Design and analysis of cam lifting curve in applying to transient and heavy load

Yang, Jian Wu; Tan, Jianping; Le, Zeng; Liu, S.

doi:10.5755/j01.mech.20.3.5381

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…Cardona et al (2013) andHidalgo-Martinez et al (2014) further apply Bézier curves to ensure kinematic performances of synthesized cam mechanisms. To improve the transient and heavy load capacity of cam mechanisms, Yang et al (2014) propose a composite cam motion program which combines an involute with a quadratic curve. Sateesh (2014) aims to reduce the velocity, acceleration, and jerk peak values by using non-uniform rational B spline (NURBS) to describe cam motion programs.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of trigonometric motion programs with lower motion characteristics

Hsu

2022

Mech. Sci.

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Abstract. Motion characteristics are dimensionless peak values of velocity, acceleration, jerk, and acceleration multiplied by velocity of a motion program. In general, these peak values of synthesized motion programs should be as low as possible. Some trigonometric motion programs are widely used because they have a good compromise of all motion characteristics. A property in common for trigonometric motion programs is that their acceleration functions can be expressed as a qualitative shape of a sinusoidal function. The interval of the sinusoidal function is divided into several zones having different linear slopes. The acceleration function can be easily shaped by specifying presented phase angle function to synthesize desired motion programs. To improve the kinematic quantities of trigonometric motion programs, this paper addresses an alternative phase angle function to obtain synthesized motion programs with simultaneous reduction in all the motion characteristics. The synthesis process and results are illustrated by examples.

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Section: Introductionmentioning

confidence: 99%

Synthesis of trigonometric motion programs with lower motion characteristics

Hsu

2022

Mech. Sci.

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“…An excellent paper upon optimization of rotation cam mechanism with translating roller follower is due to Flores, [2]. Recently, Yang et al, [3], considers friction for the case of a transient and heavy load cam mechanism and finds the optimum law of motion.…”

Section: Introductionmentioning

confidence: 99%

Rotating Cam and Knife Edge Follower Mechanism Optimisation from Cam Curvature Constraints

Alaci

Ciornei

Filote

2015

AMM

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The work presents an optimisation method for the rotating cam and knife edge follower mechanism using optimisation restraints required to the cam curvature radius when the follower motion law is provided. Imposing a constraint to the cam curvature radius implies a connection between the constructive mechanism parameters. The optimisation condition is plotted in the plane of constructive parameters and a closed curve corresponds to the case of a law of motion with continuous acceleration. If the “characteristic point” is placed outside this region, automatically conducts to fulfilled condition, for any mechanism’s position. For an analytical study, in the present work, the restraint of strictly positive cam curvature radius was imposed.

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