Results 301 to 310 of about 3,274,537 (356)

Research on cutting mechanism and process optimization method of gear skiving. [PDF]

Sci Rep
Wang P, Ni Y, Wu X, Ji J, Li G, Wu J.
europepmc   +1 more source

Free-ranging squirrels perform stable, above-branch landings by balancing using leg force and nonprehensile foot torque.

J Exp Biol
Lee SD, Wang S, Kuang D, Wang EK, Yim JK, Hunt NH, Fearing RS, Stuart HS, Full RJ.   +8 more
europepmc   +1 more source

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Instantaneous Angular Speed-Based Fault Diagnosis of Multicylinder Marine Diesel Engine Using Intrinsic Multiscale Dispersion Entropy

IEEE Sensors Journal, 2023
Due to coupling of multiple cylinders during operation and association of high environmental noise, the existing waveform analysis is inefficient to identify the working status of large multicylinder marine diesel engines (MCMDEs). To solve this problem,
Yongbo Li, Ziwen Guo, Zhixiong Li, Zichen Deng, Khandaker Noman   +4 more
semanticscholar   +1 more source

Instantaneous-Angular-Speed-Based Synchronous Averaging Tool for Bearing Outer Race Fault Diagnosis

IEEE transactions on industrial electronics (1982. Print), 2023
Synchronous averaging (SA) is a powerful signal processing tool to enhance the feature of interesting periodic events by suppressing nonsynchronous components.
Xin Chen, Yu Guo, Jing Na
semanticscholar   +1 more source

High-Precision Angular Speed Tracking Control of Gimbal System With Harmonic Reducer

IEEE transactions on industrial electronics (1982. Print), 2022
In this article, a composite controller based on an extended state observer (ESO) and sliding-mode control (SMC) is presented in order to deal with the angular speed fluctuation caused by the kinematic error of a harmonic reducer in the gimbal system of ...
Haitao Li, S. Yang, Lingwen Kong, Tong Wen   +3 more
semanticscholar   +1 more source

Fundamental Issue for Wind Power Systems Operating at Variable Wind Speeds: the Dependence of the Optimal Angular Speed on the Wind Speed

EPE, 2022
This work addresses a fundamental issue that arises at maximal wind energy capture: understanding the relationship between the optimal speed and wind speed.
C. Șorândaru, Mihaela-Codruta Ancuti, S. Musuroi, M. Svoboda, Valentin Muller, Mihai Geza Erdodi, E. Edu   +6 more
semanticscholar   +1 more source

An Improved Viterbi Algorithm for Adaptive Instantaneous Angular Speed Estimation and Its Application Into the Machine Fault Diagnosis

IEEE Transactions on Instrumentation and Measurement, 2021
It is a very challenging task to diagnose the fault of rotating machinery under variable speed condition. The traditional tacholess order tracking (TLOT) method still has the problems of high computation complexity and low adaptability.
Haiyang Shi, Yi Qin, Yi Wang, Houyi Bai, Xian Zhou   +4 more
semanticscholar   +1 more source

Rolling Bearing Fault Detection of Civil Aircraft Engine Based on Adaptive Estimation of Instantaneous Angular Speed

IEEE Transactions on Industrial Informatics, 2020
Diagnosis of a civil aircraft engine, which is operating under speed variation conditions, is a representative problem encountered in aeronautic industry. It is still very challenging to estimate the instantaneous angular speed (IAS) through the aircraft
Yi Wang, B. Tang, Yi Qin, Tao Huang
semanticscholar   +1 more source

Improving angular speed uniformity by reparameterization

Computer Aided Geometric Design, 2013
We introduce the notion of angular speed uniformity as a quality measure for parameter-izations of plane curves and propose an algorithm to compute uniform reparameterizations for quadratic and cubic curves. We prove that only straight lines have uniform rational parameterizations.
Yang, Jing, Wang, Dongming, Hong, Hoon
openaire   +2 more sources

Using a reed switch to measure the angular speed of a fidget spinner

The Physical Educator, 2020
We have designed an Arduino-based setup to study the angular speed of a fidget spinner. The apparatus uses a reed switch to detect the magnetic field of a magnet placed in one of the spinner blades.
V. Oliveira
semanticscholar   +1 more source