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So far Glew Engineering has created 290 blog entries.
Liquid crystal display (LCD) screens are omnipresent in our technologically saturated lives. Having largely displaced the older CRT screens, LCDs make up a large portion of the digital imaging we see all around us. They are present in everything from our ubiquitous smartphones and computer screens to digital billboards, wristwatches and vehicle and aircraft instrumentation. How do flat panel LCD screens work? One can often find videos and articles documenting eager teardowns of new devices, but few delve beyond the hardware and into the materials and design behind the screen itself. For this series of blog posts, we will be review some aspects of display technology , why they work, and how they are assembled. To illustrate my points, I’ve disassembled a legacy Sony Ericsson® S500i phone [...]
IC thermal management introduction. This relates to the heat transfer problems encountered by an electrical engineer in semiconductor design.
The entertainment industry relies on "entertainment engineers," e.g. mechanical engineers, electrical engineers, and others for standards https://www.smpte.org. Perhaps more importantly, the movie industry requires Licensed Mechanical Engineers to safely innovate and amaze. Film sets are complex physical productions, most of which are not digital special effects. The film industry utilizes Licensed Mechanical Engineers to create complex props and various special effects that move, exploded, burn, and fly. The mechanical engineers specializes in designing and making a wide range of mechanical devices that fulfill a specific purpose for the film or set they are engaged, or modify available technology to quickly achieve stupendous results. Licensed Mechanical Engineers also help in structural aspects of heaving rigging, such as lighting (See above Fig. 1 [...]
A Mechanical Engineer Designs Ways to Give Your Canine Friend a Lift Up A Mechanical Engineer designs ways to give your "Best Friend" easy access to your vehicle and different higher surfaces. Read more to find out what kind of options are available for your dog. A properly sized and installed dog ramp eases a dog's boarding dilemmas. Ramps are divided into several categories: folding, telescoping, fixed, moveable and those that are stored under the back bumper of a car. This article describes the different types of dog ramps available and the engineering required to properly design them. Fig. 1 Mechanical Engineers Design Easy Car Access for Dogs Mechanical Design, Materials Science, Weight, and Ease [...]
Licensed Mechanical Engineers Help You Ditch Suburbia Licensed Mechanical Engineers Ensure Vehicle Safety and Comfort The recreational vehicle industry (Fig. 1) is flourishing. People can use their RVs full time part, part time or travel the country for months at a time. A Licensed Mechanical Engineer (Licensed Mechanical Engineers Role in Manufacturing) makes certain that travel is safe and comfortable at the same time, without missing out on the comforts of home and your favorite kitchen. (Fig. 2) Recreational vehicles' kitchens are designed with adequate ventilation to ensure that no fires occur. Across that spectrum, the RV industry is enjoying an unprecedented growth. Who are these RVers? They love the beauty and solace of being outdoors, abiding [...]
Alexander Glew, Ph.D., P.E. established Glew Engineering Consulting 20 years ago. Since then, it has successfully served clients world-wide with mechanical engineering, electrical engineering, and materials science engineering expertise. Dr. Glew has provided testimony multiple times for Intellectual Property (IP) litigation matters, International Trade Commission (ITC) cases, and International arbitration. Fig. 1 Litigation Support Glew Engineering Expert Witness Profile Glew Engineering is located in Silicon Valley, California Alexander Glew, Ph.D., P.E. established Glew Engineering Consulting 20 years ago. Since then, it has successfully served clients world-wide with mechanical engineering, electrical engineering, and materials science engineering expertise. Dr. Glew has provided testimony multiple times for Intellectual Property (IP) litigation matters, International Trade Commission (ITC) cases, and International arbitration. [...]
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 [...]
Fig. 1 Triple HEPA Filter Licensed Mechanical Engineers Design and Model Smoke Purification Equipment Fires across the country, including Oregon, Montana, Idaho, Washington, and especially in California consume thousands of acres of forests, homes and businesses. With smoke-filled skies make air-purifiers a necessity. Smoke from a wildfire can travel hundreds of miles to infiltrate homes and offices. A licensed Mechanical Engineer ( Licensed Mechanical Engineer ) models, develops and tests smoke and particle filters (Fig. 1) to effectively remove smoke from the air in your home or workplace. We added air filters to our offices in the Silicon Valley during the height of the fires. Early Mechanical Engineers As early as the 1600s, Mechanical Engineers and physicians decided that [...]
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 [...]
Mechanical Engineering Consultants Use 3D CAD Software Comparison via Custom Motorcycle Frame: Creo vs Solidworks vs Inventor: Part 2Glew Engineering 2018-03-08T12:14:53+00:00
3D CAD Software Comparison Blog Series: Starting the Motorcycle Frame Design in Solidworks™ Welcome back to our 3D CAD software comparison blog series. Recall that in last week’s discussion, as Mechanical Engineering Consultants we introduced our plan to to model a motorcycle frame in three different 3D CAD software packages. We gave a brief history of the three CAD software packages that Glew Engineering employs: Solidworks™, Creo™, and Inventor™. In this week’s blog, as Mechanical Engineering Consultants we use Solidworks™ CAD software to model a portion of the motorcycle frame, a simple tube, while comparing three modeling techniques: Extruding Sweeping Weldment Motorcycle Frames We designed a simple bobber inspired motorcycle frame, this is conceptual, yet realistic enough to illustrate [...]
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 [...]
As energy efficient environmentally conscious engineers, we here at Glew Engineering do what we can to save energy and resources both around home and around the office. This might mean choosing products that are more environmentally friendly or energy efficient. It might mean using our surroundings to our advantage, like pulling cold air through a home or office at night so the building needs less air conditioning the next day. The most satisfying thing, though, is to employ our knowledge of mechanical engineering, materials science and thermal management to design custom hand-tooled solutions. In the next few blog posts, I'll review some of the current in-house engineering projects that are underway here and maybe give our readers a little inspiration [...]
Wind Load Comparison between CFD and ASCE 7 for Rooftop shapes Welcome back to our blog series on the phenomenon called Wind Load CFD Modeling and how it affects civil and mechanical engineers. Wind Load is the force that blowing wind exerts on any device or structure that extends above ground level. After an initial introduction to the factors that affect wind load on an object, I compared three different sets of wind load calculation methods using three simple objects, hypothetically placed on a 100-foot-tall building. Starting with generic drag equation for the first equation, added two modification coefficients called "gust factor" and "exposure coefficient" for the second equation. I used the model for rooftop objects for the [...]
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 [...]
Part 1 of our Wind Load Series “Wind load” is a calculated value representing the total force on a structure or object cause by pressure from wind moving over it. In this blog series, we will discuss different methods for wind load calculations, the factors that influence its magnitude, and the effects a high wind load can have on a structure. Wind load is most commonly addressed by civil and structural engineers when designing buildings, but mechanical engineers can encounter the effect when designing tall objects like cranes, telescoping communications masts or wind turbine towers. Wind Load Essentials As a force, wind load is the product of pressure distributed over an area (psf times ft2 or Pa times m2). In [...]
Figure 1: Unpowered Sony Ericsson S500i LCD screen at 200x magnification In our last blog post, I wrote about some of the physics and materials science principles that go into the design and manufacture of liquid-crystal display (LCD) screens. The eponymous liquid crystals (LCs) in such a display have to be quite small in order to create a seamless image; as I mentioned in the last entry, the subpixels (the red, green and blue elements comprising a pixel, visible in Figure 1) can be smaller than a red blood cell. Each of these subpixels needs its own control system that interacts with the data drivers along the periphery of the screen. These power and control circuit components [...]
Figure 1: Composite layered heater from patent US 9,224,626 B2 Alexander Glew, Ph.D., P.E. recently contributed to a new patent on an advanced thin-film electric heaters, layered composite heaters, for CVD semiconductor processing and related technologies titled “Composite substrate for layered heaters”. Watlow Electric, based in St. Louis, hired Glew Engineering and Dr. Glew to help develop this heater technology due to his experience in the Silicon Valley’s semiconductor industry. As a semiconductor equipment expert and materials engineering consultant, Dr. Glew’s familiarity with semiconductor manufacturing meant he understood both the limitations of common semiconductor chuck heating methods and the techniques that could be used to construct a better heater. In this post, we review how this composite heater capitalizes on semiconductor [...]