What is a Radio Telescope? Instead of using optics, it focuses and - - PowerPoint PPT Presentation

What is a Radio Telescope?

Instead of using optics, it focuses and amplifies radio waves to generate a picture. We are primarily looking at 1420 Mhz. Allows us to study astronomical objects

Problem Statement / Design Considerations

• 4.5 m ≈15 ft dish
• John C. Rudy Park
• Auto Tracking
• Autolocating
• Withstand elements

Overview

Design Phase Physical Construction Radio Telescope: Goal

ME Team

Jessie Furey - ME Darin Gordon - ME Josh Sowa - ME Richard Hopkins - ME Marcos Rivera - ME Don Hake - Project Manager - Capstone Lead

• Dr. Stephen WIlkerson PhD, P

.E. - ME Advisor

• Dr. Kala Meah PhD - EE Advisor

Major Components of Radio Telescope

• ME Capstone Team took charge

and completed several major systems

• ME Finished designing and

fabricating Pedestal, Elevation Frame.

• Planning and Layout for Triangle

Connector and Existing Dish Overview of Radio Telescope Assembly

Pedestal (What we had)

Tube and Flanges getting ready to transport to Wolfe Tool Machine Shop Setup of pedestal at Voith Hydro Machining of plate flanges

Pedestal (We broke ground!)

Excavation Site at John Rudy Pedestal On Site Perimeter Fencing Layout of Template Completed Pedestal

Azimuth Sensor mounts

Elevation sensor mount

Elevation Frame (Where we started)

Design provided by previous team

Parts provided:

• Base plates
• Tubing
• Side plates
• Elevation rod
• Timken bearings
• APEX gearbox

Base plates and tubing Side plates

Elevation Frame (What we did)

Our final design Finite Element Analysis Partial View of Drawings

Elevation Frame (Current Status)

Completed elevation frame subassembly

Remaining work:

• Paint shims
• Organize safe lifting method
• Place on azimuth

Cover - Preliminary Design

Basic requirements

• Removable by a single

person without disassembling the telescope

• Light weight and water

resistant

• Long lifespan

Left and right pieces of cover Cover with removable panel

Triangle Connector (Where we started)

Triangle Connector (Where we're going)

Final Triangle Connector Assembly FBD of TC & Dish Examination of Counterbalance Connection TC 10 degrees below horizontal

Triangle Connector (Where we're going)

FEA of the worst case at 30 mph winds 0 degree Orientation). Factor of Safety of 2.5 FEA of the worst case at 30 mph winds at 60 degrees orientation. FOS of 3.3 FEA at 90 degrees orientation-Stowed. FOS of 2.5

Triangle Connector (Challenges)

Mock Up of Triangle Plate with Hub & Struts Template of Plate Redesign of Triangle Connector Planetary Gear reduction 10:1 24 VDC Brake Motor

TC Fabrication

Components fabricated to specifications A.E.C.S Inc. A.E.C.S Inc. NSC ME TEAM ME TEAM

TC Component Inspection

Inspection Drawings and corresponding inspection sheet for all components TC-4 Inspection Drawing

TC Weld Subassemblies

4 Weld Subassemblies Subassembly Drawing

• Final Weld Assembly
• Post Weld Inspection

TC Final Weld Assembly

TC Post Machining

Triangle Connector Post Machining Bearing Plate Close Up

Existing Dish (Dry Assembly)

Assembling the braces and ribs

• f the existing dish.

One petal assembled.

Existing Dish (New Looks)

Existing Components Sandblasted and Painted Components

Upper Assembly Testing/Preparation

Modifications of Test Stand Moving Azimuth off the Table Design of Test Frame

• Testing the Upper Assembly Safely with

additional mass

• Required higher quality casters and more

maneuverable size

Sponsors

Acknowledgements

Barry L Myers-York County Parks Superintendent Jim Leedy-Excavator John Diehl-Kinsley Project Manager Jerry Stultz-Kinsley Superintendent Josh Dewees-Parks Maintenance Mike Culp-Voith Hydro Scott Amereihn-Shop Foreman Wolfe Tool Co Dan Shook-A.E.C.S. Steve Catlett-President of SSE Joshua Carney, P .E.-CEG Becton Dickinson & co-workers Tammy Klunk-Former York County Parks Director Arnold Offner-Phoenix Contact Keith Murr-TE Connectivity Denise Culp-Purchaser