Manufacturing Processes

Joining, Machining, & Assembly

Briefs: Mechanical & Fluid Systems
Tethered, Remotely Operated Miniature Submarine

A tethered, remotely operated, armed underwater vehicle has been conceived to satisfy a need for an uninhabited vehicle for Navy missions in which positive identification of targets is needed....

Briefs: Mechanical & Fluid Systems
The Future of Space Propulsion

A paper presents an overview of state of the art of space propulsion, oriented toward attempting to understand recent history in order to make some predictions about future developments. As used here, "space propulsion" refers generally to what are now called "spacelift" and "spacecraft propulsion." Further, as...

Briefs: Mechanical & Fluid Systems
Miniature Wheel-Leg Mobile Robots

Mini-Whegs™ are small mobile robots, designed according to abstracted cockroach locomotion principles, that can run and can climb obstacles taller than themselves. Mini-Whegs are derived from larger mobile...

A computational- simulation study of distributions of electric current and temperature in brushes and slip rings in two model homopolar- motor/generator configurations was performed...

The Air Force Research Laboratory has promulgated the geometrical design of a miniature airplane denoted the Generic Micro Aerial Vehicle (GENMAV). This design is intended to serve as a...

Briefs: Mechanical & Fluid Systems
Establishment of a Center for Defense Robotics

A document presents an overview of the recently established Joint Center for Unmanned Ground Vehicles (JC-UGV), located at the Army's Detroit Arsenal in Warren, Michigan. The JC-UGV is intended to become the central facility for managing all phases of the life cycles of military robotic ground...

Briefs: Mechanical & Fluid Systems
Hybrid Three-Axis Vibration Reducers

Hybrid (passive/active) devices have been developed to reduce the magnitudes of possibly threedimensional vibrations coupled from vibrating equipment on platforms to bases that support the platforms....

Theoretical and computational research has yielded some advances in the art of designing active feedforward and feedback controllers to suppress thermal convection and reduce drag (by...

Anumerical-simulation study of stall and stall control in radial and axial compressor stages of gas turbine engines has been performed. This and other similar studies are needed...

Briefs: Mechanical & Fluid Systems
Thrust-Augmented Nozzles for Rocket Engines

The thrust-augmented nozzle (TAN) has been invented as a means of obtaining high performance from a rocket engine both during liftoff at sea-level atmospheric pressure and later during flight under...

A subscale thrust - augmented - nozzle (TAN) rocket engine was designed, built, and hot-fire tested to demonstrate the validity of the TAN concept. As described in more detail in...

Briefs: Mechanical & Fluid Systems
Near-Precision Soft Landing Resupply Dispenser

AFRL munitions experts teamed with engineers from Systima Technologies, Inc., under a Small Business Innovation Research (SBIR) contract to develop a Covert Resupply (COVRES) dispenser. The team...

Briefs: Mechanical & Fluid Systems
Blended Wing Body Aircraft

Scientists from Boeing Phantom Works, the National Aeronautics and Space Administration (NASA), and AFRL are testing a new aircraft with the potential to realize up to 30% better fuel efficiency because of its...

Understanding how air flows over the surfaces of an air vehicle can help AFRL designers maximize the vehicle's performance and minimize its cost. AFRL scientists recently...

AFRL demonstrated its Remotely Controlled Aerial Vehicle for Application of Pesticides (RCAVAP) at the Force Protection Equipment Demonstration (FPED) conducted at Quantico...

Briefs: Mechanical & Fluid Systems
AFRL Proves Feasibility of Plasma Actuators

AFRL is laying the groundwork for the development of revolutionary hypersonic aerospace vehicles (see Figure 1). Accordingly, AFRL engineers are examining the feasibility of replacing an air...

Briefs: Mechanical & Fluid Systems
Unmanned SkyTote Demonstrates Capabilities

AFRL scientists are working on SkyTote, a novel unmanned air vehicle (UAV) that will take off and land vertically like a helicopter (see figure) but also transition into horizontal flight like a...

Propulsion - Safety, Affordability, and Readiness (P-SAR) is a new and unique program effort intended to achieve common engine sustainment goals across the Army, Navy, and Air...

Briefs: Mechanical & Fluid Systems
Film Cooling Using Pulsed Coolant

Turbine engine designers routinely use film cooling to cool engine components in the hot-gas flowpath. Film cooling is the process of injecting coolant fluid at one or more discrete locations along a surface...

In support of the Aeronautical Systems Center's (ASC) Global Hawk Systems Group, AFRL has undertaken a program to study manufacturing tolerances for laminar flow on aircraft wings. On...

Briefs: Mechanical & Fluid Systems
AFRL Supports Desert Hawk Program

AFRL aeronautical engineers collaborated with the Electronic Systems Center's (ESC) Force Protection Program Office, Hanscom Air Force Base (AFB), Massachusetts, to conduct an in-house effort assessing the...

AFRL and Boeing engineers conducted successful flight tests of microelectromechanical systems (MEMS) inertial measurement units (IMU) on the Joint Direct Attack Munition...

Briefs: Mechanical & Fluid Systems
Fruit Flies

He refers to them as "nature's fighter jets" and has devoted his life's work and an entire lab to monitor their every move. Thus is the relationship existing between Dr. Michael Dickinson and the objects of his...

AFRL engineers, collaborating with aerospace manufacturers and other Air Force groups, recently demonstrated the first-ever airborne active flow control system when they...

Briefs: Mechanical & Fluid Systems
Total In-Flight Simulator 50th Anniversary

AFRL's Total In-Flight Simulator (TIFS), a Convair C-131 Samaritan aircraft, entered service on March 22, 1955. The C-131 aircraft had performed various transport operations for approximately a...

Dr. Gregg Abate, an AFRL exchange engineer, developed a new method for determining aeroballistic parameters from projectile flight data. Assigned to the Fraunhofer...

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