Results 231 to 240 of about 277,948 (267)

Histotripsy of the Proximal Ureter and Renal Pelvis: Evaluation of Urothelial Injury in a Porcine Survival Model. [PDF]

J Vasc Interv Radiol
Kisting AL, Zlevor AM, Falk KL, Kisting MA, Laklouk IA, Wagner MG, White JK, Winterholler JE, Jentink MS, Abel EJ, Knavel Koepsel EM, Hinshaw JL, Swietlik JF, Mao L, Minesinger GM, Laeseke PF, Ziemlewicz TJ, Lee FT.   +17 more
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Microstructure Evolution and Mechanical Properties of 7A52 Aluminum Alloy Thin Sheet Repaired with Friction Stir Surfacing. [PDF]

Materials (Basel)
Li X, Shi C, Han G, Liu H, Li X, Liu R.
europepmc   +1 more source

Depositional Environment and Ecological Response of Bioconstructions: A Case Study of Southern China (Guizhou Province) in Moscovian-Gzhelian. [PDF]

Life (Basel)
Li X, Gong E, Zhang Y, Guan C, Huang W.
europepmc   +1 more source

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The spherical involute bevel gear: its geometry, kinematic behavior and standardization

Journal of Mechanical Science and Technology, 2011
Bevel gear processing has diversified based on constant technical developments in forging, CNC cutting and hob design. Standardization of bevel gears is in higher demand than ever for different bevel gear systems that have different shapes and forms according to processing methods.
Hyoung Woo Lee
exaly   +2 more sources

A kinematic investigation of a spherical involute bevel-geared system

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2010
This study gives an exact definition of the spherical involute curved face and the pitch azimuthal angle of a bevel-geared system. Using the coordinate-transformation method, it derives the kinematic relations between the operating pressure angles, pitch azimuthal angles, operating pitch cone angles, base cone angles, and pitch action angles.
H W Lee, K O Lee, D H Chung
exaly   +2 more sources

The Modeling of Bevel Gears Using the Exact Spherical Involute

Journal of Mechanical Design, 1994
The solid modeling of bevel gears has been recognized as a major design challenge. Various approaches have been proposed to approximate the theoretical involute-generated contact surface of bevel gears. As a means to accurately represent contact surfaces of these gears, the exact spherical involute is introduced here.
M. J. Al-Daccak, J. Angeles, M. A. Gonza´lez-Palacios   +2 more
openaire   +1 more source

A rack-cutter surface used to generate a spherical gear with discrete ring-involute teeth

International Journal of Advanced Manufacturing Technology, 2005
A spherical gear is a mechanism for transferring motion. This type of gear has more than one direction of freedom, so it is very suitable for a flexible robot wrist. In general, spherical gear mechanisms have two degrees of freedom. Thus, from a geometric viewpoint, a mathematical derivation for producing a spherical gear with discrete ring-involute ...
Shyue-Cheng Yang
exaly   +2 more sources

Kinematic properties of planar and spherical logarithmic spirals: Applications to the synthesis of involute tooth profiles

Mechanism and Machine Theory, 2019
Abstract The design of the contact profiles of spur gears with involute teeth is well developed, with industry standards that set values for pressure angle and ratios for virtually all dimensions. This is not the case for bevel gears, where involute teeth, although known for several years, haven’t been adopted by industry.
Hellmuth Stachel, Jorge Angeles, Giorgio FIGLIOLINI   +2 more
exaly   +2 more sources

Analysis and Manufacture of Skew Bevel Gears with Spherical Involute

Applied Mechanics and Materials, 2013
Skew bevel gears are fundamental element of transmission system. Processing quality of skew bevel gears has impact on the performance of system. An accurate processing method of tooth surface of skew bevel gears with spherical involute is proposed. According to the space meshing theory, the meshing equation of skew bevel gears is built by the theory of
Bai Chao Wang, Guang Cheng Zhang, Zhao Jun Yang, Yan Kun Wang, Ya Qin Zhang, Chun De Tian   +5 more
openaire   +1 more source

The Modeling of Bevel Gears Using the Exact Spherical Involute

15th Design Automation Conference: Volume 1 — Computer-Aided and Computational Design, 1989
Abstract The solid modeling of bevel gears has been recognized as a major design challenge. Various approaches have been proposed to approximate the theoretical involute-generated contact surface of bevel gears. As a means to accurately represent contact surfaces of these gears, the exact spherical involute is introduced here.
M. J. Al-Daccak, J. Angeles
openaire   +1 more source