About
About me
I am an enthusiastic Mechanical Engineer based in Houston, Texas, with a rich experience of over 15 years in product design & development.
I design and improve products.
CAD and Analysis Software: Proficient in various modeling, drafting, FEA, CFD, and dynamics simulation tools including Autodesk Inventor, SolidWorks, Siemens NX, ANSYS, and Autodesk CFD.
Programming: Skilled in MATLAB, Simulink, Mathcad, and Arduino.
Project Management: Experienced with SolidWorks Vault (PDM), Siemens Teamcenter, and SAP.
Other Skills: Product development, project management, manufacturing, data analysis, and GD&T
Experience
Lead Mechanical Engineer
I have responsibly to led a team of 3 personnels to help, supervise and approve their designs to make sure it matches stakeholders expectations. Developed comprehensive multi-body dynamics (MBD) models for rotary inspection machines, enabling detailed analysis of system interactions and performance. Formulated control strategies for linkages and actuators, facilitating dynamic simulations that predict the behavior of mechanical systems under various operating conditions. Analyzed fluid flow paths within the rotary inspection machines to optimize performance. Conducted finite element analysis (FEA) on rotary machine components and sub-assemblies to assess stress, strain, and corrosion wear limits. Engaged in design iterations and optimization studies to identify optimal design solutions that meet specifications and customer requirements. Utilized simulation data to refine designs, improving overall functionality and durability of the rotary inspection machines.
Senior Mechanical Engineer
I integrated advanced analytical techniques like FEA and CFD with robust design practices ensures the development of high-performance components capable of enduring harsh downhole conditions. Designed and improved Mud Motor power transmission systems and Shock Tools. Engineered several innovative and robust components specifically designed to perform reliably under harsh downhole conditions encountered during operation. Actively participated in technical design reviews of products and contributed to the development of design requirement documentation, ensuring alignment with project goals. Provided engineering support and solutions to vendors as needed to facilitate the manufacturing of components and parts, ensuring adherence to design specifications.
Senior Manufacturing Engineer
I contributed to troubleshoot, innovative tool design, in-house repair processes, VSM initiatives, HSE coordination, cross-functional collaboration, technical assistance, PFMEA analysis, and created a robust framework for enhancing manufacturing efficiency. Developed and facilitated engineering support tools to enhance operational efficiency. Guided the production department in identifying and resolving technical issues, ensuring smooth operations. Utilized SolidWorks to design and procure fixtures and tools essential for manufacturing processes. Implemented a cost-effective in-house repair process that significantly reduced lead times for repairing tools. Collaborated with stakeholders to conduct VSM on new tools, focusing on identifying build times, fixtures, procedures, checklists, and routers. Provided engineering dispositions for suppliers' Requests for Assistance (RFA) and addressed field-submitted Requests for Technical Assistance (RTA).
Design Engineer II
Designed advanced obstacle detection and proximity sensing systems to enable autonomous operation of mining tools and equipment. Collaborated with cross-functional teams including mechanical, electrical, and software engineers to implement automation features
New Product Development Engineer
Developed detailed 3D models and 2D production drawings of components, assemblies, and Bills of Material (BOM) using CAD software. Utilized SolidWorks Simulation and ANSYS Static Structure for design verification and validation, ensuring structural integrity under operational conditions. Engineered single and double shoulder thread connections, calculating make-up torque, tensile load capacity, and Dog Leg Severity in accordance with API 7G2 and DS1 standards. Calculated collapse pressure for Core Barrels in compliance with API 13D & 5C3 specifications to ensure safety and reliability in drilling operations. I have own a Technical Achievement Award in 2014 for successfully launching a new product.
Value Analysis and Value Engineering (Contractor)
Executed cost optimization strategies through innovative design approaches for locomotive engine cooling, ventilation, and compressed air subsystems, enhancing efficiency while reducing overall costs. Conducted static structural analysis to assess the design under 3g buff and lift loads using ANSYS Workbench, ensuring compliance with safety standards. erformed modal analysis to evaluate natural frequencies and vibration modes, identifying potential issues that could affect performance and longevity.
Technical Consultant (Suzuki Motor Corporation, Japan)
Responsible for 3D modeling, assembly and 2D drafting of the different motor bike’s parts, wheel, hub, chain case, front fork, light cover and cowling by using NX5. Translated Suzuki Motor Corporation’s NX5 basic training and surface modeling from Japanese to English. Analyzed NX3 CAD data upgrade to NX5 version. Assisted class training instructors for solid modeling.
Assistant Engineer
Responsible for production planning and scheduling in accordance to market/internal demand and plant capacity. Generated WO paperwork for production. Generated and provided production reports and status to the management team.
My Skills
I believe in the fact that learning never stops and I am interested in learning new technologies that will help me design and develop a better output in less time.
PUBLICATIONS
Authors: Mosfequr Rahman and Masud Nawaz
2011
Finite element modeling analysis of photostrictively driven optical actuators for Excitation of Microdevices
Photostriction is a phenomenon in which strain is induced in the sample by incident light. In principle, this effect arises from a superposition of the photovoltaic effect, i.e. the generation of large voltage from the irradiation of light, and the converse piezoelectric effect, i.e. expansion or contraction under the voltage applied. Photostrictive materials are ferrodielectric ceramics that have a photostrictive effect. Some photostrictive materials are (Pb, La)(Zr, Ti) O3 ceramics doped with WO3, called PLZT, which exhibit large photostriction under uniform illumination with high-energy light. They have potential use in numerous micro-electro-mechanical system (MEMS) devices where actuation of microbeams is a common phenomenon.
Authors: Mosfequr Rahman, Masud Nawaz, John E. Jackson
2011
Experimental Investigation on the Use of Photostrictive Optical Actuator for MEMS Devices and Verification With the FEA Modeling Results
Photostrictive materials are lanthanum-modified lead zirconate titanate (Pb, La)(Zr, Ti) O3 ceramics doped with WO3, called PLZT, exhibit large photostriction under uniform illumination of high-energy light. Some experimental research has been conducted on the use of PLZT materials, such as optical motor as an electromechanical device suitable for miniaturization, micro-waking machine, photo driven relay device using PLZT bimorphs and high speed (less than 10 ns), low-voltage, low power consumption optical switch.
Authors: Masud Nawaz, Aniruddha Mitra
2012
A study on effect of foam on the vibration quality of aluminium structure under combined loading
Foamed structures are being used in the body of vehicles and act as a shock-absorbing component under impact loading. Previous studies explored the impact and buckling resistances of foamed aluminum tubes. The purpose of this current study was to investigate the effect of introduction of foam on the damping characteristics of an aluminum tube under vibration. Two identical "L" shaped aluminum tubes were used for the experiment with one filled with structural foam. The "L" cantilever beams were chosen over the straight beam to simulate a more realistic combined loading condition of bending and torsion. The natural frequency of the system was determined analytically. The experimental results were compared and showed an acceptable level of error. The damping ratio of the aluminum tube with the foam showed an average increase of about forty percent in comparison to the tube without foam, indicating a significant increase of energy loss due to foam insertion inside the aluminum tube. Data were compared with similar experimental results from the literature and a good correlation was observed.