Engineer Engineering
Resume:
Mohammadhossein Sirafi
Everett, WA *****
https://www.linkedin.com/in/mohammadsirafi/ **************@*****.***
SUMMARY OF EXPERIENCE
Accomplished, Energetic and Experienced Structure Analysis Engineer with more than 20 years' experience in conventional (Hand-calculations) and computer based (FEA) structure analysis. Motivated leader with strong organizational and prioritization abilities. Lead Engineering teams in meeting and exceeding technical design and development goals and objectives.
Static /Durability /NVH /Fatigue Analysis Product Development
Linear, Non-linear, Dynamics FEA Codes Structural Testing, Test Plans, Test Reports
Aircraft Composite Structures FEA & Lab Test Correlation
SCN and Report Writing Correlation of FEA and Test Results
Research, Investigate in Interested Areas Project Management
Lead/Coordinate Projects in different levels Judgement and Decision Making
System Evaluation and Analysis Flexibility/Adaptability/Multi-tasking
Engineering Procedures, Regulations and Requirements
Excellent Interpersonal Communication
SOFTWARE SKILLS
Analysis Software: MSC/Nastran, Abaqus, Ls-Dyna, Hypermesh, Ansa, MSC/Patran, ANSA, Matlab, MSC/Sofy, nCode, Design life, Optistruct, iSight, ANSYS(in School), Carsim/Trucksim, B&K( Star software)
MS Office, MS Project, MS Powerpoint,
Enovia, PDM (Signature Authority)
CAD Software: Catia V5, Solidworks, NX(Unigraphics), AutoCAD
Programming Experience: Basic, Fortran, C, Unix script programming
PROFESSIONAL EXPERIENCE
Structural Analysis Engineer 6/2019 to 12/2019
MSB Global Resource Co Wichita, KS
Responsible for stress analysis, design issues and substantiation of parts/assemblies for interior parts in Beechcraft King Air 350i development program.
Developed the FEM models for different monuments (doors, partitions, cabinets, sideledges, tables, side panels, headliners).
Analyzed/Sized parts/assemblies using FEM models and software.
Optimized/Sized parts and assemblies (doors, partitions, cabinets, sideledges, tables, side panels, headliners) in Beechcraft King Air 350i development program.
Structural Analysis Engineer 5/2008 to 5/2019
Boeing Co (Contracts via Volt Workforce & Chiptonross) Everett, WA.
Responsible for stress analysis, design issues and certification of parts/assemblies in 747/767/777 & 777X development programs and airplanes in productions.
Developed the FEM models for varity of monuments and assemblies/parts in galley/ /Fuselage groups.(galleys, lavatories, partitions, doghouses, closets, fittings)
Developed FEM models for development of new programs, 777 New Crown and 777-9 WOWE in Stress Group (Out board, High ladder, Water System, Door 2 Premium Architecture configurations).
Optimized/Sized parts and assemblies of different assemblies in Stress Group using FEM analysis.
Led team of engineers to complete 777 programs (both developement and production projects).
Investigated/Solved the issues related to assemblies/parts for in production and in service airplanes.
Researched/Purposed a new methodology for vertical stiffness of floor in the modeling of interior monuments.
Structural Analysis Engineer 1/2008 to 4/2008
Magnasteyr (Contractor via ETA Inc.) Troy, MI
Responsible for durability analysis and solve design issues of Alfa Romeo and Maserati Convertible bodies.
Investigated the issues for Alfa Romeo C8 convertible body and the CAD data and fixed their issue.
Purposed torsion/bending analysis procedure for convertible Maserati that was used to improve the design.
Updated/Analyzed Vehicle FEM model for analysis of F550/F650/F750 Ford trucks based on natural frequencies separation methodology to re-engineer the Ford's trucks dynamic performance.
Structural Analysis Engineer 9/2006 to 11/2007
Chrysler LLC (Contractor via Belcan Corp.) Auburn Hills, MI
Responsible for new Durability analysis technical development and solve critical issues of Body Durability.
Analyzed/Improved design of doors for LX platform based on durability procedures (stiffness, over check and set/sag analysis).
Modified design of spare tire trunk, battery tray assemblies for LC and LX platforms based on different durability procedures using FEA software.
Analyzed/Improved design of LC trunklid based on slam procedure.
Investigated and solved fatigue critical issues of Magnum body and chassis under special road loads.
Developed Different Durability attribute and analysis SOP (standard operating procedure) for different parts of body.
Structural Analysis Engineer 1/2000 to 9/2006
Ford Motor Company (Contractor via MSX Int. &ETA Inc.) Dearborn, MI
Responsible for Durability analysis and solve issues of U387/U388 and D471 bodies and closures based on analysis and test results, work with designer to modify parts design and meet requested targets.
Responsible for NVH (Noise & Vibration)/Durability analysis and solve NVH(Noise & Vibration) issues of powertrains of D219/D258 and CD338 programs and body of U260 program, based on working with designers and release engineers to improve the components design and meet requested targets.
Analyzed/Sized Hood's design based on hood's margin and flushness analysis for U387/U388 and D471 programs to verify the critical issues with recommendation to the designers to meet the required target.
Improved torsion and bending rigidity of hood and liftgates for benchmark and in the vehicle for U387/U388 and D471 programs to identify the critical issues using different CAE software and to meet the target.
Modified/Sized the design of hood, hinges and liftgate latch over loading of U387/U388 and D471 programs with verifying the critical issues using different software to meet multiple durability targets.
Improved trailer hitch design using fatigue analysis software for U387/U388 and D471 programs to meet fatigue targets.
Sized/Optimized the design of body based on body jacking and frame hoisting for different U387/U388 and D471 programs trim body and recommendation the designers to meet the durability target.
Analyzed/Improved the design of D219 and CD388 body vehicles based on idle powertrain NVH analysis in full vehicle level and recommendations to designers.
Worked successfully with design and release engineer in Body section to improve the car panels and components to meet NVH, CAE targets.
Optimized the NVH characteristics of D219/D258/CD338 powerplants (powerplant bending).
Optimized the NVH/Durability characteristics of CD338 power steering pump and brackets.
Performed 6 sigma projects and optimized Idle NVH for D219/D258 cars in vehicle and subsystem level and investigated/reported the issues related to vehicle NVH though 6 sigma project.
Optimized frequencies of driveline in D219/D258 program using powertrain (driveline frequencies and powertrain bending).
Led the team of few engineers to develop/update FEM data and analyze for D219/CD338 powertrain NVH program.
Worked with related groups to stablish/modify targets for D219/CD338 programs.
Coordinated tests and verified test results required for PT mount system and brackets.
Analyzed/Improved the body design based on torsion and bending analysis of underbody and BIP in U260 program.
Improved/Sized the design of BIW and trim body of U260 program based on normal mode analysis and point mobility at the attachment points.
Analyzed tailgate of a truck in Amazon program based on static stiffness and normal mode analysis.
Structural Analysis Engineer 10/1996 to 5/1999
Irankhodro Automotive Co Tehran, Iran
Responsible for body NVH(Noise & Vibration)/ Durability analysis and NVH(Noise & Vibration), Durability issues in CAE group and release based on CAE targets.
Responsible for performing some safety analysis, Verification of test results and reports.
Improved design of new car by normal mode and torsion and bending analysis of BIW.
Analyzed/Improved the doors and body of new development car based on different procedures and recommendation to design group.
Led the releasing of the drawing through modification of car body.
Consulted with test team to approve the results of a modal test for a car, responsible from CAE-CAD teams in preparing an acceptable passenger car prototypes to test.
Analyzed Front offset crash of new development vehicle body.
Sr. Structural Analysis Engineer 2/1995 to 10/1996
Automotive Industries Research and Innovation Center Tehran, Iran
Responsible for NVH(Noise & Vibration)/ Durability analysis and test correlation of vehicle sub-frames and body structures
Analyzed/improved design of new Iranian car by normal mode analysis of BIW and full vehicle using FEA software.
Performed/improved design though torsion and bending analysis for BIW of new car.
Optimized chassis of new car based on normal mode and torsion and bending of chassis and using MSC/Nastran (SOL200)
Tested several vehicle parts such as a Jeep sub-frame in a modal laboratory using B&K instruments and analyzed and correlated these data.
Developed more than 8 guidelines/reports related to development of current vehicle project.
EDUCATION AND TRAINING
Ph.D. Mechanical Engineering
Oakland University Michigan
(Ph.D. Candidate With courses in NVH and Vehicle Dynamics - GPA 3.91)
Masters of Science, Mechanical Engineering 1992
Sharif University of Technology Tehran, Iran
(Evaluated by World Education Services, Inc., www.wes.org, Ref# 331805/jwc,Date: Oct 19,1999)
Bachelor of Science, Mechanical Engineering 1989
Sharif University of Technology Tehran, Iran
(Evaluated by World Education Services, Inc., www.wes.org, Ref# 331805/jwc,Date: Oct 19,1999)
Catia V5 Certificate (Basic through Advanced in Keltia Design Inc.)
Six sigma Greenbelt Certificate (Ford Motor Company)
AUC training (Abaqus for Catia Training)
FMEA training at Educational Center (Chrysler Technical Center)
Vehicle NVH course (Oakland University)
Vehicle Dynamics course (Oakland University)
Acoustic & Noise Control course (Oakland University)
Auto Engineering Design course (Oakland University)
Mech. Eng. CAD/CAM Systems course ( with ANSYS, Oakland University)
Optimize and Analytical Robustness and Reliability seminars in 6 sigma
FESTO's pneumatic and electro-pneumatic seminars
AutoCAD training
SELECTED PUBLICATIONS
1)Kargarnovin M.H., Sayrafi M.H. "Vibration analysis of a small supersonic wing under variation of five geometry parameters ", ASME-ESDA conference, July 4-7 1994, London, ENGLAND,
2)Kargarnovin M.H., Sayrafi M.H. " Study of fluttering in a small supersonic wing upon change of orthotropic direction and thickness of wing's material ", 12th symposium on engineering applications of mechanics, 20-22 June, 1994, McGill University, Montreal, CANADA,
3)Kargarnovin M.H., Sayrafi M.H. "The effect of boundary condition on time response of a small wing with supersonic velocity under aerodynamic and aeroelastic forces", 15th conference CANCAM'95, Victoria University, Victoria, May25 to June 2, 1995, CANADA,
4)Kargarnovin M.H., Sayrafi M.H. "Time response vs. change of leading sweep angle and wing aspect ratio of a small wing under aerodynamic and aeroelastic forces in supersonic range", First MEATIP conference, Dec 27-29, 1994, Assiut, EGYPT,
5)Kargarnovin M.H., Sayrafi M.H. " Vibrational response vs. change of tailing sweep angle, tip angle and wing's thickness of a small wing under aerodynamic and aeroelstic forces in supersonic range ", International conference of computational engineering science, Mauna Lani, Hawaii, 30 June- 3 Aug 1995, USA
6)Sayrafi M.H., Mohtasebi M.H. "Static and Dynamic analysis of adapter and nozzle of a missile with different models and boundary conditions and comparing with test " 3th annual conference of ISME, Amir Kabir University, 20 May- 24 May 1995, IRAN
7)Qatu M., Sirafi M., Johns F. "Robustness of powertrain mount system for noise vibration and harshness at idle" IMechE 2002, Journal of Automobile Engineering, Vol 216, pp. 805-810,
8)Qatu M., Sirafi M., Johns F. "Robustness of powertrain mount system for noise vibration and harshness at idle "inter.noise 2002, The 2002 International Congress and Exposition on Noise Control Engineering Dearborn, MI, USA, August 19-21 2002,
9)Sirafi M., Qatu M. "Accurate Modeling for the Powertrain and Subframe Modes "SAE Paper No. 200*-**-****, SAE Noise & Vibration Conference and Exhibition May 5-8, 2003, Grand Traverse Resort, Traverse City, Michigan, USA
10)Sirafi M., Chang Y., Qatu M. "Robustness of Mount System for Idle NVH, Part I: Center of Gravity (CG) mounts "International Journal of Vehicle Noise and Vibration, volume 2, Issue 4, pp 317-333
11)Sirafi M., Chang Y., Qatu M. "Robustness of Mount System for Idle NVH, Part II: Pendulum Mounts "International Journal of Vehicle Noise and Vibration, volume 2, Issue 4, pp 334-340
AWARDS & RECOGNITIONS
Acknowledging Exceptional Performance, 777X Sec48 Fuselage (Boeing Co.). Acknowledging Exceptional Performance, 777-300ER New Crown (Boeing Co.).
Contact this candidate