Results 131 to 140 of about 34,421 (359)

A Cartesian Compliance Controller for a Manipulator Mounted on a Flexible Structure

open access: yes, 2006
In this paper the Cartesian compliance control of a manipulator mounted on a flexible base is considered. The proposed control law aims at achieving a desired stiffness and damping in Cartesian coordinates while taking account of the base flexibility.
Albu-Schäffer, Alin Olimpiu   +5 more
core   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced 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

Investigation of the mechanical and electrical properties of actuators for active vibration isolation

open access: yes, 2010
In this report, the mechanical and electrical properties of three types of actuators are investigated. The actuators of interest are electromagnetic, magnetostrictive and piezoelectric.
Brennan, M.J., Fakkaew, W.
core  

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced 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

Semi-Passive Control Strategy using Piezoceramic Patches in Non Linear Commutation Architecture for Structural-Acoustic Smart Systems

open access: yes, 2009
The demands for novel smart damping materials can be summarized in: external power source not required for operation; device not needing to be tuned to a specific frequency; device operation not affected by changes in modal frequency; device suppressing ...
Ciminello, Monica
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Active damping for acoustic levitation in air

open access: yesAIP Advances
Acoustic levitation is an attractive and versatile technique that offers several advantages in terms of particle size, range, reconfigurability, and ease of use with respect to alternative levitating techniques.
Vincent Bos   +3 more
doaj   +1 more source

Investigation into low power active electromagnetic damping for automotive applications

open access: yes, 2015
Automobile suspension systems carry out two important functions; road handling and passenger comfort. Hydraulic passive dampers are the most common system employed on vehicles, yet it is well known that passive suspension systems are less effective on ...
Fow, Alista John
core  

Regenerative chatter reduction by active damping control

open access: yes, 2007
The objective of this paper is to demonstrate the effect of active damping on regenerative chatter instability for a turning operation. Two approaches are used for this purpose.
Preumont, André   +2 more
core   +1 more source

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