PI 108-13 Lohr am Main, 2013-10-04

System Simulation Comes up to Reality

Ready for virtual commissioning; simulation model of a Sytronix variable-speed pump drive with variable load profile

K trade show: How simulation programs from Rexroth realistically assess the dynamics of drive solutions

The increasing complexity of and the performance requirements for plastics machines require feasibility studies in the development process of projects to substantiate the selection of systems and components. For this, Rexroth offers simulations of holistic drive systems that allow the interaction of hydraulics, mechanical systems, electronics and software to be assessed at an early stage. At “K”, Rexroth demonstrates the validity of the simulation of an energy-efficient Sytronix drive in a direct comparison of the computed results with the performance values of real hybrid drives.

So far, optimizing series machines has been a complex process. For this reason, more and more machine manufacturers rely on simulation programs to accelerate this optimization. However, the programs available on the market often examine sub-systems of machines and cannot take account of, for example, special characteristics of fluid power technology.

Based on worldwide application experience in a wide variety of plastics processing machines, Rexroth has developed own simulation programs, which cover all drive and control technologies.

In the course of joint planning and development in cooperation with machine manufacturers, Rexroth uses these simulation programs to verify customer applications with regard to achievable dynamics under normal operating conditions (laid down in the specification) and in extreme situations (power failure, emergency stop) as well as the rating of selected drive components with regard to dimensions and operating conditions. Rexroth proposes control concepts and their parameterization (e.g. for commissioning) and optimization in terms of dynamics and energy.

This virtual commissioning process carried out in advance firstly substitutes expensive real machine prototypes. Even extreme situations, which cannot be tested in reality for reasons of machine and personal safety, can be examined very easily. In addition, it is possible to recognize potential problems and eliminate them with little effort before the system is realized. Simulation also allows access to all measured variables of the drive system and the machine, even to such variables that can otherwise hardly or not at all be acquired on real machines.

At "K" Rexroth presents the analysis of load profile changes of a typical injection cycle in conjunction with a real variable-speed drive. Rexroth demonstrates how the effects of the use of an energy-efficient Sytronix SvP 7010 drive on dynamics and energy consumption can be established with high accuracy before the drive is actually installed.

Bosch Rexroth at K 2013 – hall 10, booth C22

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, pneumatics, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 37,500 associates generated sales revenue of approximately 6.5 billion euros in 2012.

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The Bosch Group is a leading global supplier of technology and services. In fiscal 2012, its roughly 306,000 associates generated sales of 52.5 billion euros. Since the beginning of 2013, its operations have been divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent some 4.8 billion euros for research and development in 2012, and applied for nearly 4,800 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.”

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Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573

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