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New Software Generation for Greener Energy Efficient Mechatronic System Design & Analysis
V. Remillard(빈센트 레밀라흐드),J. Sfeir,C. Quennouelle,D. Lenoble,J. S. Lee(이정수) 유공압건설기계학회 2013 유공압건설기계학회 학술대회논문집 Vol.2013 No.6
In the world of simulation software, many different approaches are used to obtain accurate hydraulic circuit simulation. Most of these tools model components as a set of mathematical equations parameterized with mechanical and geometric data for each component. They are able to simulate in depth specific functions of a circuit, however it becomes progressively a more demanding task to simulate more complex and complete systems. One of the key elements of simulation software is its ability to model valve performance in terms of flow characteristics, pressure drop and flow force. This also holds true for pumps and motors where the knowledge of efficiencies is required to achieve realistic duty cycle behavior. In this paper, the chosen approach is to demonstrate the efficiency of modeling components using a software downstream design methodology by implementing readily available performance curves and other characteristics of hydraulic components and functions. This downstream method of modeling components ensures the reliability and accuracy of systems behavior based on manufacturer specific data and allows for fast simulation of complete virtual machines which is impractical to achieve by traditional upstream programming. The simulation of a complete hydraulic system delivers global validation and analysis capabilities that can also be exploited beyond the engineering design scope including maintenance diagnostics and training activities. This paper will demonstrate that using Automation Studio™ ?a commercially available off-the-shelf drawing and simulation software tool that uses mainly downstream design? simulation data and OEM product information can be easily entered from a readily available hydraulic component vendor in order to create valves, pumps and motors for fast and accurate sizing and system simulation of a virtual machine. The ability to realistically simulate entire machines offers a unique capability to monitor, and study specific performance criteria such as: hysteresis, pressure drop, leakage, flow force, and other flow/pressure characteristics, power generation and transmission up to the full energy consumption at various operating conditions.
Richard Gagne,Vincent R?millard,Joe Sfeir 유공압건설기계학회 2014 유공압건설기계학회 학술대회논문집 Vol.2014 No.9
Current economic and environmental constraints are pushing OEMs and system integrators to design high performance systems with tighter development time requirements. They naturally resort to simulations to avoid the time and cost of early prototyping. This establishes a new “language” of virtual machines and components that hydraulic, electrohydraulic and control component manufacturers also need to acquire to be able to market their products. This paper presents an innovative hybrid modeling methodology to aid the design and analysis through simulation of complete electrohydraulic and mechatronic systems and machines. This methodology combines modeling using physical parameters and equations, and modeling using multidimensional high-level performance curves. All of the above embedded into compatible and interchangeable gray boxes that can be used and customized according to the machine performance simulation needs.