Animal Prosthetics are a widely varying field with many different interfaces. Licensed Mechanical Engineers add immense insight into material selections, gearing, wear, and vibration response. From disease prevention (heating, ventilation, hospital room design) to surgical tools, mechanical engineering has vastly changed the art of healing sick and injured animals. A Licensed Mechanical Engineer can develop a variety of apparatus' for the Animal Kingdom to increase mobility. Animal prosthetics are a relatively new phenomenon, and their technology is improving at a rapid pace. Animal Prosthetics are Designed by Licensed Mechanical Engineers Animal Prosthetics are a widely varying field with many different interfaces. Licensed Mechanical Engineers add immense insight into material selections, gearing, wear, and vibration response. An actuated prothetic [...]
Licensed Mechanical Engineers Design Zoo Habitats Licensed Mechanical Engineers with Innovative Ideas Licensed Mechanical Engineers design habitats for Zoo Animals (see: Licensed Mechanical Engineers) accommodating all animals large and small. Zoo care is a booming industry since the past decade. Mechanical Engineers with innovative ideas can create sanctuaries for wildlife conservation. Architects design the Facility Aesthetics of the Zoo. Engineers keep the animals and public safe, and design technical aspects of the zoo enclosures. Licensed Mechanical Engineers build habitats for animals using the most updated technical information available. Engineers ensure that the animal is content and cannot escape from its new habitat. Guests have a viewing area without encroaching the animals' personal space. Mechanical Engineers need information such as how [...]
Mechanical Engineering Consulting Firm Supports Small Restaurants Engaging a Mechanical Engineering Consulting Firm Facilitates Ventilation Exemption Approvals The Santa Clara County Department of Environmental Health, Consumer Protection Division, published a guideline “Food Facility Plan Requirements” to assist new (or remodeld) restaurant business owners meet the California Retail Food Code (CalCode). The document facilitates obtaining a California Health and Safety Certificate; it does not discuss local planning and zoning requirements, or local fire safety requirements, etc. The internet address www.ehinfo.org for further information. Section 4.P. dictates ventilation standards; most cooking equipment needs hoods and ducts. However, for smaller food preparation appliances, under certain circumstances, a ventilation hood exception can be granted. Engaging a Licensed Mechanical Engineering Consulting firm can facilitate [...]
Mechanical Engineering Consulting Firm Solves an Axle Failure Attorney Requested Mechanical Engineering Consulting and Litigation Support Glew Engineering provides mechanical engineering consulting to high technology and industry. As is often the case, an attorney asked us to provide an independent 3rd party review of the cause of repeated torsion axle failures on a semi-truck trailer that his client experienced. We obtained the failure information and photographs from the client and researched the trailer and its axle configuration. As mechanical design experts, we formulated an unbiased opinion on why the trailer’s axles failed multiple times despite being under the rated loads. For the final phase of our litigation support, we wrote and expert report documenting our findings. Litigation Support [...]
Fig. 1 A street bike shown in CAD mesh. Mechanical Engineering Consulting Group Evaluates 3D CAD Programs Mechanical Engineering Consulting Testing of Creo™, Solidworks™, and Inventor™ Mechanical Engineering Consulting service companies largely use one of three 3D CAD programs: Creo™, Solidworks™, and Inventor™. At Glew Engineering, we have licensed seats of all three CAD mechanical design packages. We reviewed the CAD workflow and feature sets of each 3D CAD program using motorcycle frame design as an example. Also, we showed that some of the specialized commands of each 3D CAD software programs are better suited for specific tasks. Our engineers are experienced with 3D CAD, stress analysis by Finite Element Analysis (FEA), as well as Computational Fluid Dynamics (CFD) FEA [...]
Wind Load Calculation Wind Load Calculation is an overview of the force that blowing wind exerts on a tall object. A number of factors that influence the actual wind load on a real building, include the surrounding terrain, nearby structures, trees, and typical weather patterns for the area. Comparing wind load calculations are most complicated . Calculations try to account for as many of these external factors as possible, to the point where the wind load section in American Society for Civil Engineer’s ASCE 7 standard, spans five chapters and over 100 pages. Fig 1: Wind load calculation example structures ASCE 7's Applications Comparing one of ASCE 7’s Applications with the two equations [...]
Conduction and Radiation of Thermal Energy In my last blog post, I wrote about the conduction and radiation of thermal energy through windows and the thermal transmittance value, called the U-Factor, that characterizes that heat transfer. The U-factor is useful in evaluating window performance and making wise decisions when specifying components for a building, but it is only one piece of the puzzle. The National Fenestration Research Council (NFRC) mandates a second value alongside U-factor in its certification process, called the Solar Heat Gain Coefficient (SHGC). SHGC represents the ability of a window to resist heat gain from radiation, like the sunlight in Figure 1. This is obviously a challenge, given that the entire point [...]
Italian Masters: Leonardo da Vinci – Artist, Engineer, Scientist GalleryElectrical Engineering, Engineering Consulting, Expert Witness, Finite Element Analysis, Licensed Mechanical Engineer, Mechanical Engineering, Mechanical Engineering Consulting
Figure 1: Leonardo da Vinci, by Francesco Melzi Over the course of this blog series, I have written about a number of Italian Masters of science and engineering, from astronomers like Galileo and Cassini to physicists like Torricelli and Venturi. I’ve saved the best for last, however: Leonardo da Vinci. He is the quintessential renaissance man who fits both our running definition of “Italian Master” as well as being included in the standard list of Masters with Rafael, Donatello and Michelangelo Leonardo’s incredibly broad array of talents and interests have long been the subjects of movies, books, TV shows, and, of late, video games. Throughout his life, he had one hand in the arts, ranging from painting, sculpting, music, history, and literature, [...]
Italian Masters: Volta Jump-Starts Electrical EngineeringFigure 1: Girolamo Cardano (1501-1576) Welcome back to our series on Italian Masters of math and science. Last week I wrote about Galileo’s extensive accomplishments both in the field of astronomy and beyond. This week, I’ll take a look at another renaissance polymath who dabbled in astronomy, along with his work in mathematics, medicine, biology, chemistry, philosophy, and gambling (yes, seriously): Girolamo Cardano. Cardano is a less well-known figure than Galileo or some of the other scientists I’ve written about who have famous equations or units of measurement named after them, like Volta or Torricelli. He is regarded as one of the greatest mathematicians of his age, however, and made a great many contributions to science, [...]
Portrait of Galileo Galilei Justus Sustermans [Public domain], via Wikimedia Commons I’d like to return to our previous series on the Italian Masters, focused not on the usual masters or painting and sculpture but on the masters or science, mathematics, and engineering. So far in the series I’ve written about the accomplishments of Volta, Cassini, Venturi and Torricelli. Today, I’d like to look at one of the greats: Galileo Galilei. Galileo is most famous today for standing up for heliocentrism against the Catholic Church and spending the last years of his life under house arrest as punishment. However, Galileo didn’t let controversies or confinement stop him, and accomplished a great amount of research in not only [...]
12 Years a Martian: Engineering Challenges on the Red Planet GalleryCAD, Electrical Engineering, Engineering Consulting, Expert Witness, Licensed Mechanical Engineer, Materials Science, Mechanical Engineering, Mechanical Engineering Consulting, Solar Car, Solar Cars, Solar Vehicle, Thermal Management
Figure 1: Mars Exploration Rover By NASA/JPL/Cornell University, Maas Digital LLC [Public domain], via Wikimedia Commons Depending on which Facebook pages or Twitter feeds you follow, some of you may have caught wind that Opportunity (Mars Exploration Rover B, Figure 1) recently passed its twelfth anniversary of its landing on the red planet. Opportunity’s ongoing trek across Mars represents a fantastic accomplishment in engineering. At the time I’m writing this, the rover has been in continual operation for over 4,300 Earth days (that’s about 4,185 Sols, or Martian days). Considering its original planned mission time of 92 Earth days, Opportunity has exceeded its design lifetime by 4,700%. Imagine having a car that, instead of a [...]
We'll continue on now with our blog series on finite element analysis (FEA). After discussing how to best set up a computer-aided design (CAD) model for FEA simulation, in this blog I'll cover the next step: meshing the model and applying boundary conditions. "Meshing" is the process by which the CAD model is separated into discrete finite elements; it can be done in the same program that runs the FEA numerical simulation later, or it might be performed in a standalone program, depending on your software. Boundary conditions are the loads (forces, movements, impacts, etc) and constraints that interact to actually cause deformation and stress in each element, and in turn the model as a whole. Mesh Generation The mesh essentially [...]
Figure 1: Giovanni Battista Venturi [i] Glew's News is doing a short series highlighting the lives and accomplishments of the Italian Masters of science, engineering, and mathematics. In the last blog, I wrote about Evangelista Torricelli, a mathematician and physicist from the 17th century. In this blog, I'm focusing on Giovanni Venturi (Figure 1), an accomplished physicist, hydrodynamicist and engineer. Giovanni Battista Venturi (1746-1822) Giovanni Venturi was born to a wealthy family in Reggio, Italy in 1746. A talented young student, by the age of 23 the local seminary had already ordained him as a priest and professor. His talents in mathematics didn’t long escape notice at the nearby University of Modena, which appointed him as a professor of geometry and [...]
Figure 1: Reinforced concrete mesh © Glew Engineering Consulting Welcome back to our blog series on FEA. In the last blog entry, we introduced some of the fundamental concepts in finite element analysis (FEA). This entry in the blog series focuses on the initial steps in preparing a computer-aided design (CAD) model ready for use in an FEA program. Since FEA programs are very sensitive to the data they have to work with, it's important that the CAD models being analyzed are compatible with the analysis methods the FEA program uses. In order to illustrate my points throughout the blog series, I will introduce a recent FEA consulting project that we completed. Modeling Punching Shear in a Concrete Slab We were recently approached by an academic, who was examining [...]
Figure 1: FEA mesh and shear stress results for a reinforced concrete slab © Glew Engineering Consulting, 2016 Finite Element Analysis Consulting (FEA) In this series of blogs on FEA, we will first cover some basic elements common to many FEA projects, and then in subsequent blogs in this series, illustrate those methods through examples. One of the services that Glew Engineering Consulting provides is finite element analysis consulting (FEA). FEA consulting has been a great boon to the engineering profession, allowing mechanical engineers and civil engineers to accurately model the stress and strain behavior of complicated parts and assemblies prior to building physical prototypes. FEA programs are capable of predicting the effects of loads and impacts, variations in temperature, changes in pressure, and [...]
An article on pressure transducers used in semiconductor fabs and semiconductor equipment.
Mechanical engineering design for high-purity processes in semiconductor fabs: process pumps, abatement and exhaust lines.
Introduction to our blog series on the complexities of mechanical engineering design for high-purity gas panels in semiconductor fabrication.