Expert Details

Expert in Structural Analysis, FEA

Expert ID: 108129 Massachusetts, USA

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ROTATING EQUIPMENT FAILURE ANALYSIS. Expert has applied his knowledge of the finite element method and his field experience with hardware to evaluate, analyze, and upgrade the design of a wide range of rotating equipment. He has worked with fans, compressors, mills, centrifuges, impellers, and other equipment.

STRESS ANALYSIS; STRUCTURAL ANALYSIS. Expert provides his clients with cost-effective stress and deflection analysis of their rotating equipment. In situations where analyses results do not meet the specifications or when an upgrade is required by the client, Expert can recommend design or material changes to lower stresses or deflections to meet the allowable limits. He has performed over 100 analyses of different rotating equipment.

MODAL ANALYSIS. Expert also provides vibration analysis of rotating equipment to determine natural frequencies and mode shapes of vibration. He identifies the frequencies that can be detrimental to the operation of the hardware and can recommend design changes to shift or eliminate these frequencies so that the hardware operates safely.

LOW-CYCLE FATIGUE. Welded rotating equipment operating under start/stop conditions require scheduled inspections to ensure that fatigue cracks are detected before reaching a critical size. Fatigue life prediction of rotating equipment can help optimize the inspection schedules. Expert provides fatigue life estimation based on stress and low-cycle fatigue analyses. In other situations, where a minimum fatigue life may be required by the client, Expert can help modify the design to obtain the needed fatigue life by lowing the stress levels in the critical regions.

SUPERCONDUCTING MAGNET. Using his knowledge of finite element-based software, Expert has determined the magnetic field and resulting stresses in conventional and superconducting magnets. He determined the distribution and magnitude of the magnetic field using ANSYS. These fields resulted in forces acting on the conductors in the magnet. The force distribution from electromagnetic analysis was then used to determine deflections and stresses in the magnet.

HIGH-TEMPERATURE PIPING SYSTEM. Expert was responsible for the redesign of a furnace where uncontrolled sagging and shadowing of pipes had resulted in uneven radiative heating and reduced hydrocarbon cracking. The results f's analysis called for a redesign, which worked perfectly in the field.

COMPUTER FINITE ELEMENT ANALYSIS; FINITE ELEMENT MODELING. Expert has applied his knowledge of finite element analysis to the design analysis, failure analysis, and verification of a variety of components and systems. He has performed linear and nonlinear finite element analysis to ensure that static, dynamic, and thermal characteristics of a composite structure were within functional specifications. The finite element software he has used include ANSYS, NASTRAN, INERTIA, WECAN, ALGOR, COSMOS, and IDEAS.


Expert was retained as a structural analyst in a $180 million law suit. He determined, through finite element analysis that the design of a particular furnace (with high-temperature piping) was defective. As a result of his analysis, the suit was settled out of court. He was then retained to redesign the system.He found deficiencies in the design of a series of industrial fans. The findings led to field inspections, revealing fatigue cracks in the fans. His design modifications saved millions of dollars in replacement costs. Expert modified the design of a rotary mill for higher throughput, increasing the capacity of the mill by 22% and reducing the development time by 6 months.Expert analyzed the design of a 500 ton ore crusher and modified the design to meet stringent requirements for static, and dynamic loads, and infinite fatigue life.

Expert may consult nationally and internationally, and is also local to the following cities: Boston, Massachusetts - Worcester, Massachusetts - Springfield, Massachusetts - Lowell, Massachusetts - Cambridge, Massachusetts - Brockton, Massachusetts - Hartford, Connecticut - Waterbury, Connecticut - Manchester, New Hampshire - Providence, Rhode Island

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Education

Year Degree Subject Institution
Year: 1976 Degree: PhD Subject: Engineering Mechanics Institution: University of Tennessee-Knoxville
Year: 1973 Degree: MS Subject: Engineering Mechanics Institution: University of Tennessee-Knoxville
Year: 1970 Degree: BS Subject: Mechanical Engineering Institution: University of Toledo

Work History

Years Employer Title Department Responsibilities
Years: 2001 to Present Employer: Undisclosed Title: Professor Department: Mechanical Engineering Responsibilities: He teaches CAD/CAE, and Mechanical Design related courses.
Years: 1995 to 2000 Employer: Design Analysis Associates Title: Principal Department: Responsibilities: He was responsible for the design analysis of rotating equipment using FEA. He also performed the analysis of hardware and components for a variety of industrial applications using FEA.
Years: 1990 to 1995 Employer: Howden Sirocco Inc. Title: Senior Mechanical Engineer Department: Responsibilities: He was responsible for structural design and analysis of industrial rotating air movement equipment, involving static and dynamic finite element analysis. Other responsibilities included fatigue, failure analysis, and product research and development.
Years: 1989 to 1990 Employer: Thielsch Engineering Associates Title: Senior Mechanical Engineer Department: Responsibilities: He applied finite element analysis expertise to design analysis, failure analysis, and verification of components and systems. Other responsibilities included managing the creep testing laboratory.
Years: 1988 to 1989 Employer: Advanced NMR Systems Title: Project Engineer Department: Responsibilities: He was responsible for structural design, analysis, cooling, and acoustic isolation of a two ton cylindrical pulsed magnet used in magnetic resonance imaging. Performed linear and nonlinear finite element analysis to ensure that static, dynamic, and thermal characteristics of this composite structure were within functional specifications.
Years: 1985 to 1988 Employer: Construction Products Division, W. Title: Research Engineering Associate Department: Responsibilities: He was responsible for all structural and thermal analysis and testing of Grace's products. His main responsibilities included structural analysis and testing of light insulating concrete diaphragms, composite membrane analysis, as well as directing the research and development of thermal measurements laboratory.
Years: 1982 to 1985 Employer: Stone & Webster Engineering Corporation Title: Staff Engineer Department: Responsibilities: As staff specialist, he was responsible for a variety of engineering tasks in areas of stress analysis, vibration, and heat transfer, using the finite element method.
Years: 1980 to 1982 Employer: Western New England College Title: Assistant Professor Department: Responsibilities: He developed and taught a finite element methods course to the senior class.

Career Accomplishments

Associations / Societies
He is a member of ASME.
Licenses / Certifications
Expert is a Registered Professional Engineer in the States of Massachusetts and California.
Publications and Patents Summary
He has 7 publications, and is the contributing author for the handbook of Applied Thermal Design.

Additional Experience

Expert Witness Experience
Expert was retained as a structural analyst in a $180 million law suit. He determined, through finite element analysis that the design of a particular furnace (with high-temperature piping) was defective. As a result of his analysis, the suit was settled out of court. He was then retained to redesign the system.

Vendor Selection
Expert has experience locating vendors of finite element analysis software and solid modeling software.

Language Skills

Language Proficiency
Farsi Fluent

Fields of Expertise

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