Results 71 to 80 of about 11,763 (288)
Research of Mechanical Resonance Analysis and Suppression Control Method of the Servo Drive System
Shock and Vibration, 2021 Transmission mechanisms of the servo drive system are not a pure rigid body, and the existence of the elastic transmission mechanisms will make the system generate mechanical resonance.
Wenli Li +3 more
doaj +1 more source
Why Effective Medium Theory Fails in Granular Materials
, 1999 Experimentally it is known that the bulk modulus, K, and shear modulus, \mu, of a granular assembly of elastic spheres increase with pressure, p, faster than the p^1/3 law predicted by effective medium theory (EMT) based on Hertz-Mindlin contact forces ...
A. V. Tkachenko +21 more
core +1 more source
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
Optimum design and analysis of flexure-based mechanism for non-circular diamond turning operation
Advances in Mechanical Engineering, 2017 The flexure-based fast tool servo, which is well adopted to manufacture non-circular section parts, has attracted many researchers’ attention for its cutting-edge characteristics in non-circular turning operation in terms of large output displacement ...
Bingxiao Ding +3 more
doaj +1 more source
Television noise reduction device [PDF]
, 1975 A noise reduction system that divides the color video signal into its luminance and chrominance components is reported. The luminance component of a given frame is summed with the luminance component of at least one preceding frame which was stored on a ...
Gordon, B. L., Stamps, J. C.
core +1 more source
Proportional-integral-plus (PIP) control of the ALSTOM gasifier problem [PDF]
, 2002 Although it is able to exploit the full power of optimal state variable feedback within a non-minimum state-space (NMSS) setting, the proportional-integral-plus (PIP) controller is simple to implement and provides a logical extension of conventional ...
Chotai, Arun +3 more
core +1 more source
Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Sensors, 2010 This study aims to develop a X-Y dual-axial intelligent servo pneumatic-piezoelectric hybrid actuator for position control with high response, large stroke (250 mm, 200 mm) and nanometer accuracy (20 nm).
Mao-Hsiung Chiang
doaj +1 more source
Remote pivot decoupler pylon: Wing/store flutter suppressor [PDF]
, 1986 A device for suspending a store from an aerodynamic support surface, such an an aircraft wing, and more specifically, for improving upon singlet pivot decoupler pylons by reducing both frequency of active store, alignment, and alignment system space and ...
Hassler, J. M., Jr.
core +1 more source