Essential Technologies for Industrial Machine Design and Prototyping

Transcription

1 Essential Technologies for Industrial Machine and Prototyping 1

2 Mechatronics: Streamlined Approach to Machine 2 Mechanical 3 1 Requirements Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 2

3 Requirements Mechanical 1 Requirements Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 3

4 Requirements Functionality: Milling aluminum parts Part size: Up to 10 by 15 cm Throughput: 3 parts per minute Precision: 5 µm Safety: Light curtains, emergency stop Cost: <$50,000 Automotive Part 4

5 NI Requirements Gateway 1. Organize requirements 2. Associate details 3. Track implementation 5

6 Mechatronics Concurrent 2 Mechanical Requirements Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 6

7 Traditional Approach: Requirements to Mechanical Concept Requirements Milling aluminum Up to 10 by 15 cm 3 parts per minute 5 µm Light curtains, emergency stop <$50,000 Mechanical Conceptual 3D CAD Model 7

8 Mechatronics Approach: Concurrent Development ( Tool Integration) Mechanical Electrical Control Virtual Prototype (Simulation) Embedded 8

9 Level of Tool Integration Ultimate One design tool for all disciplines Manual Manually pass data between tools Basic Data transferred via standard file formats Motion profile data as CSV file to CAD Advanced Complete tool automation NI LabVIEW automating SolidWorks through ActiveX 9

10 Open Connectivity to Tools Mathematics NI LabVIEW Math The MathWorks, Inc. MATLAB Maplesoft Maple MathSoft Mathcad Electrical NI LabVIEW (Motor Sizing) NI Multisim ORCAD PSpice Ansoft er Control NI LabVIEW Control The MathWorks, Inc. Simulink Dynasim Dymola Plexim PLECS Embedded Software NI LabVIEW Real-Time/Embedded Wind River Workbench Analog Devices VisualDSP++ Freescale Code Warrior Xilinx System Generator Virtual Prototyping Platform Mechanical SolidWorks SolidWorks PTC Pro/Engineer MSC Nastran and Adams Autodesk AutoCAD MATLAB and Simulink are registered trademarks of The MathWorks, Inc. 10

11 LabVIEW: Virtual Prototyping Platform Intuitive graphical tools for domain experts Built-in control design and simulation tool integration Flexible, open architecture Ability to target multiple industrial hardware platforms 11

12 Virtual Machine Prototyping Requirements Conceptual Customer Virtual Machine Prototype (Simulation) Team Mechanical: visualization Electrical: Motor sizing Control: Verify control logic Embedded Software: Easy implementation 12

13 Mechanical Challenges Challenge: Understanding the requirements Solution: Electromechanical simulation Benefits: Improved customer communication Confidence builder: showing proof of concept Competitive advantage in the bidding process Improved design team communication Refining design specifications Evaluating high-level architectural design 13

14 Electromechanical Simulation Steps 1. Determine machine logic 2. Generate profile data with virtual prototyping software 3. Send to 3D design tool 4. Use CAD tool to animate machine functionality 14

15 Software Tools SolidWorks Professional COSMOSMotion LabVIEW Professional Free SolidWorks/LabVIEW ActiveX Interface NI Motion Assistant SolidWorks LabVIEW Interface Functions 15

16 Demo: LabVIEW Automates Visualization 2. Control 1. Mechanical 16

17 Electrical Mechanical System Specification Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 17

18 Electrical Challenges Challenge: Specifying correct motor size Solution: Sizing virtual motors Benefits: Apply motor sizing principles interactively Virtually test various motors Estimate control tuning parameter before physical prototype 18

19 Virtual DC Motor Sizing 1. Acquire motor specifications from data sheet 2. Simulate motor response to velocity and torque profile from CAD i R L + - V sup DO5 + v m v R = ir di v L = L dt + - v e = K e dθ dt id - 19

20 Control Mechanical System Specification Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 20

21 Control Challenges Challenges: Software development in critical path Physical prototype needed to test control algorithm Solution: Develop and test control algorithm on virtual model Benefits: Get head start on control development Refine control strategy before physical prototyping Detect interferences and resonance 21

22 Integrating Control and Mechanical Control Software Simulation Command Feedback 1. Develop machine control logic 2. Animate model and identify potential issues 22

23 Demo: Interference Detection 1. Motion Profile 2. Interference Detection 23

24 Control Challenges Challenge: Finding an alternative for conventional PID, which is not tuned for all machine states Solution: Using advanced PID or other control algorithms Benefits: Achieve more precise control Choose from PID, advanced PID, and modelbased and model-predictive control Reduce wear and tear on machine parts 24

25 Embedded Software Mechanical System Specification Control Electrical Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 25

26 Embedded Software Challenges Challenge: Implementing embedded algorithms Solution: Using control design software that runs natively on embedded hardware Benefits: Reduced development time and cost Less chance for translation errors 26

27 Physical Prototyping Mechanical 3 Requirements Electrical Control Virtual Prototype (Simulation) Physical Prototype Manufacturing Test System Manufacturing Support and Service Sustaining Engineering Embedded 27

28 Algorithm Engineering Software Hand Code Verify Algorithm Prototype Hardware 28

29 Algorithm Engineering Software Code Generation Verify Algorithm Code Optimization Verify Algorithm Prototype Hardware 29

30 Algorithm Engineering Software Prototype Hardware 30

31 Prototyping Challenges Challenge: Choosing the right prototyping platform Solution: Controller Using speed packaged and memory FPGA-based PAC hardware I/O from platform specialty signals Ability to implement advanced control algorithms Benefits: Reliably run custom control algorithms Integrate any I/O including machine condition monitoring and vision 31

32 Prototyping Hardware Desktop PCs Industrial PCs Programmable automation controllers (PACs) Programmable logic controllers (PLCs) Custom boards 32

33 Programmable Automation Controller (PAC) Ruggedness and reliability of PLC Software capabilities of PC Modular and diverse I/O 33

34 FPGA-Based Programmable Automation Controller SBC PLC Custom NI CompactRIO 34

35 Use Case: Digital Photo Kiosk Challenges Precise web tensioning Vibrations from cutter head Varying motor speed Solution Mechatronics Mechanical and control simulation Sixth-order control algorithm Two-motor axis dancer system Prototyping with LabVIEW and CompactRIO Result 10X faster than competition 35

36 Use Case: Digital Photo Kiosk 36

37 Demo: Physical Prototype 37

38 Additional Considerations: Machine Condition Monitoring Why use machine vision? Increase product throughput Reduce product inspection cost Use infrared, X-ray Applications Manufacturing Product testing Product packaging Robot guidance 38

39 Additional Considerations: Machine Condition Monitoring Data Acquisition Loose Mounting Alignment Data Analysis Gear Health Diagnosis and Control Unbalance Motor Mechanical Resonances 39

40 Conclusion Mechatronics concurrent development: Reduces development time and risk Requires design tool integration 40