Results 21 to 30 of about 758 (185)

Conic Section Elements Based on the Rational Absolute Nodal Coordinate Formulation

Mathematics
The construction of rational absolute nodal coordinate formulation (RANCF) elements is usually based on a linear transformation of non-uniform rational B-spline (NURBS) geometry.
Yaxiong Liu, Manyu Shi, Manlan Liu, Peng Lan   +3 more
doaj   +1 more source

A Multi-Leveled Coordinate for Multibody Mechanics

MATEC Web of Conferences, 2016
For a proper way of modelling and simulation, as well as the precise and completeness, and a new multi-level method named homogeneous tensor coordinate(HTC) was developed by improving the absolute nodal coordinate formulation(ANCF) and the homogeneous ...
Shen Fan, Rong Siyuan, Liu Jiafu, Cui Naigang   +3 more
doaj   +1 more source

Model of Assembly Deviation of Irregular Large Thin-Walled Structures Based on Higher-Order Composite Shell Element

Shanghai Jiaotong Daxue xuebao, 2022
The non-uniform stiffness distribution of irregular large thin-walled structures leads to warping deformation in the process of machining and assembly.
LIN Zhangpeng, YU Haidong, YUAN Ke
doaj   +1 more source

RESEARCH ON MECHANICAL CHARACTERISTICS OF TWO-DIMENSIONAL ABSOLUTE NODAL COORDINATE SHEAR BEAM ELEMENT BASED ON MODAL ANALYSIS (MT)

Jixie qiangdu, 2022
With the help of theoretical analysis and numerical simulation, the modal parameters of the two-dimensionally low-order beam elements and high-order beam elements based on the absolute nodal coordinate formulation were studied. The analytical solution of
ZHOU Chuan, ZHAO ChunHua, DU YaPing, GUO JiaHui, ZHANG LiQiang   +4 more
doaj  

The Study and Application of Quadrilateral Space-Time Absolute Nodal Coordinate Formulation Cable Element

Machines
The construction of a high-order shape function is a key and difficulty for unstructured grid mesh and sliding boundary problems. In this paper, a construction method of space-time absolute nodal coordinate formulation quadrilateral cable (SACQ) is ...
Dekun Chen, Jia Feng, Naidan Hou, Zhou Huang   +3 more
doaj   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Targeting the PDK1/c‐Myc/SOX10 Signaling in Oligodendrocytes Alleviates Neuropathic Pain

Advanced Science, EarlyView.
This work reveals that oligodendrocyte homeostasis, mediated by PDK1, is a critical determinant of neuropathic pain (NPP) pathogenesis. Disruption of PDK1 in oligodendrocytes impairs SOX10‐dependent myelination programs through c‐Myc accumulation, leading to disrupted myelination and the pathophysiology of NPP.
Pingping Qiao, Lifang Guo, Guochao Yang, Chaoli Huang, He Wang, Jian‐Jun Yang, Guiquan Chen, Yimin Hu   +7 more
wiley   +1 more source

Numerical Modeling and Analysis of Pendant Installation Method Dynamics Using Absolute Nodal Coordinate Formulation

Applied Sciences
Accurately simulating the deployment process of coupled systems in deep-sea environments remains a significant challenge. This study employs the Absolute Nodal Coordinate Formulation (ANCF) to dynamically model and analyze multi-body systems based on the
Yongkang Chen, Shiping He, Xinhao Luo
doaj   +1 more source

Neuron‐Derived MIF Engages VCAM1 to Fuel a Self‐Amplifying CXCL8 Loop That Drives Perineural Invasion and Metastasis in Gastric Cancer

Advanced Science, EarlyView.
Neuron‐derived MIF binds VCAM1 on gastric cancer cells and activates ERK/STAT3 signaling, leading to CXCL8 transcription and secretion. Tumor‐derived CXCL8 subsequently stimulates neuronal CXCR2 to enhance MIF production, establishing a self‐amplifying MIF–VCAM1–CXCL8 positive‐feedback loop that promotes perineural invasion, tumor progression, and ...
Xunjun Li, Zhongya Zhai, Haiyi Yu, Renjie Qiu, Fengyu Li, Luxi Xiao, Boxi Huang, Huiying Liu, Jiayong He, Bowen Cai, Jiawen Chen, Jiang Yu, Guoxin Li, Tao Chen   +13 more
wiley   +1 more source

Vibration analysis of elevator traveling cable by ANCF considering internal damping

Mechanical Engineering Journal
Traveling cables are important components for elevators that transmit electricity and control command to elevator car. In recent years, as buildings have become taller, traveling cables have also become longer.
Takayoshi KAMADA, Yuki FUKAYAMA, Kazuhiro TANAKA, Tetsu OGAWA, Tomohiro SHIKI, Taku YOSHIDA   +5 more
doaj   +1 more source