Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody.

Slides:



Advertisements
Similar presentations
Date of download: 6/3/2016 Copyright © ASME. All rights reserved. From: Floating Offshore Wind Turbine Dynamics: Large-Angle Motions in Euler-Space J.
Advertisements

Date of download: 6/25/2016 Copyright © ASME. All rights reserved. From: Optimal Design of Solenoid Actuators Driving Butterfly Valves J. Mech. Des. 2013;135(9):
Date of download: 7/2/2016 Copyright © ASME. All rights reserved. From: Improving Machine Drive Dynamics: A Structured Design Approach Toward Balancing.
Date of download: 7/6/2016 Copyright © ASME. All rights reserved. From: Reduction of Physical and Constraint Degrees-of-Freedom of Redundant Formulated.
Date of download: 7/7/2016 Copyright © ASME. All rights reserved. From: Projective Constraint Stabilization for a Power Series Forward Dynamics Solver.
Date of download: 7/8/2016 Copyright © ASME. All rights reserved. From: Stabilization of a Dynamic Walking Gait Simulation J. Comput. Nonlinear Dynam.
Date of download: 7/8/2016 Copyright © ASME. All rights reserved. From: Dynamics and Balance Control of the Reaction Mass Pendulum: A Three-Dimensional.
Date of download: 9/19/2016 Copyright © ASME. All rights reserved. From: Dynamic Modeling of a Six Degree-of-Freedom Flight Simulator Motion Base J. Comput.
ME451 Kinematics and Dynamics of Machine Systems Dynamics of Planar Systems December 9, 2010 Solving Index 3 DAEs using Newmark Method © Dan Negrut, 2010.
Date of download: 9/26/2017 Copyright © ASME. All rights reserved.
Date of download: 10/5/2017 Copyright © ASME. All rights reserved.
From: Increasing the Efficiency of Energy Scavengers by Magnets
Date of download: 10/6/2017 Copyright © ASME. All rights reserved.
From: New Model of a CVT Rocker-Pin Chain With Exact Joint Kinematics
Date of download: 10/7/2017 Copyright © ASME. All rights reserved.
Date of download: 10/7/2017 Copyright © ASME. All rights reserved.
From: Nonlinear Dynamical Analysis of the “Power Ball”
From: Nonlinear Dynamical Analysis of the “Power Ball”
Date of download: 10/12/2017 Copyright © ASME. All rights reserved.
From: Nonlinear Vibrations and Chaos in Floating Roofs
Date of download: 10/13/2017 Copyright © ASME. All rights reserved.
Date of download: 10/13/2017 Copyright © ASME. All rights reserved.
Date of download: 10/13/2017 Copyright © ASME. All rights reserved.
Date of download: 10/14/2017 Copyright © ASME. All rights reserved.
Date of download: 10/17/2017 Copyright © ASME. All rights reserved.
Date of download: 10/18/2017 Copyright © ASME. All rights reserved.
Date of download: 10/19/2017 Copyright © ASME. All rights reserved.
Date of download: 10/21/2017 Copyright © ASME. All rights reserved.
Date of download: 10/22/2017 Copyright © ASME. All rights reserved.
Date of download: 10/22/2017 Copyright © ASME. All rights reserved.
From: ANCF Tire Assembly Model for Multibody System Applications
From: Synchronization of Slowly Rotating Nonidentically Driven Pendula
Date of download: 10/25/2017 Copyright © ASME. All rights reserved.
Date of download: 10/25/2017 Copyright © ASME. All rights reserved.
Date of download: 10/28/2017 Copyright © ASME. All rights reserved.
Date of download: 10/29/2017 Copyright © ASME. All rights reserved.
Date of download: 10/29/2017 Copyright © ASME. All rights reserved.
Date of download: 10/29/2017 Copyright © ASME. All rights reserved.
Date of download: 10/31/2017 Copyright © ASME. All rights reserved.
Date of download: 11/1/2017 Copyright © ASME. All rights reserved.
From: A New Software Approach for the Simulation of Multibody Dynamics
Date of download: 11/2/2017 Copyright © ASME. All rights reserved.
Date of download: 11/2/2017 Copyright © ASME. All rights reserved.
From: Flight Dynamics and Simulation of Laser Propelled Lightcraft
Date of download: 11/3/2017 Copyright © ASME. All rights reserved.
From: A Hybrid Physical-Dynamic Tire/Road Friction Model
From: Numerical Optimization of the Thermoelectric Cooling Devices
Date of download: 11/5/2017 Copyright © ASME. All rights reserved.
From: Accuracy of Wearable Sensors for Estimating Joint Reactions
Date of download: 11/7/2017 Copyright © ASME. All rights reserved.
Date of download: 11/7/2017 Copyright © ASME. All rights reserved.
Date of download: 11/8/2017 Copyright © ASME. All rights reserved.
Date of download: 11/8/2017 Copyright © ASME. All rights reserved.
Date of download: 11/8/2017 Copyright © ASME. All rights reserved.
Date of download: 11/9/2017 Copyright © ASME. All rights reserved.
Date of download: 11/9/2017 Copyright © ASME. All rights reserved.
Date of download: 11/9/2017 Copyright © ASME. All rights reserved.
Date of download: 11/9/2017 Copyright © ASME. All rights reserved.
Date of download: 11/10/2017 Copyright © ASME. All rights reserved.
Date of download: 11/11/2017 Copyright © ASME. All rights reserved.
Date of download: 11/14/2017 Copyright © ASME. All rights reserved.
Date of download: 11/15/2017 Copyright © ASME. All rights reserved.
Date of download: 12/18/2017 Copyright © ASME. All rights reserved.
Date of download: 12/23/2017 Copyright © ASME. All rights reserved.
Date of download: 12/26/2017 Copyright © ASME. All rights reserved.
Date of download: 12/26/2017 Copyright © ASME. All rights reserved.
Date of download: 12/29/2017 Copyright © ASME. All rights reserved.
Date of download: 12/29/2017 Copyright © ASME. All rights reserved.
From: Dynamics of a Basketball Rolling Around the Rim
Date of download: 1/22/2018 Copyright © ASME. All rights reserved.
Presentation transcript:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Geometry description of the planar, rigidly modeled overhead crane Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / The point mass has to follow a linear trajectory from a specified starting point to a fixed end point Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Time history of identified force F and torque M after 300 iterations and initial settings for the first iteration for Ex The initial input for the force is set to F 0 = 0 N for the first iteration. The initial input for the torque is defined as the static torque M 0 = 98.1 N m. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / The convergence analysis of the cost functional for Ex. 5.1 shows that the optimization process reduces the costs to a factor of 10 −7 within 300 iterations Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / A single rigid body is studied for which the moments of inertia parameters describing the inertia tensor are not known. Point S follows a specified motion, and the velocity of point P is measured in order to identify the entries of the inertia tensor. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / The convergence analysis of the cost functional for Ex. 5.2 shows that the optimization process reduces the costs already tremendously within the first 100 iterations. It has to be mentioned that only the costs of every second iteration are depicted here. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Exemplary, the convergence analysis of the moment of inertia I 11 considered in Ex. 5.2 is shown here for 126 iterations. Only the costs of every second iteration are depicted here. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / A triple inverse pendulum is studied for which the excitation force F is identified which leads to a swing up maneuver into the rest position with φ1=φ2=φ3=π. (a) Geometric description of the inverse pendulum and (b) definition of the necessary parameters for the numerical simulation. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Simulation results of the swing up maneuver of the inverse triple pendulum at six time steps: t = 0.0, 0.7, 1.4, 2.3, and 3.0 s Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Time history of identified force F for the inverse triple pendulum in Ex. 5.3 after 353 iterations. The initial input for the force is set to F 0 = 0 N for the first iteration. Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / The costs according to the end point error considered in Ex. 5.3 decrease to the limit of the value 1.5 after 353 iterations Figure Legend:

Date of download: 6/6/2016 Copyright © ASME. All rights reserved. From: The Use of the Adjoint Method for Solving Typical Optimization Problems in Multibody Dynamics J. Comput. Nonlinear Dynam. 2015;10(6): doi: / Time history of the three angles φ1,φ2, and φ3 in the revolute joints considered in Ex. 5.3 after 353 iterations, where the optimization is stopped since the costs according to the end point error decrease below a prescribed limit value Figure Legend: