Results 11 to 20 of about 63,733 (300)

A General Design Method of Cam Profile Based on Cubic Splines and Dynamic Model: Case Study of a Gravity-Driven Tricycle

open access: yesMathematics, 2022
This paper proposes a general design method for cams based on the kinematics and dynamics of a mechanical system. According to the actuator’s trajectory, the cam profile is generated in reverse based on the kinematic model of the system. Firstly, the cam
Zhihao Jiang   +6 more
doaj   +1 more source

Quasi Optimal Gait of a Biped Robot with a Rolling Knee Kinematic [PDF]

open access: yes, 2011
In this paper, we address the problem of optimization of trajectories for a new class of biped robot. The knees of this biped are similar as the anthropomorphic one and have a rolling contact between the femur and the tibia.
ABBA, Gabriel   +2 more
core   +5 more sources

Nonparametric regression analysis [PDF]

open access: yes, 2015
textNonparametric regression uses nonparametric and flexible methods in analyzing complex data with unknown regression relationships by imposing minimum assumptions on the regression function.
Malloy, Shuling Guo
core   +1 more source

Sound Generating Mechanism of Ball Splines

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2008
This article deals with the sound generating mechanism of ball splines in operation. The results of specific experiments and analyses led to the following conclusions : (1) In the sound wave forms of the ball splines, sound pulses with ball passage period Tp are observed. (2) The main cause of the ball spline sound is the collision between the ball and
Hiroyuki OHTA   +3 more
openaire   +2 more sources

Forming Mechanism of High‐Speed Cold Roll Beating of Spline Tooth [PDF]

open access: yesAdvances in Materials Science and Engineering, 2018
The spline tooth of ASTM 1045 was fabricated by high‐speed cold roll‐beating (HSCRB) process at room temperature. Microhardness of the spline tooth was examined by a nanoindenter. The grains and misorientation angle distributions were measured by electron backscatter diffraction (EBSD).
Ting Niu   +3 more
openaire   +2 more sources

Quasi optimal sagittal gait of a biped robot with a new structure of knee joint [PDF]

open access: yes, 2013
The design of humanoid robots has been a tricky challenge for several years. Due to the kinematic complexity of human joints, their movements are notoriously difficult to be reproduced by a mechanism. The human knees allow movements including rolling and
ABBA, Gabriel   +2 more
core   +6 more sources

Modeling of Hormone Secretion‐Generating Mechanisms with Splines: A Pseudo‐Likelihood Approach [PDF]

open access: yesBiometrics, 2007
SummaryA flexible and robust approach is proposed for the investigation of underlying hormone secretion‐generating mechanisms. Characterizing hormone time series is a difficult task as most hormones are secreted in a pulsatile manner and pulses are often masked by slow decay.
Liu, A, Wang, YD
openaire   +3 more sources

Surface work-hardening optimization of cold roll-beating splines based on an improved double-response surface-satisfaction function method

open access: yesAdvances in Mechanical Engineering, 2018
The work hardening of a spline during cold roll-beating is used as an indicator to evaluate the mechanical properties of the surface. To further optimize the work-hardening degree of a cold roll-beating spline surface, weight theory and satisfaction ...
Fengkui Cui   +5 more
doaj   +1 more source

Repairing triangle meshes built from scanned point cloud [PDF]

open access: yes, 2007
The Reverse Engineering process consists of a succession of operations that aim at creating a digital representation of a physical model. The reconstructed geometric model is often a triangle mesh built from a point cloud acquired with a scanner ...
MORARU, George   +2 more
core   +5 more sources

Effect of Industrial Heat Treatment and Barrel Finishing on the Mechanical Performance of Ti6Al4V Processed by Selective Laser Melting [PDF]

open access: yes, 2020
Additive manufacturing is now capable of delivering high-quality, complex-shaped metallic components. The titanium alloy Ti6Al4V is an example of a printable metal being broadly used for advanced structural applications.
Boschetto, Alberto   +4 more
core   +1 more source

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