Mechanical & Fluid Systems

Fastening

Explore the developments in fastening applications, processes, and technologies. Find technical briefs, white papers, and articles on advances in fastening.

Briefs : Mechanical & Fluid Systems
Quick Disconnect for High-Pressure Mate/De-Mate
Quick Disconnect for High-Pressure Mate/De-Mate

NASA Kennedy Space Center seeks partners interested in the commercial application of the Quick Disconnect for High Pressure Mate/De-Mate. Designed at KSC, this technology is intended for use in...

Quick Disconnect for High-Pressure Mate/De-Mate
Briefs : Manufacturing & Prototyping
Freeform Channel Close-Out for High-Performance Heat Exchangers
Freeform Channel Close-Out for High-Performance Heat Exchangers

Large-scale liquid rocket engines with regeneratively cooled nozzles will enable reliable and reduced-cost access to space. The coolant that circulates through the internal...

Freeform Channel Close-Out for High-Performance Heat Exchangers
Products : Mechanical & Fluid Systems
New on the Market: May 2018
New on the Market: May 2018

Assembly Pins

JW Winco, New Berlin, WI, offers GN 2342 RoHS-compliant stainless steel assembly pins with three washer types available that place the bolt in an axial position in its insertion direction....

New on the Market: May 2018
Articles : Mechanical & Fluid Systems
The Less is More Approach to Robotic Cable Management
The Less is More Approach to Robotic Cable Management

In recent years, cable management has come into the limelight because machine reliability has increased dramatically, even though robots have grown more complex. Unfortunately, the...

The Less is More Approach to Robotic Cable Management
Application Briefs : Materials
Using Digital Microscopes as Inspection Tools
Using Digital Microscopes as Inspection Tools

Digital microscopes are being automated and computerized to make them easier to use, display more data with more detail and precision, and expand their areas of application. With traditional...

Using Digital Microscopes as Inspection Tools
Articles : Motion Control
Industrial Rotary Encoders: Selecting the Right Device for Your Application
Industrial Rotary Encoders: Selecting the Right Device for Your Application

Rotary encoders play important roles in motion control and industrial automation systems, providing control systems with information about the motion of motor...

Industrial Rotary Encoders: Selecting the Right Device for Your Application
Briefs : Mechanical & Fluid Systems
Technique for Chemically Combining Soft Materials
Technique for Chemically Combining Soft Materials

Every complex human tool has contained multiple materials wedged, tied, screwed, glued, or soldered together. But the next generation of tools, from autonomous squishy robots to flexible...

Technique for Chemically Combining Soft Materials
Blog : Mechanical & Fluid Systems
A Role for Boston Dynamics’ Back-Flipping Robots: Is Space the Place?
A Role for Boston Dynamics’ Back-Flipping Robots: Is Space the Place?
NASA robotics engineers react to Boston Dynamics' back-flipping robots.
A Role for Boston Dynamics’ Back-Flipping Robots: Is Space the Place?
Briefs : Mechanical & Fluid Systems
Spring Plunger Locking Mechanism for Use in Hand-Actuated Tools
Spring Plunger Locking Mechanism for Use in Hand-Actuated Tools

In designing a hand-actuated microspine gripper, a ratcheting locking mechanism was required that had discrete points of locking engagement. The mechanism had to actuate...

Spring Plunger Locking Mechanism for Use in Hand-Actuated Tools
Products : Imaging
New on the Market: March 2018
New on the Market: March 2018

Product of the Month

Keysight Technologies, Santa Rosa, CA, introduced the PathWave software platform that integrates design, test, measurement, and analysis to enable product development from concept...

New on the Market: March 2018
Briefs : Mechanical & Fluid Systems
Gimbal for Steering Propelled CubeSats
Gimbal for Steering Propelled CubeSats

NASA is preparing for the next generation of CubeSats that are propelled and will make directional maneuvers. The new gimbal mount provides a seat for the motor, and controls the position of the...

Gimbal for Steering Propelled CubeSats
Briefs : Materials
Shape Memory Alloy Art (SMA-Art) Shapes
Shape Memory Alloy Art (SMA-Art) Shapes

Shape memory alloys (SMAs) have the unique ability to recover large deformations in response to thermal, mechanical, and/or magnetic stimuli. This behavior occurs by virtue of a crystallo-graphically...

Shape Memory Alloy Art (SMA-Art) Shapes
Articles : Mechanical & Fluid Systems
Products of Tomorrow: March 2018
Products of Tomorrow: March 2018

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Products of Tomorrow: March 2018
Articles : Mechanical & Fluid Systems
Comparison Between Wave Soldering and Reflow Soldering
Comparison Between Wave Soldering and Reflow Soldering

As contemporary electronics embrace light weight, increasing efficiency, and high speed, each link of the manufacturing process also conforms to this philosophy, including printed...

Comparison Between Wave Soldering and Reflow Soldering
Products : Motion Control
New Products: February 2018 Motion Design
New Products: February 2018 Motion Design

Ring Motor

ThinGap (Camarillo, CA) introduced the PM model TGO77 large-bore compact ring motor for precision and highspeed applications. The brushless, frameless motor has an outside...

New Products: February 2018 Motion Design
Articles : Mechanical & Fluid Systems
Contacts for Hi-Rel Connectors: Comparing Technologies
Contacts for Hi-Rel Connectors: Comparing Technologies

Contact design is critical to the performance of any connector — especially for devices that must function in harsh environments where extremes of temperature, shock, and vibration are...

Contacts for Hi-Rel Connectors: Comparing Technologies
Briefs : Mechanical & Fluid Systems
Low-Cost RFID Torque and Tension Sensing Tag System

This technology is a low-cost RFID-based torque and tension sensor for high-performance fasteners, such as bolts, that are used in sophisticated high-tech equipment and systems. It offers the ability to remotely and quickly verify that a given fastener is torqued properly, resulting in...

Articles : Mechanical & Fluid Systems
Novel Threading Enables New Approach to Golf Clubs

Spinoff is NASA's annual publication featuring successfully commercialized NASA technology. This commercialization has contributed to the development of products and services in the fields of health and medicine, consumer goods, transportation, public safety, computer technology, and...

News : Mechanical & Fluid Systems
Space Station Crew 3D Prints Student-Designed Tool

A college student who won a NASA design challenge recently had the tool he designed 3D-printed on the Additive Manufacturing Facility on the International Space Station. The Multipurpose Precision Maintenance Tool was printed by astronaut Jeff Williams onboard the station.

News : Mechanical & Fluid Systems
'Hourglass' Concept Improves Liquid Batteries

A flow battery can be recharged quickly by replacing its electrolyte liquid. Previous versions of liquid batteries, however, have relied on complex systems of tanks, valves, and pumps, adding to the cost and providing multiple opportunities for possible leaks and failures. A new liquid battery...

News : Mechanical & Fluid Systems
NASA Satellite Marks First Space Use of 3D-Printed Part

NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will carry an electrostatically dissipative Fused Deposition Modeling (FDM), or “strand-based,” 3D printed part made of polyetherketoneketone (PEKK), a material that has never been used in 3D manufacturing, let alone flown in...

News : Mechanical & Fluid Systems
Algorithm Analyzes Vibrations to Monitor Machinery Health

An artificial intelligence algorithm was developed that greatly increases accuracy in diagnosing the health of complex mechanical systems. Typical vibration analysis searches for anomalies in the vibration of machinery such as engines and gearboxes. These changes in vibration can signal...

News : Mechanical & Fluid Systems
New Technique Can Weld “Un-weldable” Metals

Engineers at The Ohio State University have developed a new welding technique that consumes 80 percent less energy than a common welding technique, yet creates bonds that are 50 percent stronger. The new technique could have a huge impact on the auto industry. Despite recent advances in materials...

News : Materials
Fabrication Technique Cuts Cost of Aircraft Turbine Production

Compressor disks for aircraft turbines are milled from a single piece of material. During processing, the blades begin to vibrate. Now, a novel clamping system boosts vibration absorption for the blades by more than 400 times, and cuts manufacturing costs. The new clamping system...

News : Mechanical & Fluid Systems
New Technology Could Reduce Wind Energy Costs

Engineers from the University of Sheffield have developed a novel technique to predict when bearings inside wind turbines will fail, which could make wind energy cheaper. The method uses ultrasonic waves to measure the load transmitted through a ball bearing in a wind turbine. The stress on wind...

News : Mechanical & Fluid Systems
Researchers Help NASA Eliminate Vibration in Space System Joints

Researchers at the University of Georgia are helping NASA determine if a key rocket component can withstand the rigors of the next generation of spaceflight. The bellows expansion joints serve several functions in rocket propulsion systems, perhaps most critically as connectors...

News : Test & Measurement
Vibration Table Promises Different Ways of Testing

Vibration machines are crucial to test the forces that make things fall apart in the bumpy real world, from small components to complete systems like airplanes or nuclear weapons. Large, high-frequency vibration machines that shake things in several directions simultaneously are relatively new....

News : Mechanical & Fluid Systems
Speedy Laser Mirrors Enable Better Welding

Silicon micromirrors can guide laser beams at extremely high speeds, allowing operators to dose heat input to workpieces with absolute precision. But to date, they have not been robust enough to be used for laser cutting and welding. Researchers have developed fast, durable mirrors that are capable of...

Briefs : Aerospace
ACS Anchor Guide Stud and Caddy

An alignment guide and a mounting interface for two of the repair tools on orbit during the Hubble Space Telescope Servicing Mission 4 (see http://asd.gsfc.nasa.gov/archive/hubble/missions/sm4.html) were developed. This design can be installed in a timely manner, and was specifically developed for a worksite with...

Products : Mechanical & Fluid Systems
Fasteners

The Key-Rex™ high-security fastener is available from Bryce Fastener (Phoenix, AZ). The special safeguard feature of the screw is the endless combination of complex shapes developed in the drive (head) of the screw. Each keyway shape and matching driver bit is licensed to only one client. Because the driver bit functions like a key,...