Results 61 to 70 of about 1,882,013 (251)
Kinematic Analysis of Parallel Mechanism Without Parasitic Motion
Nanjing Hangkong Hangtian Daxue XuebaoFor a type of prismatic-joint revolute-joint universal-joint-2 prismatic-joint revolute-joint universal-joint pc-joint（PRU‑2PRUPc） parallel mechanism without parasitic motion， the kinematics analysis is performed.
YE Fan, WANG Kai, LYU Xianhai, CAO Yi
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Discrete mechanics and optimal control for constrained systems [PDF]
, 2008 The equations of motion of a controlled mechanical system subject to holonomic constraints may be formulated in terms of the states and controls by applying a constrained version of the Lagrange-d’Alembert principle.
Antmann +34 more
core +1 more source
Advanced Intelligent Systems, EarlyView.A surrogate‐model‐based framework is proposed for combining high‐fidelity finite element method and efficient physics simulations to enable fast, accurate soft robot simulation for reinforcement learning, validated through sim‐to‐real experiments. Soft robotics holds immense promise for applications requiring adaptability and compliant interactions ...
Taehwa Hong +3 more
wiley +1 more source
Non-singular assembly mode changing trajectories in the workspace for the 3-RPS parallel robot [PDF]
, 2014 Having non-singular assembly modes changing trajectories for the 3-RPS parallel robot is a well-known feature. The only known solution for defining such trajectory is to encircle a cusp point in the joint space.
Chablat, Damien +3 more
core +4 more sources
Closed linkages with six revolute joints
, 2016 In this dissertation, we explore spatial overconstrained closed linkages with six revolute joints and a single-degree-of-freedom (6R linkages). The first 6R linkage was invented by Pierre Frédéric Sarrus in 1853. In the literature, a lot of 6R linkages were found by numerous methods. New 6R linkages are still being found by new methods, too.
openaire +2 more sources
Topology Optimization for a Rigid‐Compliant Hybrid Constant Force Gripper
Advanced Intelligent Systems, EarlyView.Constant‐force grippers deliver near‐constant output without sensors, cutting cost and complexity. This study proposes a topology‐optimization framework jointly designing rigid links and material distribution, modeled via link‐state and element‐density variables with constant force as the objective.
Shuhao Xia +5 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley +1 more source
Kineto-static Analysis of Planetary Gear Train based on Vector Bond Graph Method
Jixie chuandong, 2016 For the problem of kineto- static analysis for planetary gear train,the corresponding vector bond graph procedure is proposed. Based on the kinematic constraint condition of planar compound revolute joint,the procedure for modeling planar compound ...
Wang Zhongshuang, Jing Weike
doaj
A review of friction models in interacting joints for durability design
Friction, 2017 This paper presents a comprehensive review of friction modelling to provide an understanding of design for durability within interacting systems. Friction is a complex phenomenon and occurs at the interface of two components in relative motion.
Zulfiqar A. Khan +2 more
doaj +1 more source