MTS Systems Civil Hybrid Simulation Package

MTS Civil Hybrid Simulation Introductory Package

MTS Systems Corporation has developed a streamlined means for obtaining the hardware, software and expert support needed to quickly establish basic civil hybrid simulation capabilities. Available for a limited time, turnkey MTS Hybrid Simulation Introductory Packages combine robust MTS physical test hardware, controls and software with industry-standard finite element modeling and integration tools to fully equip your lab for performing quasi-static hybrid simulation.

Quasi-static hybrid simulation is used to evaluate substructures or components that predominantly contribute stiffness and strength to a complete structure. Forces and motions are applied at an artificially slow rate to enable detailed study of structures under test and to accommodate a typical lab’s limited physical test infrastructure.

The usual scheme for a quasi-static test includes an actuator-driven test rig, a digital controller, a hydraulic power unit (HPU) and a test and simulation PC workstation. The simulation software runs a Finite Element Analysis (FEA) model, sending commands to the digital controller, which then activates a closed-loop control algorithm to drive the test rig to the desired location. The resulting state of the physical test rig is then communicated back up the same chain to the FEA model for the next iteration.

MTS Introductory Packages deliver the hydromechanical components, digital controls and FEA modeling software needed to quickly and affordably establish quasi-static hybrid simulation capabilities for education, demonstration and basic research applications.

Hydromechanical Components

Model 201 Single-ended Hydraulic Actuators: designed for long stroke and/or low dynamic applications; provide precision performance for low-frequency structural test and hybrid simulation applications.

Model 293 Hydraulic Service Manifold (HSM): ensures smooth, consistent line pressure regulation to independent test stations; a single manifold can be upgraded to serve up to four test stations.

SilentFlo™ Hydraulic Power Unit (HPU): renowned for quiet and clean operation. Capable of operating at or below 63 db(A), they can be deployed directly in the lab, eliminating the need for special pump housing facilities and reducing supply line length and space requirements. Representing the latest in HPU technology, new SilentFlo 515 units feature innovative energy efficiency and health monitoring options and system integration features to reduce total cost of ownership.

System Controller

FlexTest® 40 Digital Controller: allows test engineers to define and automate mechanical testing of material, component or structural test articles. FlexTest controllers employ a modular architecture that features field-upgradeable processors, making it easy to adapt to future test requirements and lab expansions. A standalone FlexTest 40 controller can be upgraded to support up to 4-channels and 2 test stations.

System Software

Physical Test Control Software: Full-featured MTS TestSuite™ MultiPurpose Elite (MPE) Software allows you to create and run tests that are tailored to match your exact material, component or structural test requirements. The MPE package includes Run-time Ramp Control Process software, which is ideal for quasi-static hybrid simulation applications. It enables test engineers ramp test actuators, pause them while an external device collect sdata, adjust the step size if desired, and then start the next ramp.

Finite Element Modeling Software: OpenSees is a highly modular and transparent open source software that allows researchers in different fields (engineering, computer science and numerical analysis) to develop specific modules of a simulation, relatively independent of other modules. This affords researchers the opportunity to focus on their respective areas of expertise without having to be familiar with all elements of a simulation’s framework. OpenSees was developed by the University of California, Berkeley.

Middleware: OpenFresco Middleware connects finite element models with physical test control and data acquisition systems to facilitate hybrid simulation of structural systems. OpenFrescoExpress is a simplified version of this software that is especially useful for learning and demonstrating hybrid simulation concepts on test rigs with up to two actuators. The OpenFresco middleware software framework represents the work of a wide array of research organizations, most notably the Pacific Earthquake Engineering Research (PEER) Center at the University of California, Berkeley.

Expert MTS Guidance

For decades, MTS has collaborated closely with leading research institutions to advance the science and technology of civil/seismic test and simulation, having commissioned state-of-the-art real-time and quasi-static hybrid simulation systems at 85 sites worldwide.

The MTS team is comprised of highly experienced application and systems integration engineers who have joined MTS to be on the leading-edge of civil structures testing. They are prepared to support the installation and integration of your quasi-static system and train your lab personnel to operate it safely and efficiently.

Once your system is fully operational, the MTS team will work with you to realize maximum uptime, maintain optimal performance and manage system upgrades to meet your evolving hybrid simulation needs.

Contact MTS today and learn how an MTS Hybrid Simulation Introductory Package could help your civil/ seismic lab realize the benefits of hybrid simulation with maximum speed and confidence, and minimal risk and cost.



MTS Systems

14000 Technology Drive
Eden Prairie, MN USA

Tel: 952.937.4000
Tel: 800.328.2255
Fax: 952.937.4515