Results 41 to 50 of about 425 (199)
Известия высших учебных заведений: Нефть и газ, 2016 The aim of this thesis is to develop computer program shows generating process of the longitudinal-crowned gear for straight bevel gears with a small shaft angle with non-generated gear and generated pinion.
A. A. Pazyak, V. N. Syzrantsev
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A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes
Advanced Science, Volume 13, Issue 32, 9 June 2026.We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen +13 more
wiley +1 more source
The Comparison of Straight Tooth Bevel Gear and Spiral Bevel Gear about the Stress of Gear Tooth
Instrumentation and Equipments, 2016 大型的数控龙门加工中心中，卧式主轴头通过一对直齿圆锥齿轮副来作为相交轴的传动部件。其加工中心在高速运转时，直齿圆锥齿轮副会发出大的噪声和冲击，导致加工中心的加工质量和精度下降。为了解决这一问题，提出采用弧齿圆锥轮副代替直齿圆锥齿轮副。基于ANSYS Workbench软件，分析直齿圆锥齿轮副与弧齿圆锥齿轮副的齿跟弯曲应力和齿面接触应力的状况，在此基础上，得出弧齿圆锥齿轮副在传动过程中其轮齿的综合力学性能要优越于直齿圆锥齿轮副相应的轮齿性能。这使得数控龙门加工中心可回转式卧式主轴头在更换前70分贝的噪声降至到60分贝，噪声得到了显著的降低。 In the large CNC gantry machining center, through a pair of straight bevel gear ...
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Limnology and Oceanography: Methods, Volume 24, Issue 5, May 2026.Abstract Benthic incubation chambers enclose a known volume of water overlying a known area to measure water chemistry changes and are typically used to quantify the metabolic activity of benthic organisms or communities. Here we present an economical benthic incubation chamber for shallow, low‐flow environments, built using off‐the‐shelf components ...
Luke D. Groff +2 more
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Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators
Advanced Materials Technologies, Volume 11, Issue 8, 17 April 2026.Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks +2 more
wiley +1 more source
Jixie chuandong, 2010 In order to establish the straight bevel gear sketches and simulation model database,the straight bevel gear profile involute mathematical model is established,and a bevel gear tooth involute profile of the spherical projection formed into the circle ...
胡志勇, 张国兴, 刘海, 刘长增
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Molecular Photogearing for Controlling Rotary Motion at the Nanoscale
ChemPlusChem, Volume 91, Issue 4, April 2026.Molecular gears capable of controlling and transmitting rotary motion at the nanoscale are indispensable for the construction of artificial molecular machines. In this concept, we discuss how molecular photogears featuring a propeller‐shaped motif attached to a light‐driven molecular motor offer new possibilities to perform these tasks with better ...
Enrique M. Arpa, Bo Durbeej
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Residual Stress and Deformation Analysis in Machining Split Straight Bevel Gears
Strojniški vestnik – Journal of Mechanical Engineering, 2021 In the machining of split straight bevel gears, the stiffness changes and internal stress are redistributed, which leads to serious deformation of the gear blank after machining. To rectify this problem, q finite element model is established by transforming the processing information of the gear blank into the finite element simulation calculation ...
Wang, Bin +6 more
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Jixie chuandong, 2017 For the practical engineering problems,the dynamic transmission error measurement of a two-stage cylindrical gear-bevel gear high-speed transmission system with a straight bevel gear pair and a zero degree spiral bevel gear pair is carried out based on ...
Liu Yang, Tang Jinyuan, Bai Fan
doaj
Advanced Science, Volume 13, Issue 15, 13 March 2026.Sensorized fingertips are needed to unlock robotic dexterity, versatility, and diverse interactions. Here, 15 identically‐shaped robotic fingertips are benchmarked by a fully automated toolchange system, covering eight different materials and six broadly‐ranging sensing mechanisms.
David Hardman +5 more
wiley +1 more source