Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection
Home

Additively Manufactured Modular Thrust Chamber

Thrust chambers have historically been difficult to manufacture. They require extensive tooling and labor, and are expensive with long lead times. Thrust chambers were designed for manufacture using conventional machining. As a result, designs required multiple pieces to ensure machine tool access to each surface. The individual pieces would then be joined and assembled into a single thrust chamber. These joining operations typically required process development due to the complexity of the parts and the need for joining to provide a seal between parts. A faster, more reliable and affordable manufacturing method was desired.

Posted in: Briefs, Manufacturing & Prototyping, Additive manufacturing, Productivity, Engine components, Rocket engines, Reliability

Read More >>

Resonance-Actuation of Microshutter Arrays

This innovation uses MEMS technology to selectively capture spectra of distant objects.The field of view required for future missions is much larger than for the James Webb Space Telescope (JWST). Researchers at NASA’s Goddard Space Flight Center have created a new actuation scheme to reduce mass and complexity of the microshutters used on the NIRSpec instrument. This new development implements pulsed electrostatic actuation in place of magnetic actuation.

Posted in: Briefs, Photonics, Optics, Sensors and actuators, Product development, Refractory materials

Read More >>

Wireless Electrical Device Using Open-Circuit Elements Having No Electrical Connections

This technology produces sensors for axial load force, linear displacement, rotation, strain, pressure, torque, and motion sensing.NASA Langley Research Center has developed a wireless, connection-free, open-circuit technology that can be used for developing electrical devices such as sensors that need no physical contact with the properties being measured. At the core of the technology is the SansEC (Sans Electrical Connections) circuit, which is damage-resilient and environmentally friendly to manufacture and use. The technology uses a NASA award-winning magnetic field response measurement acquisition device to provide power to the device and, in the case of a sensor application, to acquire physical property measurements from them. This fundamental new approach using open circuits enables applications such as sensors for axial load force, linear displacement, rotation, strain, pressure, torque, and motion sensing, as well as unique designs such as for a wireless keypad or wireless rotational dial, or for energy storage.

Posted in: Briefs, Electronics & Computers, Architecture, Integrated circuits, Sensors and actuators, Wireless communication systems, Electric power, Magnetic materials

Read More >>

Designing Stronger Concrete

Plasticity at small scales boosts concrete's utility as the world's most-used material by letting it constantly adjust to stress, decades or centuries after hardening. To find out why, Rice University researchers performed an atom-level computer analysis of tobermorite, a naturally occurring crystalline analog to the calcium-silicate-hydrate (C-S-H) that makes up cement, which in turn holds concrete together. By understanding the internal structure of tobermorite, they hope to make concrete stronger, tougher, and better able to deform without cracking under stress.

Posted in: Briefs, Software, Finite element analysis, Composite materials, Materials properties, Test procedures

Read More >>

Designing Materials with Reprogrammable Shape and Function

Researchers from Harvard University's John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Wyss Institute of Biologically Inspired Engineering have developed a general framework for designing reconfigurable metamaterials — materials whose function is determined by structure, not composition.

Posted in: Briefs, Software, Research and development, Materials properties, Smart materials, Biomechanics

Read More >>

Today's Automobile: Supercomputer on Wheels

With every passing year, it's getting more difficult to recognize the current crop of passenger vehicles as the descendants of Henry Ford's Model T. Those first mass-produced vehicles didn't even include a battery or starting system, relying instead on a hand-cranked engine with a magneto to provide ignition. As recently as 20 years ago, many cars were still essentially mechanical systems supplemented by hydraulic or electrical systems for handling functions like steering, ignition, lights, and audio entertainment.

Posted in: Articles, Automotive, Infotainment systems, Product development, Technical review, Autonomous vehicles

Read More >>

Designing and 3D Printing Customized Insoles for Diabetics

Insoles for diabetics have traditionally been handmade by makers of orthopedic shoes. In the future, these specialist shoemakers will be able to produce insoles more cost effectively using new software and 3D printers.

Posted in: Briefs, Software, Diseases, Prostheses and implants, Additive manufacturing, Productivity

Read More >>

White Papers

Force Sensors in Robotic Design
Sponsored by Tekscan
Antenna Basics
Sponsored by Rohde and Schwarz AD
Model-Driven Innovation in Machine Design
Sponsored by Maplesoft
Evaluating the Chemistry of Brake Pads using SEM-EDS
Sponsored by Thermo Fisher
GPGPU for Embedded Systems
Sponsored by Aitech
Risky Business: Why Excluding Suppliers from Your Quality Processes Could Cost You
Sponsored by EtQ

White Papers Sponsored By:

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.