Special Coverage

Home

New Materials Enable Flapping Robotic Wings

Dielectric elastomers, popular materials in robotic hands, soft robots, tunable lenses, and pneumatic valves, may now be used to create flapping robotic wings.Researchers from the Harbin Institute of Technology in Weihai, China and the University of California, Los Angeles (UCLA), have discovered a new resonance phenomenon in a dielectric elastomer rotary joint. By applying alternating voltages to the electro-active polymer, the joint continuously bends at different angles. When the rotational inertia of the joint or the applied voltage is large enough, the joint deforms beyond 90 degrees to 180 degrees.The new phenomenon makes the dielectric elastomer joint a good candidate for creating a soft and lightweight flapping wing for robotic birds. The development would be more efficient than bird wings based on electrical motors due to the higher energy conversion efficiency (60 to 90 percent) of the dielectric elastomer. Made by sandwiching a soft insulating elastomer film between two compliant electrodes, dielectric elastomers can be squeezed and expanded in a plane when a voltage is applied between electrodes. In contrast to actuators based on rigid materials such as silicon, dielectric elastomers reach a very large extent of stretch, enabling new possibilities in many fields, including soft robotics, tunable optics, and cell manipulation. SourceAlso: Read Aeronautics tech briefs.

Posted in: News

Read More >>

Optimizing Heavy Equipment for Handling Bulk Materials with Adams-EDEM Co-simulation

This Webinar examines the challenges of designing bulk material handling equipment and demonstrates how co-simulation benefits engineers. By co-simulating environments, this enables engineers to realistically model the motion of equipment as it interacts with a bulk material and examine how material loads are transferred throughout their mechanical system. Designs can be virtually tested for a wide range of materials types and equipment maneuvers.

Posted in: On-Demand Webinars

Read More >>

Sphere Versus 45°/0° Versus Multi-angle: A Discussion Of Industrial Use Cases

With over 150 years of combined experience, the leader in the color management business, X-Rite Pantone will help you define, specify, measure and manage accurate color across the entire color supply chain. Right the first time, right every time.

Posted in: White Papers

Read More >>

Autonomous Robots Keep Warehouse Running Green

YLOG, a startup company in Austria, uses an intelligent and very environmentally friendly logistics system that is winning an increasing number of customers. The technology makes use of individual, freely moving Autonomous Intelligent Vehicles (AiVs) that detect each other, observe right-of-way rules, recognize one-way routes, and complete their tasks fully autonomously without intervention from or coordination by a central computer.

Posted in: Application Briefs, Articles, Motors & Drives, Machinery & Automation, Robotics

Read More >>

Advanced Methodology for Precisely Simulating RTD Sensor Types

This technology has applications in plant process simulation, hardware-in-the loop testing of electronic control units in automobiles and avionics, and spacecraft and satellite systems testing. VTI Instruments Corporation, Irvine, California Resistance thermometers, also called resistance temperature detectors (RTDs), are very common sensors used for temperature measurement. Their reliability, ruggedness, wide range, and value make them popular in the process industry and research laboratories alike. A wide range of instruments, PLC I/O systems, data acquisition, and control systems are designed to interface with these sensors and perform actions based on their measured value. Testing of such systems requires a sensor to be simulated, where hardware-in-the-loop testing is mandatory. Often the validation of such systems will end up being a complex issue if not properly planned.

Posted in: Briefs, Sensors

Read More >>

Microwave Radar Sensor Module

Applications include detection of humans from a distance for search and rescue, and non-contact detection of a patient’s vital signs. NASA’s Jet Propulsion Laboratory, Pasadena, California Existing implementations of continuous wave (CW) radar are not packaged appropriately for use as part of a heartbeat detection system for disaster search and rescue. They use separately packaged microwave components and laboratory test equipment, and require substantial skill to operate properly, including setup, calibration, and interpretation of the data.

Posted in: Briefs, TSP, Sensors

Read More >>

Microphones and Accelerometer Sensors Network for Acoustic Diagnostics (MASNAD)

This network of sensors can pinpoint sounds in any mobile platform. NASA’s Jet Propulsion Laboratory, Pasadena, California A system has been developed using sound to detect problems on rovers or other remote platforms autonomously. It consists of a sensor array of microphones and accelerometers that uses the differences in the sounds generated by the motors, gears, instruments, or other devices being monitored to determine abnormal operation conditions.

Posted in: Briefs, TSP, Detectors, Sensors

Read More >>