Method for simulating oil flow in hydraulic loop pipeline based on Unity

A hydraulic circuit and pipeline technology, which is applied in the field of virtual reality teaching, can solve the problems of unintuitive oil simulation hydraulic circuit and lack of three-dimensional sense, and achieve the effects of reducing financial expenditure, improving teaching quality, and strong three-dimensional sense

Pending Publication Date: 2021-02-12
2 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies and difficulties in the prior art, the present invention aims to provide a Unity-based method for simulating the flow of oil ...
View more


The invention discloses a method for simulating oil flow in a hydraulic loop pipeline based on Unity. The method comprises the following steps: performing format conversion on a modeled model through3ds max software, and importing the model into Unity; optimizing the model, and rendering the scene; after an explanation scene is constructed, adding a loop diagram button newly, and compiling a script implementation function; designing a part dragging function; designing a trigger detection function; after the parts are arranged, placing the parts in sequence to form a hydraulic loop diagram; controlling the generation of the small ball by using a control script GameManager; through a single example mode, calling a plurality of variables in a GameManager to control the movement of an oil path; wherein two small balls are generated each time, and each small ball has an array path, a SphereManager script is hung on the small ball body and is generated in a GameManager, and after the scriptis generated, the small ball body automatically moves according to two arrays on the small ball body. According to the invention, the problems that the hydraulic loop cannot be represented in a three-dimensional manner and the movement of the oil liquid in the hydraulic loop cannot be clearly and visually described are solved.

Application Domain

Educational models

Technology Topic

ModelSimSoftware +9


  • Experimental program(1)

Example Embodiment

[0030] In order to make the object, technical solution, and advantages of the present invention clearer, the present invention will be further described in detail in conjunction with the following examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of this application.
[0031] A Unity-based method for simulating oil flow in a hydraulic circuit pipeline. In specific implementation, the above method includes two aspects: constructing a hydraulic circuit and simulating oil movement.
[0032] In the first aspect, construct the hydraulic circuit.
[0033] (1) Carry out modeling of circuit components, convert formats, and import into Unity
[0034] Use SolidWorks software for 3D modeling, including circuit components such as gear oil pumps, relief valves, throttle valves, cylinders, pipes, and fittings.
[0035] Import the model built by SolidWorks software into 3ds Max software. Since the export format of the model built in SolidWorks is STEP, and Unity is not effectively compatible with the 3D model in this format, 3ds Max is used as the intermediate software for format conversion. SolidWorks outputs STEP format software, imports it into 3ds Max, and converts it to the FBX format compatible with Unity.
[0036] Convert the established 3D model into Unity3D, use the resources imported into the Unity platform and the built-in model of the platform to design and build scenes for hydraulic circuits, and set different shader parameters according to different models.
[0037] (2) Model optimization and scene rendering
[0038] Add lights and textures to the scene for rendering.
[0039] Design and make a GUI page in Unity, create a new Panel (drawing board component), name it MainPanel,
[0040] This MainPanel is the main carrier of the entire GUI page, and all the production processes are completed on it.
[0041] Add Button (button) components, Text (text components) and Slider (slider components) on the MainPanel page, and name them accurately and standardizedly. The added components can be arranged in a certain logical order.
[0042] Create a new Empty (blank) component in the MainPanel and rename it to All. This component is mainly used for the construction of hydraulic circuits and the design of oil movement. Adjust the size of the Empty (blank) component to make it a suitable display size. .
[0043] (3) After building the explanation scene, add a circuit diagram button and write a script to realize the function;
[0044] Create four new 3D Object Cubes (cubes) in the empty object All, and name them Cube1, Cube2, Cube3, and Cube4 in turn. These four three-dimensional graphics are positioning bodies for subsequent dragging of hydraulic components, which facilitates subsequent dragging operations and subsequent identification of dragging actions.
[0045] First, set two identical models for each part, and drag and drop them directly from the project interface to the scene interface. One of them has BoxColider and the other one doesn't.
[0046] A rigid body component is added to the part with BoxColider, and the script ModelsPosChange is added. This script has two functions, the first is dragging, and the second is trigger detection. The drag and drop function is to follow the mouse movement, and the corresponding mouse ray detection must have a BoxColider collider, so if there is no BoxColider model, it will always be in place.
[0047] The trigger detection function is to trigger the corresponding object to hide the current object and display another object. The final effect is that when the dragged object touches its corresponding position, a correct model will be generated at that position. Trigger detection is judged according to the Tag label.
[0048] (5) After the parts are set up, place them in order to form a hydraulic circuit diagram
[0049] Since the position placement of each hydraulic component is fixed and unique, each component must be given a corresponding coordinate point and a corresponding positioning point. If the appropriate coordinate point is reached, the model can be automatically absorbed to the anchor point.
[0050] Hydraulic components and connecting each hydraulic component through pipe joints and oil pipes form a complete throttling and speed regulating circuit. So far, the construction of the hydraulic circuit has been completed.
[0051] The second aspect is to simulate oil movement.
[0052] After building the hydraulic circuit, the next step is to simulate the flow of oil through the pipes.
[0053] Since the hydraulic circuit is a three-dimensional pipeline, which contains coordinates in the three directions of X, Y, and Z, the movement of oil in the pipeline can also be called the movement in three-dimensional space, so some key points can be located by fixed-point marking , transforming motion in three-dimensional space into motion in a two-dimensional plane.
[0054] At the corners of hydraulic components and pipelines, there is often a change in coordinates in one direction or even in two directions. Therefore, a mark point is taken at these coordinate conversion positions, and a total of 24 mark points are taken. There is a distance between each two mark points. There is only one coordinate axis change, and it only needs to be carried out along a straight line.
[0055] Therefore, the oil movement in the oil circuit is realized by the slow movement of the small ball in the oil pipe, as follows:
[0056] (1) Use the lambda expression to register the button event;
[0057] (2) There are a lot of small balls moving slowly in the oil circuit, use the control script GameManager to control the generation of small balls;
[0058] (3) Control the movement of the oil circuit.
[0059] In the event of the "oil movement" button, the expression of the button is mainly realized through the singleton mode. Several variables inside are called to control the movement of the oil circuit, so that the button click and the movement of the ball can be highly decoupled without interfering with each other. Two small balls are generated each time, and each small ball has an array path. Each small ball is hung with a SphereManager script, which is generated in the GameManager. After generation, it will automatically move according to the above two arrays.
[0060] In the constant pressure throttling and speed regulating circuit, the flow cross-sectional area of ​​the throttle valve will control the speed of the oil moving in the oil circuit.
[0061] In order to intuitively reflect the working principle of the throttling speed regulating circuit, a tie bar is added to control the flow cross-sectional area of ​​the throttle valve in the throttling speed regulating circuit, so as to control the speed of oil moving in the oil circuit.
[0062] First, add two UIs in the Main2Panel interface under the original Canvas; the first one is Text, which is used to display the text of the slider, and the second is a Slider slider, which is used to reflect the change of the flow cutoff of the throttle valve. The change of oil velocity after the area. After adding these two UI objects, add a script control object to realize the function. The added script is in the Main2PanelManager script above the parent object Main2Panel of the slider.
[0063] The product of this teaching design is released on the PC side, and the product is released when there is no problem after debugging.
[0064] First click on the File menu and select the Build Settings menu command. Click the Add Current button to add the current scene. Then select PC in the Platform (template), then select the Windows platform in the right interface, and finally click the Build button to select the folder where the released product is located to implement the release.
[0065] The above description only expresses the preferred implementation of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications, improvements and substitutions without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.


no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Moisture-proof device for motor

InactiveUS20050012416A1increase in production capacitygood effect

Detecting system and method for partial discharge detecting sensor of GIS (gas insulated switchgear)

ActiveCN103336259AThe result is intuitive and accurategood effect

Classification and recommendation of technical efficacy words

  • Strong three-dimensional sense
  • good effect

Printing adhesive liner cloth and its making process

InactiveCN101008155Arealistic patternStrong three-dimensional sense

Super-flat glazed brick

ActiveCN106007377AStrong three-dimensional senseImprove the honor rate

Wood-like co-extruded ASA modified material and preparation method thereof

InactiveCN101451010AGood wood textureStrong three-dimensional sense

Non-woven silk composite wallpaper and production process thereof

ActiveCN101792989AStrong three-dimensional senserich color
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products