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Aerospace & Defense Technology: August 2020

Reverse Engineering the Boeing E-3 Sentry's Secondary Flight Controls Vanadium - A Green Metal Critical to Aerospace and Clean Energy Thrust in Space - The Nuances of Thruster Valve Design 3D Printing Aerodynamic Improvements Cryogenic-Capable Isolators Improve the Performance of Millimeter-Wave Systems by Lowering Noise Levels Detection with Quantum Radar A new radar prototype utilizes quantum entanglement as a method of object detection. Preliminary Development of an Integrated Mobility, Lethality, and Survivability Soldier Performance Testing Platform Developing a methodology that incorporates objective measures of performance and is sensitive to changes in soldier-system equipment could help guide equipment manufacturers during product development and acquisition. Bore Elevation and Azimuth Measurement System (Beams) Newly developed laser apparatus verifies that the pointing accuracy requirement of a weapon's fire control system is met.

Aerospace Engineering 2005-01-01

Flying safer Software is being designed to predict pending failures, warn pilots, and maybe even fly the plane. CMM + laser probe = complete inspection Sonaca gave up its manual inspection methods in favor of a digital approach to save time- and money. A rounded view of fibers The use of fibers for aerospace gyroscope applications- notably inertial navigation and platform stabilization- is common now, but it was not always so. Piston engine propulsion SAE 100 Future look: As the propulsion industry looks to the future, the barriers remain challenging, the drivers more critical, but the innovations more promising. What's downstream in turbine technology SAE 100 Future look: Gas turbine machines-aviations, industrial, and vehicular- are versatile and cost-effective machines used for the provision of electricity, mechanical load power, and propulsion.

2013 and 2014 Passenger Car Yearbook

This set consists of two books, 2013 Passenger Car Yearbook, and 2014 Passenger Car Yearbook. Both include articles that were written by the award-winning editors of Automotive Engineering International. Both books detail the key engineering developments in the passenger vehicle industry of that year. Each new car model is profiled in its own chapter with one or more articles.

Automotive Engineering International 2004-04-01

The chain in China North American suppliers must confront some challenging supply-chain issues as they take aim at what could potentially become the world's largest automotive market. Visteon researches composite truck chassis The company used computer analysis extensively in a research project aimed at reducing the mass and complexity of a chassis structure while increasing strength and stiffness. Simulation goes beyond engineering Computational fluid dynamics simulation and visualization software vendors are introducing products to extend the value of CFD throughout the product life cycle, according to Acuitiv Software. Ford still riding Six Sigma quality horse Ford is combining Six Sigma with kaizen events at its plants around the globe to coax new ideas from its hourly workers in hopes of closing the gap with perennial vehicle-quality leader Toyota.


The welding game changer Daniel Jubera of Novelis talks exclusively to Ian Adcock about its new laser weldable aluminium On the supercharge A new variable supercharger from V-Charge could herald a new era of downsized engines. Ian Adcock reports Making the MOST of in-car data Mark Fletcher takes a look at MOST and discovers how it is helping OEMs to keep pace with consumer demands

SAE Off-Highway Engineering 2005-03-01

Engine electronics come of age Changes in global standards, combined with engineering know-how, have resulted in a new generation of clean, quiet, and efficient engines. Operators are rolling in the chips Microprocessors and sensors are being combined to monitor the way that equipment is being used, then help operators to perform better in that environment. Gaining weight Perkins' influence in the off-highway industry grows as it evolves its global engine lines and expands its presence in the U.S. What's new at CONEXPO-CON/AGG, Part 2 of 2 A preview of some of the products and technologies that will be displayed at this year's event, scheduled March 15-19 in Las Vegas, NV. Engineering a career Off-highway companies are challenged not only by the ever-changing technology landscape, but also by finding the engineering talent to help them succeed in it.


This specification covers established metric (SI) manufacturing tolerances applicable to non-cellular rubber products ordered to metric dimensions. These tolerances apply to all conditions, unless otherwise noted. The term "excl" applies only to the higher figure of the specified range.

Enabling New Optical Fiber Applications in Avionics Networks

Optical fiber has begun replacing copper in avionic networks. So far, however, it has been mainly restricted to non-critical applications (video transmission to the flight deck, IFE?). In order to take advantage of the high-bandwidth, low weight, no EMI properties of optical fibers in all data transmission networks, it will be necessary to improve the testing. One part of the puzzle, which is still missing, is the self-test button: the possibility to check the network and detect potential failures before they occur. The typical testing tool of a technician involved in optical fiber cables is the ?light source ? optical power meter? pair. With this tool, one can measure the insertion loss of the fiber link. A second important parameter, the return loss at each optical connector, is not analysed. In addition, this is only a global measurement, which does not allow the detection of possible weak points.

Business Model for Successful Commercialization of Aircraft Designs

This article characterizes the special features of drilling of CFRP/Titanium and -Aluminium stacks. Simplified theoretic models will show how CFRP/Titanium stacks should be machined without scratches and burn marks contacting carbon. Low axial forces and smart chip removal technology are the main characteristics of the drilling tool technology, optimized to reach H8 quality in one shot operation. Presenter Peter Mueller-Hummel, Cutting Tools Inc.

Automating AFP Tuning Using a Laser Sensor

A significant step is achieved on the flight control actuation system toward the more electrical aircraft through the Airbus A380, A400M and the A350 development phase ongoing. The A380/A400M/A350 features a mixed flight control actuation power source distribution, associating electrically powered actuators with conventional FlyByWire hydraulic servocontrols. In the scope of the preparation of the future Airbus Aircraft, this paper presents the perspectives of the use of the EMA technologies for the flight control systems in the more electrical aircraft highlighting the main technical challenges need to treat: jamming susceptibility, ?on board? maintenance reduction, Operational reliability increase, power electronics and power management optimization, and regarding the environmental constraints, the predicted performances; the benefits associated to the optimized utilization of on-board power sources.

Polycarbonate Glazing - Accelerated Wiper Testing, Surface Characterization and Comparison with On-Road Fleet Data

Exatec� PC glazing technology team, has developed advanced weathering and abrasion resistant coatings technology that can be applied to protect polycarbonate. It is of particular interest to quantify and understand the factors that determine the surface abrasion performance of coated PC in rear window and backlight applications that have a wiper system. In the present study we describe Exatec's lab scale wiper testing equipment and test protocols. We also describe adaptation of optical imaging system to measure contrast and nano-profiling using nano-indenter, as post wiper surface characterization methods. These methods are more sensitive to fine scratches on glazing surface than standard haze measurement and mechanical profilometry. Three coating systems were investigated; Siloxane wetcoat (A), Siloxane wetcoat (B), and Siloxane wetcoat (B) plus plasma coat (Exatec� E900 coating). The performance comparisons were made using all these surface characterization methods.

Death Rays, Jet Packs, Stunts and Supercars: The Fantastic Physics of Film's Most Celebrated Secret Agent

James Bond would have died a thousand deaths if not for Q, the genius behind the pen grenades and weaponized sports cars that have helped Britain's most famous secret agent cheat death in twenty films. Here Barry Parker demonstrates how science and technology have been as important to 007 as good looks, shaken martinis, and beautiful women. Using entertaining sketches and nontechnical language, Parker explains the basic physics behind the gadgets, cars, and stunts in a number of Bond films, from the jet packs in Thunderball to the dynamics of daredevil bungee jumping in GoldenEye. If you've ever wondered whether the laser could have actually cut Bond in half (Goldfinger), if a wristwatch could really unzip a woman's dress (Live and Let Die), or whether your car could do the 360-degree barrel roll from The Man with the Golden Gun, this book is for you.

The Business of Winning

Motorsport Valley® is the dynamic motorsport industry cluster of companies whose global influence is as strong as ever. Learn more about the innovative technologies which continue to deliver world-beating success in the outstanding MIA publication - The Business of Winning. In-depth, up-to-the-minute features and case studies fill the full-colour 100-plus pages. The Business of Winning analyses the pioneering ideas, processes and capabilities that characterize Motorsport Valley® and UK high-performance engineering and features exciting images which bring the story to life. The Business of Winning, supported by UK Trade & Investment, focuses on the successful companies that comprise Motorsport Valley and highlights their presence at the forefront of the global motorsport industry. This is THE case-study source for customers, business leaders, researchers, students and fans.
Journal Article

3D Scene Reconstruction with Sparse LiDAR Data and Monocular Image in Single Frame

Abstract Real-time reconstruction of 3D environment attributed with semantic information is significant for a variety of applications, such as obstacle detection, traffic scene comprehension and autonomous navigation. The current approaches to achieve it are mainly using stereo vision, Structure from Motion (SfM) or mobile LiDAR sensors. Each of these approaches has its own limitation, stereo vision has high computational cost, SfM needs accurate calibration between a sequences of images, and the onboard LiDAR sensor can only provide sparse points without color information. This paper describes a novel method for traffic scene semantic segmentation by combining sparse LiDAR point cloud (e.g. from Velodyne scans), with monocular color image. The key novelty of the method is the semantic coupling of stereoscopic point cloud with color lattice from camera image labelled through a Convolutional Neural Network (CNN).
Journal Article

Efficient Lane Detection Using Deep Lane Feature Extraction Method

Abstract In this paper, an efficient lane detection using deep feature extraction method is proposed to achieve real-time lane detection in diverse road environment. The method contains three main stages: 1) pre-processing, 2) deep lane feature extraction and 3) lane fitting. In pre-processing stage, the inverse perspective mapping (IPM) is used to obtain a bird's eye view of the road image, and then an edge image is generated using the canny operator. In deep lane feature extraction stage, an advanced lane extraction method is proposed. Firstly, line segment detector (LSD) is applied to achieve the fast line segment detection in the IPM image. After that, a proposed adaptive lane clustering algorithm is employed to gather the adjacent line segments generated by the LSD method. Finally, a proposed local gray value maximum cascaded spatial correlation filter (GMSF) algorithm is used to extract the target lane lines among the multiple lines.
Journal Article

An Optical-Based Technique to Obtain Vibration Characteristics of Rotating Tires

Abstract The dynamic characteristics of tires are critical in the overall vibrations of vehicles because the tire-road interface is the only medium of energy transfer between the vehicle and the road surface. Obtaining the natural frequencies and mode shapes of the tire helps in improving the comfort of the passengers. The vibrational characteristics of structures are usually obtained by performing conventional impact hammer modal testing, in which the structure is excited with an impact hammer and the response of the structure under excitation is captured using accelerometers. However, this approach only provides the response of the structure at a few discrete locations, and it is challenging to use this procedure for rotating structures. Digital Image Correlation (DIC) helps in overcoming these challenges by providing the full-field response of the structure.
Journal Article

Effects of Reflux Temperature and Molarity of Acidic Solution on Chemical Functionalization of Helical Carbon Nanotubes

Abstract The use of nanomaterials and nanostructures have been revolutionizing the advancements of science and technology in various engineering and medical fields. As an example, Carbon Nanotubes (CNTs) have been extensively used for the improvement of mechanical, thermal, electrical, magnetic, and deteriorative properties of traditional composite materials for applications in high-performance structures. The exceptional materials properties of CNTs (i.e., mechanical, magnetic, thermal, and electrical) have introduced them as promising candidates for reinforcement of traditional composites. Most structural configurations of CNTs provide superior material properties; however, their geometrical shapes can deliver different features and characteristics. As one of the unique geometrical configurations, helical CNTs have a great potential for improvement of mechanical, thermal, and electrical properties of polymeric resin composites.
Journal Article

Laser-Assisted Filler-Based Joining for Battery Assembly in Aviation

Abstract A key problem of the construction of fully electric aircraft is the limited energy density of battery packs. It is generally accepted that this can only be overcome via new, denser battery chemistry together with a further increase in the efficiency of power utilization. One appealing approach for achieving the latter is using laser-assisted filler-based joining technologies, which offers unprecedented flexibility for achieving battery cell connections with the least possible electrical loss. This contribution presents our results on the effect of various experimental and process parameters on the electrical and mechanical properties of the laser-formed bond.