Expert Details
Structural Analysis, FEA
ID: 108129
Massachusetts, USA
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.
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 |
|---|---|---|---|
| Years: 2001 to Present | Employer: Undisclosed | Title: Professor | Department: Mechanical Engineering |
Responsibilities:He teaches CAD/CAE, and Mechanical Design related courses. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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| Years | Employer | Title | Department |
| 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. |
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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
finite element analysis, finite element analysis software, finite element method, finite element modeling, low-cycle fatigue, modal analysis, nonlinear finite element analysis, rotating machinery failure analysis, stress analysis, structural analysis, superconducting magnet, impeller vibration, magnetic field measurement, fatigue measurement, finite element model correlation, solid modeling, rotating machinery reliability improvement, rotating machinery reliability, vibration modal analysis, computational heat transfer analysis, yield strength, thermal load analysis, fan application, fatigue testing, magnetic field effect, magnetic field theory, computer simulation, pressure piping system, finite element analysis training, magnetic field, thermal analysis, impeller, fatigue, fan, creep, Cosmos software