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Detailed Design Review Kyle Abbott P14474 Mitch Sedore Brian Brenner Anushka Kalicharan Jake Manley Agenda Valve Customer Requirements Coupler Engineering Pressure Transducers Requirements Piping and Fitting


  1. Detailed Design Review Kyle Abbott P14474 Mitch Sedore Brian Brenner Anushka Kalicharan Jake Manley

  2. Agenda ● Valve ● Customer Requirements ○ Coupler ● Engineering ● Pressure Transducers Requirements ● Piping and Fitting ● System Overview ○ Enclosure ● Controller ○ Manifold ● Motor ● Bill of Materials ○ Driver ● Engineering Drawings ○ Encoder ● Schedule ○ Gearbox ○ Motor Mount

  3. System Customer Requirements

  4. System Engineering Requirements

  5. System Overview ● Components: ○ Piping and Fittings ○ Valves ○ Pressure transducers and manifold ○ Motor and motor mount ○ System Controller

  6. Overall Assembly

  7. System Diagram

  8. Ruggedized Data Acquisition Unit with Real Time Operating System

  9. CompactRIO Integrated Systems with Real- Time Controller and Reconfigurable Chassis

  10. Chassis Specifications ● 4 Module Slots ● 400 MHz Processor ● Spartan-6 LX25 FPGA ● 128 MB DRAM ● 256 MB Nonvolatile Storage ● 10/100 BASE-TX Ethernet Port ● RS232 Serial Port

  11. FPGA Specifications ● 24051 Logic Cells ● 38 Multipliers ● 936 KB RAM

  12. Embedded Software Diagram

  13. Analog Input Module NI 9215

  14. Analog Input Module Specifications ● 4 Voltage Inputs ● 100 kS/s per Channel ● Channel Independent Analog to Digital Converters ● 16-bit Resolution ● Built-In Signal Conditioning ● Channel-to-Earth Double Isolation Barrier ● Screw Terminal Connections

  15. Digital Input Module NI 9401

  16. Digital Input Module Specifications ● DSub Connector with Screw Terminal Adapter ● 8 5V/TTL Sinking/Sourcing Bidirectional Digital I/O Ports ● 100 ns Propagation Delay ● 9 MHz Switching Frequency using All 8 Ports as Inputs ● 500 ns Max Input Rise/Fall Time ● ±30 V Max Overprotection on One Channel at a Time

  17. Digital Output Module NI 9472

  18. Digital Output Module Specifications ● 8 Digital Output Channels ● 100 ns Propagation Delay ● 6 to 30V, Current Sourcing Digital Outputs ● Screw Terminal Connections ● 750 mA/Channel

  19. Controller Engineering Requirements

  20. Controller Risk Analysis

  21. Bill of Materials for Rugged DAQ Unit

  22. Motor ● Stepper motor chosen to control valve ○ Requirements: ■ Sufficient torque ■ Water resistant ■ Precise control

  23. Motor: Anaheim Automation NEMA 23Y65 ● IP65 Rated ○ Splash Proof and designed for humid environments ● 175 oz inches max output torque

  24. Torque Requirements ● Based on valve opening torque ○ 10000 PSI = 11 in-lb ■ 176 oz-in ● Taken from manufacturer handbook

  25. Motor: Anaheim Automation NEMA 23

  26. Motor Wiring Diagram

  27. Bipolar Microstep Driver Pack DPY50001

  28. Current Sourcing Driver Pack Wiring

  29. Electrical Specifications

  30. Motor and Control Pin Descriptions

  31. Steps per Revolution Selection Switch Panel Configurations

  32. Output Current Selection via Potentiometer

  33. Gearbox ● 3:1 reducing gearbox added: ○ Finer valve control ■ Standard motor step is 1.8 degrees ● .6 degrees per step with gearbox ● Approximately 4.1 psi/step ○ Increased side loading capability ■ Potential side loading from motor-valve misalignment wears motor bearings ■ Gearbox bearings carry much higher load ○ Increased margin of safety on valve opening torque

  34. Gearbox

  35. Motor Mounting Assembly ● Requirements ○ Support motor weight and torque loads ○ Adjustable installation to accommodate variation in plumbing/valve installation location ○ Ability to transverse along valve stem during opening and closing

  36. Motor Mounting Assembly

  37. Motor Mounting Assembly

  38. Motor Mounting Assembly ● Minimum of ¾ inch freedom in all 3 directions ● Shaft coupler allows for 3 degrees shaft angle misalignment

  39. Motor Mount: Stress Analysis ● Analysis done in Ansys Workbench (V 14.5.7) ● Moment applied to motor flange ● Motor and gearbox weight applied to motor flange ● Fixed supports at linear slide mounts ● Bolt pretensions at support plate ● Material: 6061-T6 aluminum plate ○ 42 KSI Ultimate, 35 KSI Yield

  40. Motor Mount: Stress Analysis Overview

  41. Motor Mount: Stress Analysis Overview

  42. Motor Mount: Stress Analysis Mesh: .050” Element Size

  43. Motor Mount: Stress Analysis Von Mises Stress Results

  44. Motor Mount: Stress Analysis Von Mises Stress Results

  45. Motor Mount: Stress Analysis Von Mises Stress Results

  46. Motor Mount: Stress Analysis Von Mises Stress Results

  47. Motor Mount Stress Analysis ● Results: ○ Majority of part well over F.O.S. of 2 (17.5 KSI) ○ Max stress exceeds F.O.S. of 2 allowable but is in compression ■ Mostly caused by bolt pretension and not component loading

  48. Encoder: ENC-A3I Single-Ended High Resolution w/ Index Channel

  49. Encoder: Engineering Requirements

  50. Encoder: FMEA

  51. Encoder- BOM Part Unit Tax & Company Part Quantity Subtotal Total Number Price Shipping ENC-A3I Single- ENC-A3I- Anaheim Ended High 0400-984- 1 $96 $96 $96 Automation Resolution w/ H-T Index Channel

  52. Valve ● Swagelok IPT series high pressure needle valve ○ 4-5 turns to open ○ 10000 PSIG operating pressure ○ CV value of 5.1 ■ High flow, low pressure drop ● Lowers minimum test enclosure pressure

  53. Valve ● Pressure drop across valve: ○ a ■ Q (gpm), ΔP (psi) ● 11.1 psi pressure drop ○ At 17 gpm max flow

  54. Valve & Motor Requirements

  55. Valve and Motor FMEA

  56. Coupler Selection ● Flex Coupling - 3 degrees ● Clamp on type - provides freedom in mounting and adequate torque

  57. Pressure Transducer Specs ● NIST Certified ● 0-5Vdc ● Stainless Steel ● Life of 10 million cycles ● Accuracy ○ 10,000psi= +/- 0.25% ○ 5,000psi and 1,000psi= +/-0.8% ● Response time of less than 1 millisecond ● 5ft 3 conductor cable ● 5 Point NIST traceable included

  58. Pressure Transducer Sensitivity Calculations ● 0 - 10,000 psi Transducer ○ 1 volt = 2000 psi ○ Accuracy = ± 25 psi ○ Step Voltage = 12.5 mV per 25 psi ● 0 - 5,000 psi Transducer ○ 1 volt = 1000 psi ○ Accuracy = ± 4 psi ○ Step Voltage = 4mV per 4 psi ● 0 - 1,000 psi Transducer ○ 1 volt = 200 psi ○ Accuracy = ± 0.8 psi ○ Step Voltage = 4mV per 0.8 psi

  59. Pressure Transducers- Eng. Reqmts

  60. Pressure Transducer Risk Analysis

  61. Pressure Transducer BOM Unit Tax & Company Part Part Number Quantity Price Subtotal Shipping Total 10,000psi pressure Omega transducer w/ 5' cable PX309-10KG5V 1 $225.00 $225.00 $225 5,000psi pressure transducer Omega w/ 5' cable PX309-5KG5V 1 $225.00 $225.00 $225 1,000psi pressure transducer Omega w/ 5' cable PX309-1KG5V 1 $225.00 $225.00 $225

  62. Piping and Fittings ● 1” XXH Black Pipe ○ Working Pressure ~ 24,000 psi ● Class 6000 Fittings ○ Equivalent to XXH piping ○ x3 Elbows ○ x3 Tees

  63. Working Pressure Calculation Using the following equation: The maximum working pressures were found for various materials. The safety factor used is 2.5, determined by ASME Power Piping code B31.3.

  64. Working Pressure Calculation

  65. Calculations Pressure drop calculations through drain pipe

  66. Piping and Fittings- Eng. Reqmts

  67. Piping and Fittings Risk Analysis

  68. Manifold ● Mounts 3 Pressure Transducers and 1 Digital Pressure Gauge ● 2 Shut-off Valves to Protect Low Pressure Transducers ○ No valve needed for 10,000 psi Transducer

  69. Manifold FMEA and Risk Analysis

  70. Manifold: Stress Analysis ● Analysis done in Ansys Workbench (V 14.5.7) ● 10000 PSI on all wetted surfaces ● Blow-out loads on all threaded joints ● Supports at 1” pipe joints ● Material: 7075-T6 aluminum ○ 70 KSI Ultimate, 59 KSI Yield

  71. Manifold: Stress Analysis ● Setup

  72. Manifold Stress Analysis ● Mesh

  73. Manifold: Stress Analysis Von Mises Stress Results

  74. Manifold: Stress Analysis Stress Peak

  75. Manifold: Stress Analysis ● Results: ○ Majority of part well over F.O.S. of 2 (29.5 KSI) ○ Max stress represents 1.27 F.O.S. ● Recommend development part in 7075 aluminum ○ Ease of machining ○ Cost ● Recommend production part in 15-5 PH stainless steel or equivalent strength stainless alloy ○ Heat treated to ~100 KSI tensile yield or better

  76. Enclosure: Overview ● Protect components from water spray and test part failure ○ Vulnerable components include: ■ Motor ■ Encoder ■ Pressure Transducers

  77. Enclosure FMEA and Risk Analysis

  78. Enclosure: Geometry

  79. Enclosure: Geometry ● Hinged door to allow quick access to transducer shut-off valves

  80. Bill of Materials

  81. Bill of Materials cont.

  82. Bill of Materials cont.

  83. P14474_101

  84. P14474_103

  85. P14474_105

  86. P14474_107

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