1 / 18

JEM MEIS INC1920 31407 Marangoni Experiment Inc19/20

harris
Download Presentation

JEM MEIS INC1920 31407 Marangoni Experiment Inc19/20

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notice : This technical data is furnished on the condition that it will be used by and disclosed to the receiving Cooperating agency and its contractors and sub contractors only for the purposes of fulfilling the cooperating agency’s responsibilities under the Space Station Intergovernmental Agreement (IGA) and Memorandum of Understanding (MOU). It shall not be used for any other purpose, nor disclosed or retransferred to any other entity or government without prior written permission of the Japan Aerospace Exploration Agency (JAXA). JEM MEIS INC1920 31407 Marangoni Experiment Inc19/20 Instructor: Yuki Kawai Takuya Takami (yuki.kawai@jamss.co.jp) (takami.takuya@jaxa.jp)

  2. Objectives After this lesson the trainee will be able to: Marangoni Experiment MS (Marangoni Surface) Marangoni Experiment Operations Overview Key point during Marangoni Experiment Operations Marangoni Experiment Operations • Explain the science objective of Marangoni Experiment. • List onboard outcomes from performing Marangoni Experiment. • List three components of MS. • Explain how liquid bridge is formed. • List crew tasks regarding Marangoni Experiment. • Explain what crew must check after assembling MS Core and MS Cassette to prevent fire during experiment. • Explain what crew must pay attention to protective covers to prevent broken glass hazard. • Identify the parts where crew must not damage nor contaminate. • Explain what crew must check just before installation of MS into FPEF. • Explain what crew must care during 3-D Camera focus adjustment. • Explain what crew must not do while inserting MS Cassette into MS Core . • Perform Marangoni Experiment tasks according to ODF.

  3. Lesson Outline Contents: - Marangoni Experiment - MS Architecture - MS Major Components - Marangoni Experiment Operations Overview - Key Points during Marangoni Experiment Operations - Acronyms Page 4 5 6 8 14 15

  4. Marangoni Experiment The main purpose of Marangoni Experiment is to investigate the transition process to periodic, chaotic and turbulent flows of marangoni convection in a liquid bridge. Onboard Outcomes from the experiment Experimental data (temperature, cooling disk position etc.) monitored by MS and FPEF (downlinked to ground via Fluid Physics Experiment Facility (FPEF)) Video Images taken by MS and FPEF (downlinked to ground via Image Processing Unit (IPU), and IPU VRU Disk will be returned to ground) Microgravity environment data taken by Microgravity Measurement Apparatus (MMA). (downlinked to ground via Image Processing Unit (IPU))

  5. MS (Marangoni Surface) is one of FPEF Experiment Cell, and is able to generate Marangoni convection and measure surface velocity of liquid bridge. MS consists of three components. Crew member assemble/ disassemble MS. MS Body • has mechanical/ signal/ power interfaces with FPEF. • mounts Surface Velocity Measurement Equipment. MS Core • contains heating disk and cooling disk of 30mm in diameter. • has optical windows. Install to FPEF MS MS Cassette Liquid bridge formation part • contains silicone oil (viscosity: 5cSt or 10cSt) with small particles/ photochromic dye. • crew exchanges MS Cassette as a unit. liquid bridge • forms liquid bridge up to 60mm length and creates temperature gradient between heating disk and cooling disk. Heating disk: 90 deg C (maximum) Cooling disk: 5 deg C (minimum) 30mm in diameter 60mm maximum MS Architecture

  6. MS Major Components Surface Velocity measurement equipment • consists of GN2 laser, mirrors, prism, CCD camera, and LEDs. • irradiates GN2 laser beam to the surface of liquid bridge. • Liquid bridge which contains photochromic dye is colored when it is irradiated by GN2 laser. • observes the movement of the colored spot by CCD Camera to measure surface velocity. Light Source of GN2 Laser Liquid Bridge LEDs are used as a backlight Mirrorｓ, Prism GN2 laser path Colored spot CCD Camera Light Source of GN2 Laser CCD Camera MS conceptual diagram for Liquid Bridge Surface Observation

  7. MS Major Components (Cont’d) Liquid bridge formation part MS Cassette will be installed into MS Core. Liquid bridge formation part MS Core MS Cassette QDs for gas lines Heating Disk QDs for cooling water MS Core MS Cassette MS Core Cooling Disk Peltier Device Motor Liquid Bridge Cooling Water Inlet & Outlet Installation Sample Pumped Bellows for Sample Reservoir MS Cassette Liquid bridge formation part GAr Supply & Waste Gas Line

  8. LEGEND: :Crew operation necessary. :Ground operation. Marangoni Experiment Inc20 Operations Overview FPEF Operation IPU Operation MMA Operation Assemble MS (new MS Cassette) Install MS into FPEF UDC/MMA Activation IPU Video Downlink/Recording MMA Data Acquisition Experiment UDC/MMA Deactivation Exchange IPU VRU Disk Remove MS from FPEF Disassemble MS FPEF Maintenance - Lamp exchange - Load connector connection/disconnection MS Maintenance - O-ring exchange, cleaning etc.

  9. Assemble MS Assemble MS • Attach MS Core and MS Body to MWA by using handle and MWA I/F tools • Install MS Cassette to MS Core • Conduct leak check by using MS Hand Pump • Install MS Cassette/Core to MS Body • Attach Fiber Optic Cable * Adjust knob of LED/SENSOR CAL as required * Change temperature channel as required MS Core MS Cassette MS Body

  10. Assemble MS (Cont’d) -is used to secure MS body to MWA. - can be folded. -Crew assembles MS Handle B. -is attached to MS Core, and fixed to MWA I/F B. -has two direction of fixing to MWA I/F B. MS Handle B MS MWA I/F A MS Core MS MWA I/F B -is used to secure MS Core with MS Handle B to MWA. -is rotatable every 45 degrees. MS Body MWA

  11. Assemble MS (Cont’d) -is attached to MS Cassette to depress inside of liquid bridge formation part. MS Hand Pump Flight Model MS Core MS Cassette MS Body Fiber Optic Cables Engineering Model

  12. Assemble MS (Cont’d) Temperature channel connector (One of three is connected) Knob for LED Cover Knob for SENSOR CAL

  13. Install MS into FPEF Install MS into FPEF focus ring screw diaphragm focus ring spacer 1. Remove FPEF Front Cover 2. Check 3-D Camera settings (diaphragm and focus) 3. Install MS into FPEF 4. Install IR Imager into operations position 5. Connect Harnesses/Hoses between FPEF and MS 6. Attach Experiment Cover Body 7. Connect FPEF Payload Bus Cable 8. Connect hoses with FPEF Silicone Filter Unit 9. Attach Experiment Cover Plate 10. Connect video cables between FPEF and IPU 3-D Camera setting diameter of liquid bridge (30 or 50) Silicone Filter Unit IR Imager 1553B cable pass through MS Silicon Filter interface Experiment Cover Body Experiment Cover Body Experiment Cover Plate

  14. FPEF Maintenance FPEF Maintenance Lamp exchange Load connector connection/disconnection 1. Remove Lamps with Lamp House Cover from FPEF 2. Separate Lamp House Cover and Lamps 3. Exchange Lamps 4. Install new Lamps with Lamp house Cover into FPEF 1. Connect FPEF Load Connector P12 to J12 2. Update FPEF software (Ground) 3. Disconnect FPEF Load Connector P12 Lamp House Cover FPEF Load Connector P12 J12 FPEF Lamps

  15. Key Points during Marangoni Experiment Operations - Take care that washer is in correct position on fastener to avoid binding.

  16. Acronyms CCDFPEFGAr IPU IR MMA MS UDC VRU Charge Coupled DeviceFluid Physics Experiment FacilityGas Argon Image Processing Unit Infrared Microgravity Measurement Apparatus Marangoni Surface Utility DC/DC Converter Video Record Unit

  17. Appendix • Lamp housing

  18. Lamp housing Front side Upper side Lamp 1 FPEF Lamp House Cover Lamp 2 Front side connection point for thermostat-wire Front side FPEF Lamps

More Related