Semi-physical simulation solution for complex electro-hydraulic systems

The simulation and testing of large complex electro-hydraulic systems involves a variety of disciplines, such as mechanics, electronics, liquids, and control. The interdisciplinary relationship is complex and is a typical multidisciplinary cross-coupling problem. Constructing a semi-physical simulation test platform for complex electro-hydraulic systems, it can import various professional models, integrate with various test systems through its open interface, and its functions cover the mathematical simulation, rapid prototyping, and hardware-in-the-loop in the V-mode modern development process. The tasks of system integration, joint testing and fault injection at various stages, as well as fast iterative transformation at different stages, are ideal solutions for high-quality design, development and verification of products from functional implementation to current system performance leap.

However, the semi-physical simulation platform for building complex electro-hydraulic systems faces a series of technical difficulties:

• High professional requirements, combined with multi-disciplinary modeling tools such as mechanical, hydraulic, electrical, and control

• Electromechanical fluid model is complex, physical components, high-order, dynamic high frequency

• Many simulators do not support electromechanical fluid model downloads, and joint simulation models are difficult to convert to real-time models.

• The model is large and the hardware performance is limited. The real-time simulation step size is difficult to meet the us-level requirement.

• Model simplification and verification methods and capabilities are insufficient, real-time simulation does not achieve the expected results

For the above technical difficulties, Runke General proposed a complete semi-physical simulation solution for complex electro-hydraulic systems based on multi-disciplinary modeling technology, model simplification technology and high-performance parallel real-time simulation platform.

solution

Overall plan

The semi-physical simulation test platform of electro-hydraulic system uses various professional software Matlab/Simulink, Dymola, AMEsim, SimPack, Proosis to build each component model. After simplifying and real-time processing, it is divided into multiple systems and run in real-time operating system. The solution focuses on sub-system simulation and interactive simulation of the overall system to solve different real-time step problems and better realize semi-physical simulation verification.

main feature

• Integrate multi-disciplinary system simulation tools such as Matlab/Simulink, Dymola, AMESim, Proosis, etc. to support simulation modeling of electro-hydraulic systems

• Support high-performance real-time computing platform supporting strong real-time, multi-tasking, multi-disciplinary, multi-rate, multi-processor, multi-model, support real-time download of electromechanical and liquid co-simulation model and us-level real-time simulation step operation

• Provides a prototype prototyping platform for discrete electromechanical control systems or distributed electromechanical integrated management systems to support early verification of electromechanical control laws

• Provide various bus/non-bus excitation interfaces, support open-loop static test and functional verification of each sub-module of electromechanical control software and electromechanical control software and hardware

• Ability to implement numerical simulation (model verification using CAD, CAE analysis tool simulation results), calibration of test data (measurement of partial component performance results, calibration of component performance parameters, thereby improving overall system simulation accuracy) and other model verification functions

Key technology

• Professional modeling, multi-real-time system co-simulation

• Model simplification: state statistics, activity index, eigenvalue analysis and modal analysis, real-time requirements

• Model verification: numerical simulation (using CAD, CAE analysis tool simulation results for model verification), test data calibration (measurement of some component performance results, calibration of component performance parameters, thereby improving the accuracy of the overall system simulation)

Fashionable Diaper Bag

Fashionable Diaper Bags are becoming more and more popular as regular items for babies and parents. Whether it is a long-distance travel or a short trip, the Mummy Bag provides important convenience for babies and parents. The popularity of mommy bags has caused new parents to pay attention to infant travel, not only psychologically but also physical changes, with great significance.

Fashionable Diaper Bags,Travel Backpack For Baby,Mummy Nappy Bag,Outdoor Travel Baby Bag

JOYBABIES PRODUCT CO.,LTD. , https://www.joybabiesproducts.com