LMS Test.Lab Environmental
LMS Test.Lab Environmental
High-speed, multi-channel vibration control
and data reduction systems
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LMS Test.Lab Environmental
LMS Test.Lab Environmental
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LMS Test.Lab Environmental
High-speed, multi-channel vibration control and data reduction systems
LMS Test.Lab Environmental provides a powerful, high-speed multi-channel vibration control system, certified for spacecraft
testing. The vibration control systems can be expanded to hundreds of control, measurement and limiting channels. Users
will find it easy to use for routine random, shock, sine, and combined modes testing and have everything they need for stateof-the-art control and extensive data analysis.
Environmental testing for aerospace
LMS Test.Lab Environmental delivers a
complete solution for qualification and
acceptance testing on large and fragile
structures such as spacecrafts, satellites, and
system prototypes. It is designed for parallel
acquisition and online reduction of vibration
channels during random or sine closed-loop
vibration control testing, in reverberant
rooms, or for high frequency transient
capture in deployment testing.
LMS Test.Lab Environmental consists of two
product lines: LMS Test.Lab Environmental
Control and LMS Test.Lab Environmental
Data Reduction. LMS Test.Lab Environmental
Control conducts qualification tests on
structures in closed loop, and LMS Test.Lab
Environmental Data Reduction is dedicated
to design validation by complementing the
vibration control system with additional
measurement channels, decoupled from the
closed-loop control system. Both product
lines optimize and increase qualification and
acceptance test productivity. The same LMS
hardware and software environment can also
be used to conduct modal survey tests (MST)
in order to correlate and update FE models.
each test, real-time animation on a geometry,
based on measured data, provides a quick
test execution check.
Safety is the primary objective
Full test object protection
LMS Test.Lab Environmental protects the
integrity of the tested structure throughout
the entire procedure. Real-time control is
maintained as the channel count increases.
Many safety features are built into the
hardware and software to ensure a reliable
control loop: from comprehensive pre-test
checks, response limiting and notching on
any number of channels, to a controlled
shutdown if limits are exceeded.
The entire measurement chain is continuously
monitored during testing for open or short
circuits. Overload checks are carried out in
several places of the signal paths, including
up-front, full bandwidth checks on anti-alias
filters. Dedicated hardware circuits guarantee
smooth shutdown of output signals, even
in case of power failure. During closed-loop
control RMS and line-by-line abort checking,
the system performs single or multi-point
control, drive limitation, sigma clipping,
as well as continuous open channel and
overload checks. Fast loop times ensure a
reliable control loop.
Productivity and convenience
As the solution is designed for maximum
productivity, users can arbitrarily map
physical inputs to define control,
measurement and monitoring channels; recall
calibration values from a database; monitor
what they want as the test proceeds and
batch plot results with a single click. After
Safe, fast and accurate control
LMS Test.Lab Environmental supports
random, swept sine, tracked sine dwell,
shock, waveform replay and combined test
The LMS Test.Lab Environmental software is designed to work with the LMS SCADAS III controller hardware system that
incorporates 24-bit ADC and DAC technology. This tight integration guarantees maximum safety.
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Test expensive, unique objects in full safety and confidence
Increase productivity using the convenient and easy workflow
Test according to a large variety of scenarios, including MIL-STD 810
Keep control over measurements and independently perform parallel measurements in the control loop
Validate prototypes in support of design and development
LMS Test.Lab Environmental
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modes for single-input control. It integrates
all common industry standards for vibration
and shock testing. Highly flexible, the system
supports non-standard test specifications
and offers an accurate reproduction of target
reference spectra on a shaker. LMS Test.Lab
Triax MIMO Random Control provides multiple
input random control on decoupled shaker
setups.
Predefined workflow for optimal
productivity
Smart test routines and the intuitive user
interface of LMS Test.Lab Environmental
deliver optimal productivity throughout the
testing cycle. Operators follow a workflow
defined by the supervisor, which includes
overall guidelines, predefined transducer
sets, online processing and reporting, as
well as a set reference profile and control
strategy. Users are in control at all times;
they can measure as many parallel channels
as needed to monitor the structure at all
LMS International | info@lmsintl.com | www.lmsintl.com
sensitive points. Setup procedures use a
spreadsheet-like interface to facilitate the
entry of repetitive values.
only system, but on an acquisition-only
system. The overall measurement capacity is
extended even further.
High performance closed loop control
Flexible analysis and effective
communication
The most distinctive feature of the new
system is its speed – real-time control is
maintained for up to a 100 channels at a
control bandwidth of up to 20kHz. All LMS
SCADAS III signal conditioning modules
are supported, so control is possible from
accelerometers. Channel mapping gives
users the flexibility to use front-ends more
efficiently and choose which channels to use
for control and measurement.
Online data reduction
For those cases in which testing requires
even more channels, the vibration
control system can be extended with an
online reduction system using the same
measurement algorithms as the vibration-
LMS Test.Lab Environmental offers analysis
tools for the most demanding test campaigns.
With intuitive data navigation, a user
attribute-based search functionality, and
comprehensive analysis functions, users can
easily visualize and interpret test data. The
solution automatically generates reports
with a single mouse click. Full compatibility
with Microsoft Office and embedded support
of OLE/ActiveX technologies turns static
reports into dynamic information files.
Readers can adapt axis scaling, add cursors
and change legends to create their own
customized view. LMS Test.Lab Environmental
helps testing teams effectively visualize,
analyze, report, and share their work with
others.
LMS Test.Lab Environmental
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LMS Test.Lab MIL-STD Testing
LMS Test.Lab MIL-STD Testing provides a complete solution for military standards
(MIL-STD, GAM-EG.13) qualification testing on structures, using a shaker installation
in a closed loop fashion. The solution supports swept sine, random, shock, SRS,
combined modes and time replay-based qualification. In every qualification test phase
and control mode, the system offers a wealth of safety precautions to protect the test
article and test area.
Test result documentation is key. A fully automatic logging mechanism makes reporting
easy and complete. Automatic setup and test data archiving, transducer annotation on
stored spectra, visually appealing formatting of run event log files and digital picture
support are some examples. All information is available in a very intuitive browser tree
so that a first draft can be drawn up by anyone. The LMS Test.Lab Random, Sine, Shock
and Single Axis Waveform Replication Control applications support safe, accurate and
productive component qualification testing. All applications have been designed with
long duration, multiple-operator shift testing in mind.
Safe qualification testing for the toughest
requirements: MIL-STD
The modularly organized solution helps users mix and match sweeping and fixed sine
tones and narrowband in all possible ways so they can set up the most demanding
combined modes tests imaginable.
For SRS testing, LMS Test.Lab Shock Response Synthesis supports damped sine or
wavelet use to create a target time history that complies with the target SRS. A fully
automated process provides a default waveform. If the waveform violates shaker
limits, individual parameters can be modified in a fully interactive optimization process.
A multi-level undo/re-do buffer helps users evaluate different parameter changes,
while viewing the resulting waveform, refreshed with every alteration. Each updated
waveform is checked against shaker performance limits. This means that tests with
higher SRS levels can be run on the existing installation.
For precise replication of operational loads, LMS Test.Lab Single Axis Waveform
Replication provides measured signal replay directly on the shaker. It extends current
testing techniques from classical sine, tracked sine, random and shock control to longduration time waveform replication.
Well-organized sheet for test progress monitoring,
combining general test status information views with
online graphics.
To support the test tailoring approach as described in LMS Test.Lab MIL-STD, LMS
Test.Lab Mission Synthesis defines test specifications for single axis random and
swept sine vibration testing from measured load data. Resulting test specifications are
equal in damage and are accelerated because of faster run times. Multiple acceleration
loading environments are analyzed for fatigue potential by calculating MRS (maximum
response spectrum) and FDS (fatigue damage spectrum).
Features
Benefits
• Swept sine control
• Random control
• Shock control (classical pulse, measured
pulse and shock response analysis)
• Single axis waveform replication
• Shock response synthesis
• Combined modes
• Mission synthesis (optional)
• Adapted for military standard testing
• Complete and flexible combined
modes implementation
• World-class SRS implementation
on your shaker installation
Full flexibility in sine on random setup, fixed and
sweeping sine tones with individual burst schedule.
Accurate reproduction of measured transient events on a
shaker.
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LMS Test.Lab Environmental
LMS International | info@lmsintl.com | www.lmsintl.com
LMS Test.Lab Space Application Testing
LMS Test.Lab Space Application Testing is a complete system for closed-loop vibration
control for random, sine and shock test modes. The system provides safe, accurate
and fast reproduction of the target qualification reference profiles. Any channel that
is not used for control can be used as an auxiliary measurement channel or responselimiting channel for test item protection. The channels support ICP transducers or any
voltage signal.
Features
• Swept sine control with sine notching
• Random control with random
response limiting
• Shock control (classical pulse, measured
pulse and shock response analysis)
The channel setup definition sheet is designed to support high channel counts and
features ODBC and MS Excel interoperability (for instance for transducer information),
copy-and-paste functions for all related tables, and a built-in status check. This results
in a fast yet safe channel setup definition phase. Extensive pre-test verification is
provided by the self-check module, which offers a built-in digital scope function, and
performs all pre-test diagnostics.
During the test, control algorithms provide accurate control and an extensive set of
specimen protection measures. Online monitoring is easy, with control loop status
parameters, bar graphs of the channel levels and a 1/2/4/8/16 display layout to
browse through all channels. Custom monitoring display layouts can be configured and
saved to the setup files for specific test monitoring requirements.
After the test, plots are obtained with just one click, including fully automatic batch
plotting with peak cursor annotation. The built-in logging mechanism makes reporting
easy and complete.
Spacecraft undergoing vibration testing.
Sine notching: from simple single point notching to
multi-point specimen protection.
SelfCheck ensures absolute test safety, validating the
end-to-end chain during low excitation pre-test.
Fully annotated plots with automatic peak cursors: the
plotting speed is 3 pages per second.
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Benefits
• Maximum safety during large test
campaigns: channel-count independent
performance and extensive support
of setup definition phase
• Maximum confidence in the test data
thanks to extensive and fully automatic
test results and event logging
• Maximum efficiency with easy,
automatic data management
LMS Test.Lab Environmental
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LMS Test.Lab MIMO Triax Random Control
LMS Test.Lab MIMO Triax Random Control is a user-friendly solution for the complete
closed-loop multi-shaker control process. The system implements a reliable, fast, and
accurate control algorithm.
LMS Test.Lab MIMO Triax Random Control is capable of running up to 3 DACs and
an unlimited number of measurement channels simultaneously for MIMO closedloop random control. It includes all necessary features to define and control a
random excitation that matches a predefined PSD profile on different measurements
points using multiple shakers. Using phase control, cross-coupling compensation
and adaptive control, based on the Smallwood algorithm, LMS Test.Lab MIMO Triax
Random Control is capable of controlling decoupled XYZ MIMO shaker table setups.
The control package guides you through a sequence of well-defined tasks. Each task
is embedded in a dedicated application worksheet: from test documentation, through
channel and control parameters setup, MIMO-SelfCheck to the actual control loop.
After the test, the Batch Printing worksheet helps you report in a fully automatic, yet
user-definable way. An extra worksheet provides visualization and easy navigation
through the complete database. Each worksheet exceeds today’s standards in
usability, minimizes operator errors and guarantees high quality data. It provides
those facilities you need for productively qualifying test subjects on a multi-shaker
installation while gaining engineering insight in its dynamics. It helps online acquisition
and visualization of both proof-of-qualification and valuable engineering data.
Electronic reporting is integrated into the solution: the displays into which you dragged
and dropped data can be embedded in a report. Displays can be saved as Active
Pictures and edited and modified directly in the reporting application. The data is
seamlessly compatible with all LMS post-test analysis packages, which are optionally
available to expand your application with extra sheets. Data export in multiple formats
is possible.
The software is a user-friendly solution for the
complete closed-loop multi-shaker control process.
Real-time adaptive control loop for decoupled XYZ
MIMO shaker table setups.
MIMO SelfCheck safety features: drive limitations and
checks on individual channel RMS levels.
MIMO SelfCheck with safety features: system
identification and verification.
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LMS Test.Lab Environmental
Features
• MIMO random control setup
• MIMO random control loop (real-time
adaptive control loop for decoupled
XYZ MIMO shaker table setups)
• MIMO SelfCheck with extensive
safety features: system identification
and verification, drive limitations
and safety checks on overall RMS
level of individual channels
• MIMO measurements on all channels,
online interactions during test sequence
Benefits
• Safe, real-time closed-loop
control and monitoring
• Fast, easy and trouble-free setup definition
• Fast data interpretation and analysis
with online viewing of PSD, crosspower
(with phase) and coherences
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LMS Test.Lab Data Reduction Premium
LMS Test.Lab Data Reduction Premium delivers a complete solution for qualification
and acceptance testing on large and fragile structures such as spacecrafts and
satellites. It is designed for parallel acquisition and online reduction of vibration and
microphone channels during random or sine closed-loop vibration control testing,
in reverberant rooms, or for high frequency transient capture in the context of
deployment testing.
The system is optimized for online reduction of high-channel count tests, with an
automatic level and frequency synchronization with the control system. All relevant
functions are calculated online and in parallel. All modes also support a ‘back-up tape
recorder’ function, streaming all raw time data directly to the host disk in parallel to
the online calculations (standard in transient capture, optional in random and sine
modes).
Features
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Online random and acoustic reduction
Online sine reduction
Transient capture
Parallel time recording in all
measurement modes
Online spectrum measurements
in all modes
Productive batch printing with
automatic peak cursors
Data available for post-test
analysis immediately after test
Integrated high-channel count
online reduction capability
This solution provides batch plotting with automatic peak cursors of all test data
immediately after the test, including a various post-test analysis capabilities. The
system is optionally expandable to hundreds of channels.
Benefits
• High performance independent
from channel count
• Extensive support features during
the setup definition phase
• Full and automatic test logging
• Increased efficiency with easy and
automatic data management
Efficient high channel count test monitoring using
networking technology.
Streaming all raw time data directly to the host disk in
parallel to the online calculations.
Online random and acoustic reduction.
Online sine reduction.
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LMS Test.Lab Environmental
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LMS Test.Lab Environmental – Control options
LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting
LMS Test.Lab Sine Notching and LMS Test.Lab Random Response Limiting help users effectively
protect test items against over-testing. While the average control signal level matches its
reference spectrum, the test object response at particular points may greatly differ, due to
resonances during the testing phase. The vibration level at any channel (control or measurement)
is limited by an auxiliary reference profile for maximum protection of the test item.
Combined modes
The LMS Test.Lab Sine on Random (SoR) module offers the possibility to define a background
noise level combined with up to ten fixed and sweeping sine tones. The LMS Test.Lab Random on
Random (RoR) option offers the possibility to define a background noise level combined with an
unlimited number of fixed and sweeping narrow-band signals. Both options in combination with
LMS Test.Lab Random Control provide complex profile definition, typically called Sine on Random
on Random (SoRoR).
LMS Test.Lab Shock Response Synthesis
LMS Test.Lab Shock Response Synthesis synthesizes a time waveform that corresponds to a
user-defined shock response using a series of superimposed wavelets, a series of superimposed
damped sine or a chirp sine. The synthesis module is seamlessly integrated into the shock
control application.
LMS Test.Lab Mission Synthesis
LMS Test.Lab Mission Synthesis helps define test specifications for single axis random and
swept sine vibration testing from measured load data. Resulting test specifications are equal in
damage and are accelerated for faster run times. Test tailoring methods as described in industry
standards such as GAM EG-13, MIL-STD 810F and NATO AECTP 200 are used for this purpose.
Multiple acceleration loading environments (defined in either time or frequency domain) are
analyzed for fatigue potential by calculating MRS (maximum response spectrum) and FDS (fatigue
damage spectrum).
LMS Test.Lab MIMO Triax Random Control – 3x3 configuration
LMS Test.Lab MIMO Triax Random Control is capable of running up to 3 DACs and an unlimited
number of measurement channels simultaneously for MIMO closed-loop random control.
It includes all necessary features to define and control a random excitation that matches a
predefined PSD profile on different measurements points using multiple shakers. Phase control,
cross-coupling compensation and adaptive control are based on the Smallwood algorithm for
decoupled XYZ MIMO shaker table setups.
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LMS Test.Lab Environmental
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LMS Test.Lab Test Sequencing
LMS Test.Lab Test Sequencing defines and executes a series of closed-loop vibration control
tests. For a smooth and unattended batch execution, the application supports mixing all test
modes (swept sine, random and shock), do-loops, pause commands and a variety of SelfCheck
options. In addition, it is possible to automatically run the MS Windows program as part of the
schedule. This can be used to control other equipment in the lab, synchronize vibration testing
with functional or climatic testing, or keep the operator up-to-date on the progress of the test
sequence by email.
LMS Test.Lab Tracked Sine Dwell and LMS Test.Lab Time Recording during Sine and
Tracked Sine Dwell Control
The LMS Test.Lab Tracked Sine Dwell module excites the structure at a fixed frequency, or at a
resonance frequency with frequency tracking. Abort criteria in both control and response levels
and frequency range abort in case of tracking dwell are foreseen. Arbitrary sequences of dwell
frequencies can be easily defined using the resonance identification tool. LMS Test.Lab Time
Recording during Sine and Tracked Sine Dwell Control acquires fixed sampled gapless time data
in parallel with a sine or tracked sine dwell control test. The user can select the sample rate for
this parallel recording by specifying the desired amount of over-sampling with respect to the
maximum sweep frequency. The recorded time data can be further processed using all postprocessing products that support this format.
LMS Test.Lab Single Axis Waveform Replication
LMS Test.Lab Single Axis Waveform Replication gets field data to the shaker in fewer steps and
extends current testing techniques from classical sine, tracked sine, random and shock control to
long-duration time waveform replication. The easy-to-use, native MS Windows software requires
little training and helps operators automate very long duration tests with full security. The
workflow-based user interface of LMS Test.Lab assists the user throughout the complete test.
LMS Test.Lab Off-line Sine Reduction
LMS Test.Lab Off-line Sine Reduction analyzes the response of a structure at different points to a
controlled sine excitation. Throughput data are streamed to disc during the online sine reduction
application and can be re-analyzed off-line. A COLA (consistant output level adaptor) channel is
required to accurately determine sine excitation frequency.
LMS Test.Lab Environmental – Analysis options
Dedicated noise and vibration analysis add-ins are easily activated and become an integral part
of LMS Test.Lab Environmental extending the system for MST (modal survey tests) applications.
3D visualization of measurement results for structural analysis (operational deflection shapes,
time animation) or access to any other LMS Test.Lab analysis module is only one click away. This
eliminates tedious data exports to more advanced analysis applications, such as LMS Test.Lab
Geometry and LMS Test.Lab Operational Deflection Shape and Time Animation, LMS Test.Lab
Modal Analysis and LMS Test.Lab Operational Modal Analysis, LMS Test.Lab Run Data Averaging
and Comparison Organizer.
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LMS Test.Lab Environmental
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With a unique combination of 1D and 3D simulation
software, testing systems and engineering services,
LMS tunes into mission critical engineering
attributes, ranging from system dynamics,
structural integrity and sound quality to durability,
safety and power consumption. With multi-domain
solutions for thermal, fluid dynamics, electrical and
mechanical system behavior, LMS can address the
complex engineering challenges associated with
intelligent system design.
LMS INTERNATIONAL
Researchpark Z1, Interleuvenlaan 68
B-3001 Leuven [Belgium]
T +32 16 384 200 | F +32 16 384 350
info@lmsintl.com | www.lmsintl.com
Worldwide
For the address of your local representative,
please visit www.lmsintl.com/lmsworldwide
Thanks to our technology and dedicated people,
LMS has become the partner of choice of more
than 5,000 leading manufacturing companies
worldwide. LMS is certified to ISO9001:2008
quality standards and operates through a network
of subsidiaries and representatives in key locations
around the world. For more information on LMS,
visit www.lmsintl.com.
LMS International, LMS Test.Lab, LMS Virtual.Lab, LMS Test.Xpress, LMS Imagine.Lab AMESim, LMS FALANCS,
LMS SYSNOISE, LMS DADS, LMS Tec.Manager, LMS CADA-X, LMS Test.Lab Mobile, LMS PolyMAX, LMS SCADAS III,
LMS SCADAS Mobile, LMS SCADAS Recorder, LMS TecWare, LMS TWR, LMS Gateway and LMS OPTIMUS are
registered trademarks of LMS International. All other trademarks acknowledged.
LMS is an engineering innovation partner for
companies in the automotive, aerospace and
other advanced manufacturing industries. With
30 years of experience, LMS helps customers get
better products to market faster and turn superior
process efficiency into key competitive advantages.