Keyword: Springs

Briefs: Motion Control
Applications include valves, tubes, and other gas and fluid system components.
Technology Leaders: Test & Measurement
Learn about the latest measurement technology designed to ensure accurate testing of helical compression and extension springs.
Briefs: Manufacturing & Prototyping

In order to qualify miniature springs, manufacturers of these systems rely on commercially available testers that are designed for large-scale springs (>0.5" diameter). Commercially available spring...

Briefs: Mechanical & Fluid Systems

In discussing fatigue life, it is important to distinguish between disc springs and conical spring washers, as they differ by design and intended usage. Conical spring washers are...

Briefs: Mechanical & Fluid Systems

Typical butterfly valves cannot seal at both ambient and cryogenic temperatures. At cryogenic temperatures, valves grow and shrink, changing critical dimensions such as distance between the disc and seat....

Articles: Mechanical & Fluid Systems

When choosing a gas spring for a particular application, it’s imperative to have a basic understanding of the workings and terminology used when specifying gas springs. This article offers...

Briefs: Test & Measurement

Check valves are traditionally designed as a simple poppet/spring system where the spring is designed to equal the force created from the sealing area of the valve seat multiplied by...

Briefs: Mechanical & Fluid Systems

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...

Briefs: Manufacturing & Prototyping

CAD models have been developed that enable objects to be 3D-printed out of commercially available plastics; these objects can wirelessly communicate with other smart devices, including a...

Briefs: Medical
LightCensor Software for Optimized Viewing of Medical Images

Because of improved display quality, the smartphone has been advocated by medical imaging vendors for viewing medical images in specific conditions that require urgency of results, or when full-sized workstation displays are not readily available. As a handheld device, the viewing...

Briefs: Mechanical & Fluid Systems

NASA’s Marshall Space Flight Center scientists have invented a novel valve actuator where the primary actuating system and return spring system are arranged non-collinearly. In the past, valve actuators...

Application Briefs: Manufacturing & Prototyping
Proto Labs
Maple Plain, MN
www.protolabs.com

As products get smaller, their components need to follow suit, and springs are no exception. In a variety of...

Articles: Mechanical & Fluid Systems

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...

Briefs: Mechanical & Fluid Systems

Tuned mass dampers are used worldwide to mitigate vibrations in structures like buildings and bridges where excessive movement can be alarming or even sickening to occupants. The...

Application Briefs: Motion Control

A manufacturer of low and high-rise elevators faced a challenge when customers began calling for a flexible elevator to meet the needs of the growing mid-rise, mixed-use building...

Briefs: Robotics, Automation & Control

Roboticists at the University of California, Berkeley, have designed a small robot that can leap into the air and then spring off a wall, or perform multiple vertical jumps in a row, resulting in...

Briefs: Mechanical & Fluid Systems
Mechanisms for Achieving Non-Sinusoidal Waveforms on Stirling Engines

The current state-of-the-art Stirling engines use sinusoidal piston and displacer motion to drive the thermodynamic cycle and produce power. Research performed at NASA Glenn has shown that non-sinusoidal waveforms have the potential to increase Stirling engine power density,...

Briefs: Manufacturing & Prototyping

NASA’s Langley Research Center has developed a portable device to simulate low-velocity impacts on a material or structure. As composite materials are highly susceptible to damage caused by low-velocity impact, they...

Briefs: Mechanical & Fluid Systems
A magnetically retained pressure-relief valve enables quick-open on/off operation when overpressure is reached.

Inventors at NASA’s Kennedy Space Center have developed a magnetically retained, fast-response...

Briefs: Materials

NASA’s Langley Research Center has developed composite elastic skins for covering shape-changing (morphable) structures. These skins are intended especially for use on advanced aircraft that change shapes in...

Articles: Motion Control

Power-off brakes are designed to hold or stop motion in the absence of power. Adding an electrical current releases the brake, freeing the load for motion. Given the safety...

Application Briefs: Robotics, Automation & Control

Shock absorbers are important parts of vehicles. The shock absorber is used to observe the vibrations from shock loads due to irregularities of the road surface, and operates without affecting the...

Briefs: Robotics, Automation & Control

NASA Marshall Space Flight Center’s Fluid Structure Coupling (FSC) technology is a highly efficient and passive method to control the way fluids and structures communicate and dictate the behavior of a system. This...

Briefs: Robotics, Automation & Control

NASA’s Kennedy Space Center has developed a novel ruggedized housing for an electrical or fluid umbilical connector that prevents intrusion of dust, sand, dirt, mud, and moisture during field use under harsh...

Briefs: Mechanical & Fluid Systems

As CubeSats take on increased functionality, including larger solar arrays for increased power demands and large antennas for science and communications needs, the requirements for...

Briefs: Mechanical & Fluid Systems
Lightweight, Reusable Payload Launch and Transportation Latch

This innovation addresses the problem of automatic engagement and disengagement of payloads from their transport vehicle when lifted by a crane or other material handling device. The prior state-of-the-art is in material handling devices that require personnel to activate the latch,...

Briefs: Mechanical & Fluid Systems

A hermetically sealed, normally closed (NC) zero-leak valve has been developed. Prior to actuation, the valve isolates the working fluid in the upstream volume from the...

Briefs: Mechanical & Fluid Systems

During any winding or unwinding action, a tether may experience unexpected changes in tension. For example, the load being wound could become stuck and stop...

Briefs: Mechanical & Fluid Systems
Wallops Flight Facility 6U Advanced CubeSat Ejector (ACE)

Six-unit (6U) CubeSats are recognized as the next nanosatellite to be considered for standardization. The CubeSat standard established by California Polytechnic University (Cal Poly), which applies to 1U–3U sizes, has proven to be a valuable asset to the community. It has both provided...