Hydraulic servo system based on virtual prototyping technique

Abstract

The invention discloses a device capable of realizing synchronous simulation of a physical prototype and a virtual prototype of a hydraulic servo device. The device mainly comprises a hydraulic servo device physical prototype (1), a hydraulic servo device virtual prototype (2), a signal acquisition processor (3) and a synchronous simulation module (4). The hydraulic servo device physical prototype mainly comprises a servo valve and a sensor; the hydraulic servo device virtual prototype is a three-dimensional digital model established based on Solidworks; the signal acquisition processor is a virtual instrument platform constructed based on LabVIEW; and the synchronous simulation module is designed according to a LabVIEW SoftMotion module. When an appointed displacement signal is input, the motion of the physical prototype and the virtual prototype is controlled by the signal acquisition processor, motion parameters of the physical prototype are acquired and processed, the synchronous simulation module establishes the communication between the physical prototype and the virtual prototype to feed back a motion state of the physical prototype to the virtual prototype, and thus the synchronous simulation of the physical prototype and the virtual prototype of the hydraulic servo device is realized.

Description

technical field [0001] The invention belongs to the technical field of hydraulic servo devices and virtual prototypes, and relates to a novel hydraulic servo device based on a virtual prototype, which can realize the synchronous simulation of the virtual prototype and the physical prototype of the hydraulic servo device. It is suitable for realizing high-precision hydraulic servo control and synchronous simulation design of virtual prototype and physical prototype. It can also be used to realize device simulation and create a virtual prototype device. Background technique [0002] Since the hydraulic servo device has a large power-weight ratio and moment-inertia ratio of the hydraulic components, the transmitted torque and power are large; the response speed of the hydraulic actuator is fast, and the use of a correction device in the servo control can increase the loop gain and widen the frequency band. With the development of automatic control theory and the increasing auto...

AI Technical Summary

Problems solved by technology

In the traditional product design and manufacturing process, in order to verify the overall performance of the product, the physical prototype (Physical Prototype) method is often used, but this method has a long production cycle and high cost. After entering the 1990s, with computer technology and CIMS technology The rapid development of virtual prototype (Virtual Prototype) plays an increasingly important role in the product design and manufacturing process. etc.) A simulatable digital model that is as similar as possible to the actual product in terms of characteristics. In August 2009, National Instruments (NI for short) launched the latest LabVIEW NI SoftMotion module, which effectively simplifies advanced single-axis and multi-axis motion. The development process of the application

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