نتایج جستجو برای: strain measurement

تعداد نتایج: 651073  

Journal: :International Journal of Mechanical Sciences 2021

Finite Element Modelling used to predict machining outcomes needs be supplied with the appropriate material thermomechanical properties which are obtained by specific testing devices and methodologies. However, these tests usually not representative of extreme conditions achieved in processes law may suitable enough. Inverse identification could address this problem obtaining directly from such...

Journal: :ماشین های کشاورزی 0
افشین زینلی عبدالعلی فرزاد محمدحسین آق خانی

torque, speed, and power as mechanical variables are associated with the functional performance of any rotating machinery. the real-time performance and the efficiency of a machine can be determined with on-line measurement of these parameters. in this investigation a rotary torque meter (transducer) was constructed from strain gauge sensors for measuring the torque of rotating shafts. the syst...

2018
Boyang Liu Ahmed M. Dardeer William E. Moody Nicola C. Edwards Lucy E. Hudsmith Richard P. Steeds

Feature tracking of the right heart on cardiac MRI is a novel and promising technique for the measurement of right heart myocardial strain. We present here the reference ranges for right ventricular longitudinal strain and strain rate, as well as peak strain of the right atrium within a cohort of 100 healthy individuals recruited from the UK. We present data on the reproducibility of these feat...

Journal: :Optics express 2017
Dengwang Zhou Yongkang Dong Benzhang Wang Taofei Jiang Dexin Ba Pengbai Xu Hongying Zhang Zhiwei Lu Hui Li

We present a slope-assisted BOTDA system based on the vector stimulated Brillouin scattering (SBS) and frequency-agile technique (FAT) for the wide-strain-range dynamic measurement. A dimensionless coefficient K defined as the ratio of Brillouin phase-shift to gain is employed to demodulate the strain of the fiber, and it is immune to the power fluctuation of pump pulse and has a linear relatio...

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