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Metodología de síntesis óptima dimensional de mecanismos incluyendo objetivos de posición y velocidad
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Informations générales
Auteur de Juan, Ana
Publié  Universidad de Cantabria, Santander, Spain, 2011
Edition  
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Publications scientifiques
2000 et après
Images
 
System flow chart of the mechanism design process
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Difference between a global and a local optimum.
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Flow chart for the optimization methods based on the gradient.
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Variation of the aim function along the fall direction
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Hoekens mechanism
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Mixted and natural coordinates.
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Flow chart of the optimization process.
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Kinematic definition of the articulated quadrilateral
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Initial mechanism with desired and obtained trajectories
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Mechanism after optimization process
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Flow diagram for the optimization process.
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ESF as unimodal function.
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Flow diagram of the calculus of advance modulus of the ESF using the gradient method.
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Delimitation of the minimum of the avance modulus using the golden method.
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Delimitation of the minimum of the avance modulus
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Convergence of the minimum using the golden method.
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Kinematic definition of the Ackermann direction mechanism.
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Desired structural error for the pinion and rack mechanism.
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Flow chart of the convergence of the minimum in the calculus of the advance modulus using the golden method.
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Flow chart of the calculus of the advance modulus using the accelerated method.
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Quadratic interpolation of the ESF.
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Flow chart of the calculus of the advance modulus using the quadratic interpolation method.
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Possible situations for the adjustment of the parabola of the ESF.
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Armijo rule.
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Flow chart of the calculus of the advance modulus using the Armijo rule.
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Optimum mechanisms with several advance modules.
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Comparative of the results with different advance modulus.
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Detection and correction of defects during the calculus of the synthesis error.
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Rectangular articulated quadrilateral.
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Fisrt singular position of the rectangular quadrilateral.
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Determinant of the Jacobian of the rectangular quadrilateral
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First branch of the first singular position of the rectangular quadrilateral
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Determinant of the Jacobian in the first branch of the first singular position
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Second branch of the first singular position of the rectangular quadrilateral
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Determinant of the Jacobian in the second branch of the first singular position of the rectangular quadrilateral
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Constant branch.
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Determinant of the Jacobian in the constant branch.
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Initial mechanism to be optimizated.
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Initial desired error in the optimization of a mechanism.
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Final mechanism after an optimization process
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Final structural error after an optimization process.
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Desired and obtained trajectories of a mechanism.
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Desired and obtained trajectories after positioning in a better way the mechanism
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Flow chart of the trasnlation and rotation of the mechanism.
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Final mechanism with the strategies of translation and rotation
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Final ESF with translation and rotation strategies.
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Flow chart of the integrated optimization process
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Optimum mechanism with different advance modulus for integrated optimization
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Development of the ESF with different advance modulus for integrated optimization.
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Comparative of the results with integrated optimization.
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Ackermann condition.
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Rotation of the left wheel depending on the rotation of the right one
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Input and output struts linked to the wheels
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Vehicle steering mechanisms
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Kinematic description of the rack and pinion mechanism.
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Kinematic description of the six bars mechanism.
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Final structural error comparison for the pinion and rack mechanism.
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Final structural error comparison for the Ackermann direction mechanism.
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Final structural error comparison for the central crowbar mechanism.
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Kinematic definition of the spatial pinion and rack
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Pinion and rack mechanism after optimization process
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Structural error of the spatial pinion and rack.
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Structural error function of the spatial pinion and rack.
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Transmission angles for the direction mechanisms.
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Optimum solutions for the articulated quadrilateral
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Transmission angles for an optimized pinion and rack mechanism
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Optimized pinion and rack mechanism.
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Structural error for the Ackermann mechanism.
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Transmission angles for the optimized direction Ackermann mechanism
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Optimized direction Ackermann mechanism
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Structural error of the optimized central crowbar mechanism
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Transmission angles for the optimized central crowbar mechanism
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Optimized central crowbar mechanism
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Flow chart of the optimization process
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Kinematic definition of the articulated quadrilateral
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Articulated quadrilateral and generated velocities
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Articulated quadrilateral after optimization.
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ESF of the articulated quadrilateral. Coordination approach.
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Articulated quadrilateral after optimization.
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ESF of the articulated quadrilateral. Approach without coordination.
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Flow chart of the optimization process
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Kinematic definition of the mechanism with 1 order objetives.
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Final mechanism with 0 and 1 order objetives
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ESF of the process with 0 and 1 order objetives. Caracteristic time.
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Initial and final velocities for the process with 0 and 1 order objetives
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Final mechanism with 0 and 1 order objetives with adimensional terms
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Process ESF with 0 and 1 order objetives with adimensional terms.
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Initial and final velocities with 0 and 1 oreder objetives with adimensional terms
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Kinematic definition of the suspension mechanism.
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Modelization of a schock absorber using a prismatic joint.
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Initial suspension mechanism to be optimized.
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Final suspension mechanism after being optimized.
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Evolution of the ESF during the optimization of a suspension mechanism.
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Initial, final and desired synthesis errors
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Kinematic definition of the fast return mechanism
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Desired velocity depending on the crank rotation
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Evolution of the ESF during the optimization of a fast return mechanism.
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Initial and final synthesis error during the optimization of a fast return mechanism
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Fast return mechanism
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Comparison of solutions for pinion rack mechanism.
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Comparison of results for the Ackermann direction mechanism.
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Comparativa de soluciones para el mecanismo de palanca central.
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Permanent links
DMG-Lib FaviconDMG-Lib https://www.dmg-lib.org/dmglib/handler?docum=24371009
Europeana FaviconEuropeana  http://www.europeana.eu/portal/record/2020801/dmglib_handler_docum_24371009.html
Data provider
UBCUniv. Basque C.  http://www.ehu.es/compmech/welcome/Home.html
Administrative information
Time of publication 2011

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