Mechanical & Fluid Systems

Articles : Materials
Trends in Hydraulic Filtration

Proper filtration plays an important role in ensuring that hydraulic systems operate trouble-free. High-performance filters maintain the cleanliness of the hydraulic fluid over its entire service life. In...

Briefs : Mechanical & Fluid Systems
Modular Fixturing for Assembly and Welding Applications

Researchers at NASA’s Marshall Space Flight Center have developed new modular fixtures for holding metal in place during the assembly and welding of cylindrical and conical sections...

Briefs : Mechanical & Fluid Systems
Low-Cost, Long-Lasting Valve Seal

This technology is designed to protect against leaks in solenoid, check, manual, and relief valves, as well as disconnects and regulators.

NASA’s Marshall Space Flight Center has developed a new,...

Briefs : Mechanical & Fluid Systems
Non-Collinear Valve Actuation System

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...

Briefs : Mechanical & Fluid Systems
Novel Vent Design Features Variable Flow Control and Rain Protection

NASA’s Marshall Space Flight Center scientists have designed a vent that can be useful for purging closed compartments, while preventing backflow and foreign object entry. The technology uses a system of configurable devices to provide variable flow control and prevent water,...

Briefs : Mechanical & Fluid Systems
Novel Design of an Orifice Control Element

An orifice element is commonly used in liquid rocket engine test facilities either as a flow metering device, a damper for acoustic resonance, or to provide a large reduction in pressure over a very...

Briefs : Mechanical & Fluid Systems
Electrochemically Enhanced Mechanical Polishing of Optics

NASA’s Marshall Space Flight Center astrophysicists are developing better instruments to measure high-energy X-rays zipping about space when viewed from above the Earth’s atmosphere. Scientists at MSFC adapted a novel method for material removal and super-polishing to the mandrel...

Briefs : Mechanical & Fluid Systems
Lower-Chatter Friction Pull Plug Welding (FPPW)

Friction Pull Plug Welding (FPPW) is the process necessary to plug the hole that is left behind as a friction stir weld (FSW) joint is completed and the pin tool of the welder retracts from the...

White Papers : Robotics, Automation & Control
Short Review of Basic, General-purpose Adjustment Mechanisms for Alignment and Leveling

A web search for words “leveling” and/or “alignment” usually brings the searcher to materials discussing methods of verification of alignment or leveling with various types of tools starting with simple, but very precise mechanical indicators, and...

On-Demand Webinars : Automotive
Selecting the Right Tapered Roller Bearing for Your Application

Tapered roller bearings are widely used throughout the North American market as an economical solution for friction management in machine design. While there are many standard catalog bearings available in the marketplace, demanding applications often require engineered solutions in...

Articles : Mechanical & Fluid Systems
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...

Articles : Mechanical & Fluid Systems
Products of Tomorrow: November 2017

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...

Articles : Mechanical & Fluid Systems
2017 Create the Future Design Contest: Sustainable Technologies Category Winner

Energy Saving Filter for Removal of Heavy Metals from Water

Volodymyr Khranovskyy, R. Yakimova, Ivan Shtepliuk, P. Lima de Carvalho, and A. Pinto
Talent Molecule LDA
Braga, Portugal

Pollution by heavy metals (HMs) is a crucial...

INSIDER : Mechanical & Fluid Systems
Soft Robotic Gripper Manipulates Objects Without Training

An engineering team at the University of California San Diego has designed and built a gripper that can pick up and manipulate objects without needing to see them and without being...

Briefs : Mechanical & Fluid Systems
Plasma-Assisted Catalytic Reverse Water Gas Shift Reactor

For improving CO2 conversions for a low-temperature CO2 methanation process, a mechanism of using reverse water gas shift (RWGS) reaction as an intermediate step to generate the more reactive CO species for the methanation process was developed. The challenge was to...

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