TJ Jayaratne
Sr Project Engineer at Virgin Galactic- Claim this Profile
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Bio
Experience
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Virgin Galactic
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United States
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Aviation and Aerospace Component Manufacturing
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700 & Above Employee
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Sr Project Engineer
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May 2022 - Present
Washington, District of Columbia, United States
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Manager, Spaceship3 Airframe Stress
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Jun 2021 - Jul 2022
- Acted as technical, programmatic and personnel lead for SpaceShipThree stress team responsible for substantiation of entire spacecraft airframe, strength check notes generation, analysis of modifications, and MRB. - Coordinated directly with Chief Engineer, Program Manager, Project Engineers and Engineering Leadership with regard to scope, budget, schedule, status and risks. - Developed data-based methods to estimate scope/man-hours, built and maintained MS project schedule for stress… Show more - Acted as technical, programmatic and personnel lead for SpaceShipThree stress team responsible for substantiation of entire spacecraft airframe, strength check notes generation, analysis of modifications, and MRB. - Coordinated directly with Chief Engineer, Program Manager, Project Engineers and Engineering Leadership with regard to scope, budget, schedule, status and risks. - Developed data-based methods to estimate scope/man-hours, built and maintained MS project schedule for stress and provided timely and accurate program status updates. - Developed structural substantiation matrix that lays down the path for substantiation of all airframe structure by analysis or test or a combination. - Defined M&P Tests, Large-Scale Tests, In-Vehicle Ground Tests required for substantiation, supported test plan generation, approved test plans and reports, and supported execution of tests. - Authored documentation such as Program Loads, Methods and Allowables (LMA) document, stress manual sections etc, - Trained and mentored young engineers across the program with one-on-one mentoring and by establishing a series of weekly Lunch-and-Learn sessions. - Supported multiple Flight Tests of SpaceShipTwo, including 3x spaceflights as Flight Controller at Loads/Structures Console in Mission Control Center(MCC) - Trained in 50+ MCC simulator sessions for various system failure scenarios - Supported flight test plan generation, pre-flight test activities such as FRR, post-flight test activities such as data reduction and data reviews
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Group Lead, Spaceship3 Airframe Structures Design
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Jun 2020 - Jun 2021
Mojave, CA - Led design and MRB teams through last major structural closeouts on SpaceShipThree Imagine and Rollout of vehicle. - Coordinated directly with Chief Engineer, Program Manager, Project Engineers and Engineering Leadership with regard to scope, budget, schedule, status and risks. - Led the design, reviewed and approved all Thermal Protection System (TPS) drawings on vehicle. - Designed and released modifications to mitigate structural issues. - Acted as primary structures MRB… Show more - Led design and MRB teams through last major structural closeouts on SpaceShipThree Imagine and Rollout of vehicle. - Coordinated directly with Chief Engineer, Program Manager, Project Engineers and Engineering Leadership with regard to scope, budget, schedule, status and risks. - Led the design, reviewed and approved all Thermal Protection System (TPS) drawings on vehicle. - Designed and released modifications to mitigate structural issues. - Acted as primary structures MRB approver for SpaceShipThree Imagine. - Trained and mentored a young team of design engineers to develop their skills in not only design, but structural analysis as well.
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Group Lead, WK2-002 Airframe Structures
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Jan 2020 - May 2020
- Acted as Structures IPT lead for conceptual design of next generation carrier aircraft. - Supported Chief Engineer to develop preliminary structural requirements and structural substantiation plan. - Developed preliminary loads for a variety of configurations such as longer wing spans and different wing layouts. - Performed preliminary sizing and trade studies for different wing box configurations based on weight and manufacturing requirements. - Program canceled due to onset of… Show more - Acted as Structures IPT lead for conceptual design of next generation carrier aircraft. - Supported Chief Engineer to develop preliminary structural requirements and structural substantiation plan. - Developed preliminary loads for a variety of configurations such as longer wing spans and different wing layouts. - Performed preliminary sizing and trade studies for different wing box configurations based on weight and manufacturing requirements. - Program canceled due to onset of pandemic
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Group Lead, IPT Spaceship3 Fuselage
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Nov 2018 - Jan 2020
Mojave, California Integrated Project Team (Design/Stress) Lead for SpaceShipTwo Fuselage - Led design and stress teams for successful release of all engineering drawings for SpaceShipThree Fuselage - Led design/stress/MRB teams through build of SS3 fuselage and completion of Weight-on-Wheels milestone for SS3, dispositioning most fuselage non-conformances as primary MRB engineer. - Was responsible for coordination with Chief Engineer and Program Manager, setting priorities, maintaining schedule and… Show more Integrated Project Team (Design/Stress) Lead for SpaceShipTwo Fuselage - Led design and stress teams for successful release of all engineering drawings for SpaceShipThree Fuselage - Led design/stress/MRB teams through build of SS3 fuselage and completion of Weight-on-Wheels milestone for SS3, dispositioning most fuselage non-conformances as primary MRB engineer. - Was responsible for coordination with Chief Engineer and Program Manager, setting priorities, maintaining schedule and providing guidance on proper design and analysis methods. - Reviewed and approved all engineering drawings and strength check notes - Supported the definition and review of all relevant M&P Tests and Large Scale Tests - Built the detailed finite element breakout model of the fuselage including meshing, mass balancing, loads application and validation checks - Led a cross-functional team (stress, design, manufacturing R&D, M&P) through the qualification of high temp BMI composite material system and build of the first for-flight parts.
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Stress Engineer
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May 2017 - Nov 2018
Mojave, California - Acted as Stress Lead for SpaceShipThree Fuselage - Led the team to redesign and optimize entire spacecraft fuselage structure to meet loads, design and aggressive weight targets. - Trained fuselage stress engineers and gave guidance on proper analysis methods, - Reviewed and approved analysis packages and engineering drawings.
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National Institute for Aviation Research
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United States
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Airlines and Aviation
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300 - 400 Employee
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Research Engineer
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Aug 2011 - May 2017
Wichita, Kansas Area - Managed a team of engineers and graduate assistants to complete external structural analysis contracts and composite research programs - Performed structural analysis of various composite aircraft structures using Finite Element Analysis and Hand calcs. - Managed test programs performing tasks such as defining test matrices, writing test plans, scheduling, and writing technical reports - Developed a methodology to model damage growth in sandwich composites for GAG cycling using VCCT… Show more - Managed a team of engineers and graduate assistants to complete external structural analysis contracts and composite research programs - Performed structural analysis of various composite aircraft structures using Finite Element Analysis and Hand calcs. - Managed test programs performing tasks such as defining test matrices, writing test plans, scheduling, and writing technical reports - Developed a methodology to model damage growth in sandwich composites for GAG cycling using VCCT & Cohesive Zone methods - Performed Analysis and sizing of composite structural repairs - Developed a methodology and tool to generate virtual allowables for composites incorporating statistical methods and variability in composites. - Designed composite parts to meet customer requirements for performance and manufacturability - Analyzed Environmental and hygro-thermal effects on composite materials - Correlated composites test results using finite element analysis - Performed hands-on work in the manufacturing & testing of composite materials. - Designed and analyzed structural test fixtures. Show less
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Education
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Wichita State University
Master of Science, Aerospace Engineering -
Wichita State University
Bachelor of Science, Aerospace Engineering