec2 (no test load) with temp. chamber (28 inch table top) 100 200 700
Temperature Chamber (optional)
– Range, deg C – 55 to + 85– Stability, deg C +/– 1.0– Rate of change, deg C/minute– LN2 (or CO2) 5 (cooling and heating)
04Innovation
1998 2000 2002 2004 2006 2008
120
100
80
60
40
20
0
Year
Torq
ue (k
Nm
)
Figure 1: Increase of torque on the outer axis of FMS during the last 7 years. Orange line, double vane actuators and grey line single vane actuators.
Due to a close and cooperative partner-
ship with our large base of local suppliers
ACUTRONIC Olten is able to adapt to a
varying demand for production in a very
short time. After agreeing to a 12 month
delivery time for a new HWIL fl ight motion
simulator, the project was kept fully on track
and after only 10 months we are ready for
integration and subsequent factory ac-
ceptance test.
The total torque from the two single
vane hydraulic actuators on the horizontal
outer axis adds to more than 100 kNm. This
huge torque can accelerate the outer axis
which has an angular freedom of ±126°up
to 10,000 deg/s2 with the customers unit
under test (UUT). The main parameters
which determine the required torque on the
outer axis are the required acceleration of
the outer axis and the mass and offset of
the customers UUT.
Figure 1 shows the development
of the outer axis torque for FMS in recent
years. Note the continuous fi ve fold increase
in torque over the last 7 years. This increase
is not just correlated with acceleration
requirements because these only vary a
factor of two in this period. ]
Delivery of a Large Torque Flight Motion Simulator Dr. Michael Warden, CTO ACUTRONIC Switzerland Ltd
In order to comply with the increasing quest for higher dynamics and increased inertia of test units, a new Hardware-in-the-Loop (HWIL) fl ight motion simulator was designed and manufactured in Switzerland.
Hydraulic power unit with the two pumps shown on the right. The heat exhanger which keeps the oil at a constant temperature and accordingly at constant viscosity is visible on the left side.
05Innovation
Ready for integration in the production facility in Olten/Switzerland. The fi ne pressure equalizer lines run between the two motors in order to prevent distortion of the outer axis.
The accumulator required to buffer peak oil volume fl ows.Close-up view of the middle gimbel. A yellow 80 kg dummy load is mounted on the role axis and it has a large fi eld of view.
We wish all our new colleagues a good
start, success, enjoyment of their work
and of course, a long and successful
career at ACUTRONIC.
06Inside
Dominique E. Schinabeck
ACUTRONIC USA
At ACUTRONIC USA Inc. starting Feb-
ruary 1st 2007 Larry Zana will assume
the position of VP Marketing & Business
Development. Larry Zana has worked for
ACUTRONIC in the position of Head of
Instrumentation and Product Development
since 2002 contributing to the development
of the ACUTROL3000. Larry has a MS. in
Electrical Engineering from the University of
Pittsburgh. He has worked with marketing
on new business development at Redzone
Robotics and Westinghouse (commercial
and DoD contracts)
Larry also supported the implemen-
tation of the marketing strategy as Director
of Engineering at Cellomics.
Starting April 1st 2007 Frank Davis has
been promoted to the position of Manu-
facturing Manager. Frank Davis, a former
Carco Electronics employee, has worked
for ACUTRONIC since the acquisition of
Carco in February 2005 in the position of
Project Manager and Planning. Frank has a
BS in Mechanical Engineering Technology
from Penn State University.
We are excited to once again offer promising
internal career paths to our employees.
Thomas W. Jung
ACUTRONIC Switzerland
Also the Marketing & Sales team at ACU-
TRONIC Switzerland Ltd is being enhanced
by adding Beat F. Brunner as VP Marketing
& Business Development. This decision
stands in the context of the newly defi ned
corporate strategy where additional efforts
will be put into marketing and business
development. Beat Brunner joined the
company in April of 2007.
Beat Brunner, born in 1954, has
a MS. in Mechanical Engineering from the
Swiss Federal Institute of Technology in
Zurich. Beat Brunner brings a deep knowl-
edge of our industry along, as he joins us
from the leading Swiss Aeronautics and
Defence fi rm, Lucerne-based RUAG Aero-
space Inc. Before being promoted as Head
of Staff, Beat Brunner was General Manager
of the Business Unit Aerostructures. ACH is
Beat F. Brunner
Larry Zana
excited to have a “calibre” like Beat Brunner
on board who will not only complement the
existing team but also support the growth
plans of ACUTRONIC.
Roland Bischof has been appointed as
an Electrical Designer as of June 1, 2007.
Roland Bischof is an experienced profes-
sional with large technical know-how. He
replaces Patrick Hutter who will be joining
the Service Team as a Service Engineer in
September 2007 after fi nishing his electrical
engineering studies.
Frank Davis
Roland Bischof
Growing ACUTRONIC We are happy to announce the following enhancement of the teams at both the Pittsburgh and Bubikon facilities.
The continuous strive for effi ciency, quality
and professionalism lead to the investment
decision in 2006 to signifi cantly upgrade
the manufacturing location of ACUTRONIC
Switzerland in Olten. January 2007, a
completely refurbished manufacturing and
integration site went into operation. The total
production area now sums up to 1,000 m2
and offers a separated space for assembly
and integration work of hydraulic fl ight mo-
tion simulators. Several new isolated piers
have been introduced to enable parallel fi nal
integration stations of motion simulation
systems. In addition, a new annex building
has been added offering space (a total of
200 m2) for offi ces as well as a generous
visitor area for customers during Factory
Acceptance Testing. ACUTRONIC Olten,
the center of competence for hydraulic
work as well as for mechanical and electri-
cal integration, welcomes you any time to
the wonderful town of Olten in the heart of
Switzerland. ]
1_Overview of the fi nal assembly area within the renewed factory hall
2_Inside view into the hall specially designated for hydraulic work
3_Outside perspective of the newly built offi ce and visitor building
07Inside
ACUTRONIC Olten expands its Production and Integration Facility Bruno Ackeret, Head of Production, ACUTRONIC Switzerland
ACUTRONIC Olten, the manufacturing unit of ACUTRONIC Switzerland, invested substantially into the expansion of its existing site with the goal to further increase process effi ciency and industrialization of its products.
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08Pinboard
1_Dr. Michael Warden, CTO 2_Robin Hauser, Control Design
ACUTRONIC Groupwww.acutronic.comA Member of Jung Technologies Holding AG
ACUTRONIC Schweiz AG
Techcenter SchwarzCH-8608 BubikonSwitzerlandphone +41 55 253 23 23fax +41 55 253 23 33offi [email protected]
ACUTRONIC USA Inc.
640 Alpha DrivePittsburgh, PA 15238USAphone +1 412 963 94 00fax +1 412 963 08 [email protected]
ImprintPublished byACUTRONIC Group
Concept & DesignYesway AG, Zürich
Print run2500 copies
05-412-070
ACUTRONIC Switzerland Ltd attended Job Fair at Hochschule Rapperswil (HSR)By Michael Warden and Robin Hauser
ACUTRONIC’s presence underlined our continuous engagement to offer internships and job opportuni-ties to well qualifi ed future engineers.
On November 8, 2006 ACUTRONIC at-
tended the annual job fair at the Hochschule
Rapperswil. Among others, the HSR offers
broad and extensive electrical and me-
chanical engineering programs. We remain
in constant contact with the professors and
their students to ensure a successful and
persistent cooperation. ]
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