April 23rd, 2014 6:00 pm
Irvine Duck Club
5 Riparian View
Irvine, Ca 92612
Irvine Duck Club
5 Riparian View
Irvine, Ca 92612
|
Abstract:
Stress analysis is an essential part of the design process for ensuring structural integrity of spacecraft structures, payloads, and mechanisms. It is also an indispensable tool for optimizing structural design and meeting multidisciplinary performance requirements. Some of the facets of stress analysis include: Identifying the Structural, Material, and Performance Requirements, laying out the Primary Load Paths, conceptualizing Candidate Structural Designs and Performing Configuration Trade Studies, characterizing and Selecting the Materials, performing the Preliminary Sizing and Stress Analysis, Analytically Demonstrating that the Structure Meets the Structural and Performance Requirements – Finite Element Analysis, Developing Plans for Structural Verification Testing, Correlating the Analysis and Test Results, Supporting Design, Test, and Safety Reviews, Preparing Stress Reports and other Documentation. In this presentation, I will discuss these facets in detail, and highlight how these relate to the material selection and testing. Additionally, some real-world examples based on working experience will be covered.
Stress analysis is an essential part of the design process for ensuring structural integrity of spacecraft structures, payloads, and mechanisms. It is also an indispensable tool for optimizing structural design and meeting multidisciplinary performance requirements. Some of the facets of stress analysis include: Identifying the Structural, Material, and Performance Requirements, laying out the Primary Load Paths, conceptualizing Candidate Structural Designs and Performing Configuration Trade Studies, characterizing and Selecting the Materials, performing the Preliminary Sizing and Stress Analysis, Analytically Demonstrating that the Structure Meets the Structural and Performance Requirements – Finite Element Analysis, Developing Plans for Structural Verification Testing, Correlating the Analysis and Test Results, Supporting Design, Test, and Safety Reviews, Preparing Stress Reports and other Documentation. In this presentation, I will discuss these facets in detail, and highlight how these relate to the material selection and testing. Additionally, some real-world examples based on working experience will be covered.
Bio:
Richard Bahng has over 20 years of experience in aerospace structural design, analysis, and testing, and is currently a Principal Structural Analyst at ATK Space Components Division in Commerce, California. Richard Bahng received his B.S. and M.S. in Mechanical Engineering from University of California, San Diego. In 1994-2004, he worked as a Member of Technical Staff for Northrop Grumman Corporation in rocket propulsion, spacecraft and electronic packaging design, structural analysis, and mechanical testing. In 2004-2006 he worked as a Senior Mechanical Engineer for Raytheon Company in El Segundo, California in optical design and analysis. Since 2006, Richard Bahng has been working at ATK Space Systems Company in Los Angeles as a Principal Stress Analyst. He has been involved in numerous projects in his career:
• Designer and Analyst for the Deployment Mechanism, Landing System, and Wheels on the NASA JPL Mars Science Laboratory Curiosity Rover
• Analysis of the robotic tools that will used to autonomously refuel depleted spacecraft in orbit – tools were recently demonstrated on the International Space Station.
• Thermal Stability Analysis of the Composite Structure used in the James Webb Space Telescope.
• Design and Stress/Fracture Analysis of Propellant Tanks and Pressure Vessels used in Lockheed Martin, Boeing, Orbital Sciences, and NASA spacecrafts
• Design of Meteorological Spacecraft used by NOAA/NASA: AMSU (Advanced Microwave Sounding Unit), SSMIS, and ATMS (Advanced Thermal Mapping Sensor), JPL GRAIL
• Optical Performance Design for High Performance Spacecraft Sensors (Global Hawk Unmanned Aerial Vehicle Infrared/Electro-optical Sensor, SBIRS Low Earth Orbit Satellite)
• Propulsion System Analysis for the Minuteman III and Peacekeeper Intercontinental Ballistic Missiles
• Mechanical Testing: Vibration and Modal Testing
Richard Bahng has over 20 years of experience in aerospace structural design, analysis, and testing, and is currently a Principal Structural Analyst at ATK Space Components Division in Commerce, California. Richard Bahng received his B.S. and M.S. in Mechanical Engineering from University of California, San Diego. In 1994-2004, he worked as a Member of Technical Staff for Northrop Grumman Corporation in rocket propulsion, spacecraft and electronic packaging design, structural analysis, and mechanical testing. In 2004-2006 he worked as a Senior Mechanical Engineer for Raytheon Company in El Segundo, California in optical design and analysis. Since 2006, Richard Bahng has been working at ATK Space Systems Company in Los Angeles as a Principal Stress Analyst. He has been involved in numerous projects in his career:
• Designer and Analyst for the Deployment Mechanism, Landing System, and Wheels on the NASA JPL Mars Science Laboratory Curiosity Rover
• Analysis of the robotic tools that will used to autonomously refuel depleted spacecraft in orbit – tools were recently demonstrated on the International Space Station.
• Thermal Stability Analysis of the Composite Structure used in the James Webb Space Telescope.
• Design and Stress/Fracture Analysis of Propellant Tanks and Pressure Vessels used in Lockheed Martin, Boeing, Orbital Sciences, and NASA spacecrafts
• Design of Meteorological Spacecraft used by NOAA/NASA: AMSU (Advanced Microwave Sounding Unit), SSMIS, and ATMS (Advanced Thermal Mapping Sensor), JPL GRAIL
• Optical Performance Design for High Performance Spacecraft Sensors (Global Hawk Unmanned Aerial Vehicle Infrared/Electro-optical Sensor, SBIRS Low Earth Orbit Satellite)
• Propulsion System Analysis for the Minuteman III and Peacekeeper Intercontinental Ballistic Missiles
• Mechanical Testing: Vibration and Modal Testing
