Results 81 to 90 of about 5,465 (262)

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

Advanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi, Amirreza Davar, Dongyi Wang   +2 more
wiley   +1 more source

Bayesian finite element model updating based on Markov chain population competition

Jixie qiangdu
The traditional Markov chain Monte Carlo(MCMC） simulation method is inefficient and difficult to converge in high dimensional problems and complicated posterior probability density.In order to overcome these shortcomings, a Bayesian finite element model ...
YE Ling, JIANG Hongkang, ZOU Yuqing, CHEN Huapeng, WANG Licheng   +4 more
doaj   +2 more sources

Clustering of Parameter Sensitivities: Examples from a Helicopter Airframe Model Updating Exercise

Shock and Vibration, 2009
The need for high fidelity models in the aerospace industry has become ever more important as increasingly stringent requirements on noise and vibration levels, reliability, maintenance costs etc. come into effect.
H. Shahverdi, C. Mares, W. Wang, J.E. Mottershead   +3 more
doaj   +1 more source

Finite Element Model Updating of RC Bridge Structure with Static Load Testing: A Case Study of Vietnamese ThiThac Bridge in Coastal and Marine Environment. [PDF]

Sensors (Basel), 2022
Nguyen DC, Salamak M, Katunin A, Gerges M.   +3 more
europepmc   +1 more source

ChicGrasp: Imitation‐Learning‐Based Customized Dual‐Jaw Gripper Control for Manipulation of Delicate, Irregular Bio‐Products

Advanced Robotics Research, EarlyView.
Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar, Zhengtong Xu, Siavash Mahmoudi, Pouya Sohrabipour, Chaitanya Pallerla, Yu She, Wan Shou, Philip Glen Crandall, Dongyi Wang   +8 more
wiley   +1 more source

Parameter Identification of Composite Materials Based on Spectral Model by Using Model Updating Method

International Journal of Polymer Science, 2018
A model updating approach based on a spectral element model and solved with a particle swarm optimization (PSO) method is proposed to identify the vibration-damping properties of composite materials.
Rui Sun, Ricardo Perera, Enrique Sevillano, Jintao Gu   +3 more
doaj   +1 more source

Real-Time Structural Health Monitoring and Damage Identification Using Frequency Response Functions along with Finite Element Model Updating Technique. [PDF]

Sensors (Basel), 2022
Singh T, Sehgal S, Prakash C, Dixit S.
europepmc   +1 more source

Finite Element Modelling and Model Updating of Riveted Joint Structure

Journal of Physics: Conference Series, 2019
Abstract Nowadays, the applications of rivet joints are dramatically increasing because of its capability and efficiency to assemble the engineering structure such as aerospace and mechanical structures. However, every joint such as riveted joint has a significant effect to the overall dynamic behaviour of the assembled structure.
M A S Aziz Shah, M A Yunus, M N Abdul Rani, M. A. Zulkofli   +3 more
openaire   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Correlation of numerical and experimental analysis for dynamic behaviour of a body-in-white (BIW) structure

MATEC Web of Conferences, 2017
In order to determine the reliability of data gathered using computational version of finite element analysis, experimental data is often used for validation.
Abdullah N.A.Z., Sani M.S.M., Rahman M.M., Zaman I.   +3 more
doaj   +1 more source