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LMS Virtual.Lab Motion - Options
Options for the LMS Virtual.Lab Motion product line.
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All CAD interfaces import part and assembly data. • STEP Interface • IGES Interface • ProE Interface • CATIA V4 Interface • Native Unigraphics and generic ParaSolids (SolidWorks, SolidEdge) • Autodesk Inventor Interface*
* imports only part data
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An easy and efficient manner to integrate CATIA V5 Kinematics mechanisms in LMS Virtual.Lab Motion, users can transfer parts, joints and kinematic constraints with a single click of a button. After the transfer, dynamic force-producing items like tires, springs, and bushings can be added in LMS Virtual.Lab Motion. Users can easily enhance CATIA V5 Kinematics with the dynamic, inverse dynamic, preload and static analysis possibilities found in LMS Virtual.Lab Motion.
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Flexible Bodies increases multi-body model accuracy by considering component deformation and modal excitation during motion. The method combines multi-body simulation technology with Finite Element results, based on a set of modes from either Finite Element analysis (Craig-Bampton modes) or modal test measurements. A number of FEA interfaces for common FE solvers, such as Nastran, Ansys, Abaqus, Permas and I-DEAS, are provided within this product so that users can import modes calculated by the FE solver. The final results, including stress results, can be visualized as an animated total system.
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Optional with LMS Virtual.Lab Motion Flexible Bodies, this module provides more complex flexible body modeling capabilities. It drives the Nastran and Ansys FE solvers as well as provides various pre-processing and post-processing structural analysis capabilities. If the LMS Virtual.Lab Component Structural Analysis option or CATIA V5 GPS is available, users can automatically create a flexible body that uses Craig-Bampton modes, automatically substructure large complex flexible meshes such as stabilizer bars and model contact force associated with flexible bodies (also known as flexible contact).
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Component Structural Analysis is the finite element mesher and solver embedded in the LMS Virtual.Lab framework. The solver supports frequency and/or static linear elastic finite-element (FE) parts analysis to provide modal data for motion, durability, noise, vibration and handling modeling. It includes a rich set of boundary conditions, automatic meshing, and a fast FE solution to produce deformation, stress and strain data.
For long deformable parts like a car stabilizer bar, a new multi-beam representation has been developed that accounts for large non-linear deformations while solving faster than with classical flexible bodies.
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LMS Virtual.Lab Design Space Exploration employs a Design of Experiment (DOE) methodology to define an optimal experiment set in the design space. This lets users obtain as much information as possible with the highest accuracy for the least cost. DOE is commonly combined with Response Surface Modeling (RSM), which runs a continuous surface through the discrete data obtained from the DOE experiments. This way users can obtain more insight into how the design variables influence the specified result quantities.
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The LMS Virtual.Lab Motion Multi-Processing Batch Solver lets users remotely manage different LMS Virtual.Lab Motion solver jobs. This way, the system can be designed to maximize CPU capacity and licenses running multiple analyses on different machines, or queuing multiple analyses for a single machine. In addition, users can monitor the progress of all submitted batch jobs.
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LMS Virtual.Lab Motion Parallel Solving provides overall productivity and solving time gains by using different parallel processors. It distributes the various solver tasks over different processors to reduce the calculation time. This is especially useful when processing relatively large simulation models built in a modular fashion, such as tracked vehicles or chains and belts.
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This dedicated cable modeling solution lets users quickly define pulleys, guides, cable paths and cable properties. It automatically creates a discrete cable model including elements, such as stiffness, friction, and contact. The Cable Modeling Tool provides modeling scalability: cable properties can cover axial tension as well as bending and twist properties. Engineers can efficiently explore the effects of design changes on the parameterized LMS Virtual.Lab Motion model understanding and improving their cable system in light of dynamic transient behavior and loads prediction at the pulleys and guides.
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The Gears modeling interface automates system definition and simulation involving helical and spur gears as well as internal and external gear sets for automotive, ground vehicle or general machinery applications. The solution predicts a gear system’s dynamic behavior and component loads by modeling the variable contact stiffness of the gear meshing. With this information, engineers can see how gear system backlash and contact ratio spreads throughout a mechanical system. This is especially helpful when looking for the root cause of noise issues, such as gear rattle or gear whine.
Gear systems can be incorporated into larger system models to study system-level responses and to generate accurate load predictions.
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The LMS Virtual.Lab Motion Standard Engine groups numerous tools and features to create detailed engine simulation models in one user-friendly interface: The Powertrain Dynamic Simulator (PDS) Interface. This specialized yet easy-to-use tool provides users with a feature-rich, general-purpose environment to edit and create models. The tool includes all necessary modules like Crank Train, Valve Train, Helical Spring, Cam Generator, Cam Contact, Tachometer, Combustion, Hydraulic Lash Adjusters and much more.
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Piston Lubrication lets users analyze aligned and misaligned piston performance in a fluid film. Forces between the piston and cylinder wall are predicted and applied to each moving body. Oil film equations are used to predict non-linear pressure distribution and the forces acting on both bodies. Pressure distribution is determined in function of the clearance and its time derivative along with oil viscosity. Using this more detailed modeling method improves engine simulation and system-level load accuracy.
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Hydrodynamic Bearing permits users to analyze aligned and misaligned hydrodynamic fluid-film journal bearing performance. Common applications include journal bearings in an engine crank train, like the main journals, crank pin or wrist-pin journals. This module predicts highly non-linear oil film pressure distribution within the bearings. Forces and moments are determined to properly couple structural vibrations to the surrounding structures. Two algorithms are provided: an analytic-based impedance algorithm and a Finite Element-based algorithm.
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Like Hydrodynamic Bearing, Elasto-Hydrodynamic Bearing lets users analyze aligned and misaligned hydrodynamic fluid-film journal bearing performance. Common applications include journal bearings in an engine crank train, such as the main journals, crank pin, or wrist-pin journals. Elasto-Hydrodynamic Bearing solves highly non-linear oil film pressure distribution within the bearing. Forces and moments are determined to properly couple structural vibrations to the surrounding structures.
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The LMS Virtual.Lab Motion Chain and Belt Application is used to quickly create detailed chain and belt simulation models. The Powertrain Dynamic Simulator (PDS) Interface can be used to create models of discrete belt/pulley or chain/sprocket systems for further analysis within Virtual.Lab Motion. The Timing Belt module creates singular or multistage belt-drive system simulations. The Accessory Drive module creates models of discrete belt/pulley systems, including Goodyear Poly-V® automotive accessory belts. The Chain module creates discrete chain and sprocket simulations with roller chain links or inverted tooth links. The PDS Chain and Belts generated models are combined with Valvetrain, Cranktrain, and other powertrain subsystem models.
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LMS Virtual.Lab Motion Tracked Vehicle provides a convenient interface to simplify complex multi-part track modeling. The track material can be either a rubber or elastomer belt, or discrete metal link. The interface collects concise information to define track geometry, mass properties, stiffness and damping. Multiple bodies are created with appropriate stiffness, damping, and initial conditions. All required contact force features are also automatically created. Customers who need to study how a complex dynamic track system interacts with both the ground and the vehicle will find this an extremely powerful and useful tool.
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LMS Virtual.Lab Motion Suspension provides a dedicated, easy-to-use interface to model vehicle suspension. The interface guides the user through the suspension modeling and analysis process, starting from hard-point location importation and component and connection definition to dedicated post-processing capabilities from virtual test rig simulations. The user can start from a pre-defined suspension template as the initial model to significantly increase productivity.
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LMS Virtual.Lab Motion Vehicle Modeling gives chassis and suspension analysts a dedicated and easy-to-use interface to model vehicles for any kind of performance study: handling and steering, ride comfort, road noise and durability. It allows modular vehicle assembly using separate subsystems, such as suspensions, steering, braking, and driveline. Users can easily set up and post-process several standard vehicle maneuvers. Dedicated braking, steering and driveline modules are incorporated. The available library of predefined vehicle events, including ISO maneuvers, can be extended by any user-defined event. The car can driven through a kinematic driver (open-loop) or through a path following a control algorithm implemented in LMS Virtual.Lab Motion, known as a closed-loop.
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The IPG-DRIVER for LMS Virtual.Lab Motion adds the human factor to multi-body vehicle simulation. It simulates closed-loop maneuvers for vehicle dynamics performance tests under extremely realistic circumstances. Seamlessly integrated in LMS Virtual.Lab Motion, it is the industry-standard driver model, representing more than 15 years of development by IPG Automotive in Karlsruhe, Germany. Users can select a desired path, desired speed, and driving style. The IPG-DRIVER calculates gas, brake and clutch pedal positions, gearbox position and steering wheel input.
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Road Profile Interface is a convenient way to build a complex 3D road profile or surface that can be uneven. This new feature generates road surface geometry from 3 different file sources: spline curves, spline surfaces and the CDTire ROAD 2000 format. This last format supports actual digitized road from any possible proving ground. Streamlining the overall process, it connects the analytical road surface used by the solver with the visualized geometry.
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Standard Tire models tire forces between rotating wheels and the road. Three forces (lateral, longitudinal, and vertical) and three resulting moments are calculated based on the selected force relationship and then applied to the model wheels. Several tire forces can be incorporated in a single model, which can also include non-linear stiffness and damping, distributed contact, and advanced traction effects. Users can also edit the tireforce source code and add special force features. Standard Tire is compatible with the international standard, STI (Standard Tire Interface).
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TNO MF-Tire provides accurate full-vehicle ride and handling, comfort, and durability analysis for passenger cars, motorcycles, trucks and aircraft landing gear dynamic simulation. Extensively validated, TNO MF-Tire is Delft-Tyre’s 6.0 implementation of the world-standard Pacejka Magic Formula tire model. Based on a semi-empirical approach using laboratory and road measurements, it provides fast and robust tire-road contact force and moment simulation for steady-state and transient tire behavior.
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A high frequency extension of the TNO-MF-Tire, TNO MF-Swift tire models enable accurate full-vehicle ride and handling, comfort, and durability analysis for passenger cars, motorcycles, trucks and aircraft landing gear dynamic simulation. It adds generic 3D obstacle enveloping and tire belt dynamics to MF-Tire’s tire-road contact force and moment simulation. Extensively validated using numerous measurements, MF-Swift is an excellent 3D tire simulation model for frequencies up to 100 Hz.
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Ideal for car and truck simulation, LMS CDTire allows engineers to do full-vehicle ride and handling, and comfort and durability analyses with tire belt dynamics. The LMS CDTire computes the spindle forces and moments acting on each wheel while driving on a 3D road surface. LMS CDTire accurately captures vibrations in the supported frequency range for durability and comfort studies. Belt vibrations are simulated up to 80 Hz. Unlike empirical tire models, LMS CDTire is an actual physical tire model. The tire belt is modeled as a distributed mass-spring-damper model with the deformable tire contact patch taking tire-road friction into account. Users can change the tire inflation pressure to create quick what-if studies. LMS CDTire contains 3 tire models which suitability depends on road surface and desired accuracy.
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To dynamically simulate mechatronic systems quickly and efficiently, LMS Virtual.Lab Motion Systems and Controls comes complete with an embedded library of control and hydraulics modeling elements. Directly accessible from the LMS Virtual.Lab interface, these control and hydraulics elements can be connected to the mechanical system to simulate a complete closed-loop mechatronic system. Users can also linearize a nonlinear mechanical system by selecting an operational working point and providing a simple path follower for vehicle analysis studies.
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This product makes it easier to understand and debug mechatronic controls and hydraulic elements embedded in LMS Virtual.Lab Motion. Users can review a 2D block diagram of the controls and hydraulics system that clearly illustrates connections and feedback loops between the different elements.
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LMS Virtual.Lab Motion Mechatronics Interface supports mechatronic system design through coupled simulation with LMS Imagine.Lab, third party packages as Matlab/ Simulink, (DSH Plus and MSC.Easy 5). LMS Virtual.Lab Motion uses a coupled equation method to solve mechanical system equations simultaneously with multi-physics controlled actuators system equations. The results are available in both LMS Virtual.Lab Motion (including 3D animation) as well as the control software tool.
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