Results 11 to 20 of about 28,904 (158)
Radius of curvature analysis of oscillating follower cylindrical cam’s expansion pitch curve
Advances in Mechanical Engineering, 2015 The currently used method to calculate radius of curvature of a cylindrical cam’s planar expansion pitch curve produces errors. Therefore, there is an urgent need to find an accurate method for cylindrical cam design.
Junhua Chen, Junde Wu, Tengyue Tang
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Evaluation of the height of internal periodic triangular surfaces by ultrasonic backscatter
Mechanical Engineering Journal, 2018 Surface texture is an important parameter which affects functions and performance of industrial components. Although stylus and optical techniques are commonly used for evaluating the surface topology, they are applicable only to accessible surfaces.
Chanh Nghia NGUYEN +2 more
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Research of a Design Method of Uniform Non-circular Gear and Its Transmission Characteristic
Jixie chuandong, 2021 In order to meet the requirements of kinematic characteristics of driven gear，a design method of uniform non-circular gear is proposed. Based on the concept of uniform non-circular gear，the pitch curve equation is derived on the basis of velocity curve ...
Hongping Zhao, Caifen Guo
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Displacement prediction and optimization of a non-circular planetary gear hydraulic motor
Advances in Mechanical Engineering, 2021 The non-circular planetary gear hydraulic motor is a low-speed and high-torque hydraulic motor with excellent performance. It has the characteristics of a wide speed range, low weight and is widely used in various fields.
Biao Zhang +3 more
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Applied Sciences, 2023 The double arc pitch curve is a novel way for creating a non-circular gear tooth profile. Aiming at the problems of the rounding of non-integer teeth and the nonlinear equation system in the construction of double circular arc tooth profile, an active ...
Kang Wang +3 more
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Trouble With The Curve: Improving MLB Pitch Classification
, 2013 The PITCHf/x database has allowed the statistical analysis of of Major League Baseball (MLB) to flourish since its introduction in late 2006. Using PITCHf/x, pitches have been classified by hand, requiring considerable effort, or using neural network clustering and classification, which is often difficult to interpret.
Pane, Michael A. +3 more
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Frontiers in Sports and Active Living, 2023 ObjectivesThe purpose of this study was to deepen our understanding of pitches and to obtain basic knowledge about pitches by comparing 4-seam and other pitches in Major League Baseball (MLB).MethodsWe analyzed big data for 1,820 professional baseball ...
Yasuhiro Hashimoto +3 more
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High-Fidelity CFD-Based Pitch Curve Correction for IEA 15MW Wind Turbine [PDF]
E3S Web of ConferencesAddressing the discrepancy between the blade pitch strategy designed via Blade Element Momentum (BEM) theory and the results obtained from Computational Fluid Dynamics (CFD) simulations, this study employs a high-fidelity CFD approach to correct the ...
Zhang Xu, Zhang Lijun
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Actuators, 2022 This paper presents a novel cam-based variable stiffness actuator (VSA). It significantly differs from its counterparts in that the external load distributes on its two motors with a small difference. It is a feasible method to improve VSA’s output power,
Fanghua Mei +3 more
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International Journal of Electrical Power & Energy SystemsAccurately tracking power command while minimizing pitch action under safe operational constraints remains one of the key challenges in active power control (APC) research of wind turbines (WTs).
Huimin Gu +5 more
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