Results 11 to 20 of about 692,464 (289)

Evaluation of a Differentiation Scheme for Estimating Angular Acceleration from Angular Velocity

Proceedings, 2018
Headform impact testing is commonly used in the evaluation of helmets and head gear, head impact sensors and in sports related accident reconstruction.
Derek Nevins, Philip Petersen, Lloyd Smith   +2 more
doaj   +2 more sources

On Magnetization by Angular Acceleration [PDF]

Science, 1909
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openaire   +3 more sources

Dynamics of Two-Link Musculoskeletal Chains during Fast Movements: Endpoint Force, Axial, and Shear Joint Reaction Forces

Bioengineering, 2023
This study provides a dynamic model for a two-link musculoskeletal chain controlled by single-joint and two-joint muscles. The chain endpoint force, and the axial and shear components of the joint reaction forces, were expressed analytically as a ...
Andrea Biscarini
doaj   +1 more source

Kinematic angular analysis of cinematic biomechanics in forearm flexion: a case study [PDF]

GeoSport for Society, 2020
The research highlighted the importance of kinesiology and biomechanical analysis of movement in nowadays sports performance. Our case study followed a biomechanical structure of movement of forearm flexion and extension regarding angle, angular velocity,
Dan Alexandru SZABO, Nicolae NEAGU, Ioan Sabin SOPA   +2 more
doaj   +1 more source

The kinetic mechanisms of vertical pointing movements

Heliyon, 2019
The present study utilized induced acceleration analysis to clarify the contributions of muscular and gravitational torques to the kinematics of vertical pointing movements performed by the upper limb. The study included eight healthy men with a mean age
Shinji Yamamoto, Keisuke Fujii, Kisho Zippo, Keisuke Kushiro, Masanobu Araki   +4 more
doaj   +1 more source

Rigid Flexible Coupling Dynamics Research of the Flap Transmission Mechanism with Clearance Joints

Jixie chuandong, 2023
In order to study the dynamic characteristics of flap transmission mechanism with clearance joints, based on an improved nonlinear normal impact force model with variable stiffness, and the elastic factor of connecting rod, the angular velocity and ...
Zhang Tao, Liu Geng, Ma Shangjun
doaj  

Dynamic analysis for the release point of the golf swing (Effect of acceleration pattern of down swing)

Nihon Kikai Gakkai ronbunshu, 2015
We aim to clarify the mechanism of the release point of the golf swing and the effect of the acceleration pattern of the down swing on the dynamic behavior at the release point.
Zhiwei LI, Yoshio INOUE, Shunta KODAMA, Tao LIU, Kyoko SHIBATA   +4 more
doaj   +1 more source

A Novel Moment of Inertia Identification Strategy for Permanent Magnet Motor System Based on Integral Chain Differentiator and Kalman Filter

Energies, 2020
In a motor control system, the parameters tuning of speed and position controller depend on the value of the moment of inertia. A new moment of inertia identification scheme for permanent magnet motor system was proposed in this paper.
Chenchen Jing, Yan Yan, Shiyu Lin, Le Gao, Zhixin Wang, Tingna Shi   +5 more
doaj   +1 more source

Measurement Model and Precision Analysis of Accelerometers for Maglev Vibration Isolation Platforms

Sensors, 2015
High precision measurement of acceleration levels is required to allow active control for vibration isolation platforms. It is necessary to propose an accelerometer configuration measurement model that yields such a high measuring precision.
Qianqian Wu, Honghao Yue, Rongqiang Liu, Xiaoyou Zhang, Liang Ding, Tian Liang, Zongquan Deng   +6 more
doaj   +1 more source

Assessment of daily physical activities with sensors attached to the upper limbs in healthy adults using a manual wheelchair

Journal of Physical Fitness and Sports Medicine, 2018
This study examined the energy expenditure (EE) of healthy adults during typical use of a manual wheelchair by attaching sensors to the subjects’ upper limbs.
Ryuji Takigawa, Takayo Inayama, Kengo Yamada, Yoshihiro Muraoka, Kazunori Ohkawara   +4 more
doaj   +1 more source