Mechanical Engineer Supply Chain

Nader Sadaghdar **** Williams Dr. Apt. ***, Oxnard, CA,93036

m.n.sadaghdar3 @gmail.com • 909-***-****

Mechanical and Structural Engineering

Executive Summary

• Registered Mechanical Engineer (PE) with 20+ years in Airframe and Systems.

Stress and fatigue analyses of primary and secondary, metallic structures.

Experience in a variety of analyses including static, dynamic, loads, fluid flow, thermal, heat transfer Kinematics

Classical hand calculation methods (Stress justification, stiffness, strength, stability, layout sizing, brackets, joints, fittings, splices& fasteners checks) for military and commercial aircrafts.

Prepared substantiation reports per FAR 25 for airplane certification.

Proficient in Finite Element Modeling, verification and validation linear and non- linear systems.

Proficiency in interfacing with internal and external customers and supply chain management.

Core Skills& Trainings

FEA: ANSYS Work Bench for static, dynamics, fatigue, buckling. DaDT.

Familiar with Boeing Commercial methods: Books 1 – 4, FAA certification.

Experience with test standards: MIL-STD-810 & RTCA-DO-160

Systems: CATIA V5, UNIGRAPHICS/NX, AutoCAD, Inventor, Solid Works, Mathcad, UNIX, SAP.

AIS 9100, ISO 9000, ASTM, ASME specifications. Composite. MS Office (Excel, Access, Words, Power Point). Lean tools and methods. MRB, Team Center and Leadership skills.

License

P.E. ME. California Board for Professional Engineers. License No. M27538, since 1991.

Professional History

Chipton-Ross Florida, Inc,

Physical Work Company Name:

Boeing, Everett, WA 10/2023 to 9/2024

Structural Analysis Engineer 3

As a contractor supported BCA Everett Systems Stress for certification of 777-9 and 777-8F aircrafts; ensuring Electrical Equipment and Electrical Installations are able to withstand the stresses they may encounter while in service, using Boeing tools and methods.

PTI Technologies, Oxnard, CA 10/2019 to 10/2023

Structural Analysis Engineer

Lead static, dynamics and durability analysis of hydraulic components, manifold, tubing and support brackets using ANSYS FEA and hand calculations from proposal concept through verification, validation and production.

Strength substantiation of aircrafts hydraulics with ANSYS FEM and Mathcad.

Developed structural math models for F-15 and KFX aerial refueling receptacle to develop interface and internal loads and stresses to verify structural integrity. Conducted shock, harmonics, random, impulse and transient and fatigue as well as the associated testing activities

Cobham Mission Systems, Davenport, IA 10/2016 to 10/2019

Principal Stress Analyst

Supported the new development of in-flight refueling system (CDS for KC46), as well as sustaining activities of legacy Sargent Fletcher line of products (aerial refueling equipment and fuel tanks).

Responsible for stress analysis on KC46 aerial refueling. Supporting static tests.

Lead, mentored and coordinate other engineers on KFX fuel tank and pylon.

Strength substantiation of hydro-mechanical systems with ANSYS FEM.

Conducted and directed various types of analysis including static, dynamic, and fatigue.

Lead and coordinated with other engineers. Supported the associated testing activities.

Created of related documentation in support of aircraft certification

Rockwell Collins Electro-Mechanical Systems-Irvine, CA 11/2012 to 4/2016

Stress Analyst

As Butler contractor was tasked, full time, to ANSYS Finite Element Analysis of Airbus A350XWB Linear geared actuation system, pilot controls and Rudder/ Brake. It included linear and nonlinear stress, fatigue, stress corrosion at detailed components and modal and dynamics (frequency response) at system level.

Became focal, leading cost reduction effort of Boeing 787 Pilot Control Modules.

Performed Stress Analysis of linear and non-linear mechanisms, using ANSYS Workbench.

Wrote strength substantiation reports for PDR, CDR and FAA certification. Calculated damage index due to High Level Short Duration (HLSD) loading of electro-mechanical actuation.

UTC (Formerly Goodrich Aerostructures), Chula Vista, CA, 91910 2/2006 to 10/2012

Stress Engineer IV

Structural static strength, fatigue and dynamic (sonic fatigue) analyses of Composite/ Metallic nacelle components, leveraging hand calculation (Mathcad and Excel), and Nastran/ Patran FEA. Supported the completion of C-5 Super Galaxy EBU and pylon, 737 NG inlet cowl and 787 thrust reverser reports.

Achieved business plan of cost and weight reduction through alternate material selection and design simplification.

Completed the strength substantiation reports for the Supplemental Type Certification (STC) of the Boeing 707-300 re-engine kit consisting of: inlet, EBU, thrust reverser, exhaust nozzle, and strut systems per FAR 25 & 33 requirements.

Developed Patran model for a new nacelle. Validated FEM by modal and rigid body dynamics.

Supported the 787 Nacelles Static Strength and Damage Tolerance reports for Certification.

MRB disposition of 160+ parts for 787 and C-5 airplanes. Provided DaDT and sustaining activities.

Boeing Commercial Aircraft in Long Beach, Ca. 5/2005 to 12/2005

Stress Analyst

As Triad Systems contractor was assigned to Boeing to perform hand calculation for strength substantiation of reworked parts, antenna displacement, and interior using classical methods.

Performed Durability and Damage Tolerance (DaDT), residual strength, crack growth and fatigue life prediction 747 parts per Boeing’s design manuals and software’s.

Rapiscan Security Products, Hawthorne, CA 90250 9/1998 to 1/2005

Sr. Mechanical Engineer

Lead the mechanical development of a new product for security inspection at airport and border crossing.

Planed projects and executed to the plan with attention to detail. Architected civil, Mechanical and Structural system for Large Cargo X-Ray Inspection System using AutoCAD and Inventor.

Built Cad model (castings, structural steel collimators, positioning mechanisms, frames, electronics enclosure, lifting and mounting fixtures).

Originated design and detailed steel structures and layouts for security systems.

Provides direction, both technically and programmatically, to manufactures and suppliers.

Water Resources Industries, Overseas 1991 to 6/1998

Mechanical Engineer

Built and lead an engineering team to design hydro- electro mechanical products. Managed the engineering team’s effort and time within the budget and schedule. Prepared presentations and reported project status periodically.

Made standards for feasibility studies prepared proposals for new projects.

Lead the team from design to shop fabrication of a pump station and distribution.

Managed projects from concept to fabrication, equipment selection and installation.

Sargent-Fletcher Company, El Monte, CA, 91731 1985 to 1991

Stress Engineer

Introduced ANSYS FEA for the first time. Increased in house capability for modal, dynamics and acoustic analyses, reducing out sourcing and analysis time. Responsible for using both ANSYS finite elements

Prepared formal loads, stress, buckling, modal analyses and test reports of external mounted electronics pods, fuel tank refueling pod.

Prepared detailed structural/dynamic analyses, mass properties, inertias and aerodynamic loads reports for military aircrafts (Harrier, F-15, F-16, F-18, C130 and 707).

Lead all phases of functional testing, including writing test plan, calculating static test loads, specifying fixtures and hydraulic jacks. Personally mounted strain gages, collected data, and interpreted results. Provided oversight for vibration and acoustic tests.

Salsbury Industries, Los Angeles, CA 1984 to 1985

Project Engineer

With limited direction had considerable latitude to finish the design and validation of clutch-brake mechanism. Lead machine shop production. Wrote standard work for CNC programming. Made significant Reduction on vibrations of automatic torque converter for Club Cars.

Education

M.S. Mechanical Engineer. University of Bridgeport, Bridgeport, Connecticut 5/1982

B.S. Mechanical Engineer. University of Bridgeport, Bridgeport, Connecticut 5/1980

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