From: Numerical Study of Forward and Backward Whirling of Drill-String

Slides:



Advertisements
Similar presentations
Date of download: 5/28/2016 Copyright © ASME. All rights reserved. From: Modal Parameter Extraction of a Turboset From High Speed Balance Data J. Eng.
Advertisements

Date of download: 5/30/2016 Copyright © ASME. All rights reserved. From: Introduction of the Element Interaction Technique for Welding Analysis and Simulation.
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.
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: Calibrated Coarse Grid-Finite Volume Method for the Fast Calculation of the Underhood.
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: Computation of Lower Bounds for a Multiple Depot, Multiple Vehicle Routing Problem.
Date of download: 9/19/2016 Copyright © ASME. All rights reserved. From: A Comparative Study on Motion Characteristics of Three Two-Degree-of-Freedom Pointing.
Date of download: 10/5/2017 Copyright © ASME. All rights reserved.
From: Time Delay Control for Two van der Pol Oscillators
Date of download: 10/7/2017 Copyright © ASME. All rights reserved.
Date of download: 10/8/2017 Copyright © ASME. All rights reserved.
From: Nonlinear Dynamical Analysis of the “Power Ball”
From: Nonlinear Dynamical Analysis of the “Power Ball”
From: Forced Flexural Gravity Wave Motion in Two-Layer Fluid
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: 10/16/2017 Copyright © ASME. All rights reserved.
Date of download: 10/16/2017 Copyright © ASME. All rights reserved.
Date of download: 10/16/2017 Copyright © ASME. All rights reserved.
Date of download: 10/17/2017 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: 10/22/2017 Copyright © ASME. All rights reserved.
Date of download: 10/23/2017 Copyright © ASME. All rights reserved.
From: Synchronization of Slowly Rotating Nonidentically Driven Pendula
Date of download: 10/24/2017 Copyright © ASME. All rights reserved.
Date of download: 10/25/2017 Copyright © ASME. All rights reserved.
Date of download: 10/25/2017 Copyright © ASME. All rights reserved.
Journal of Vision. 2004;4(9):3. doi: /4.9.3 Figure Legend:
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: 10/26/2017 Copyright © ASME. All rights reserved.
From: Automatically Creating Design Models From 3D Anthropometry Data
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: 10/31/2017 Copyright © ASME. All rights reserved.
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.
Date of download: 11/3/2017 Copyright © ASME. All rights reserved.
From: A New Design of Horizontal Electro-Vibro-Impact Devices
Date of download: 11/4/2017 Copyright © ASME. All rights reserved.
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: 11/8/2017 Copyright © ASME. All rights reserved.
Journal of Vision. 2012;12(6):33. doi: / Figure Legend:
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: 11/10/2017 Copyright © ASME. All rights reserved.
Date of download: 11/13/2017 Copyright © ASME. All rights reserved.
Date of download: 11/16/2017 Copyright © ASME. All rights reserved.
Date of download: 12/16/2017 Copyright © ASME. All rights reserved.
Date of download: 12/20/2017 Copyright © ASME. All rights reserved.
Date of download: 12/20/2017 Copyright © ASME. All rights reserved.
Date of download: 12/22/2017 Copyright © ASME. All rights reserved.
From: Trichromatic reconstruction from the interleaved cone mosaic: Bayesian model and the color appearance of small spots Journal of Vision. 2008;8(5):15.
Date of download: 12/24/2017 Copyright © ASME. All rights reserved.
Date of download: 12/24/2017 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: 12/27/2017 Copyright © ASME. All rights reserved.
Date of download: 12/29/2017 Copyright © ASME. All rights reserved.
From: Variational Integrators for Structure-Preserving Filtering
From: Dynamics of a Basketball Rolling Around the Rim
Design of a Wireless Biological Signal Conditioning System1
Presentation transcript:

From: Numerical Study of Forward and Backward Whirling of Drill-String Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Study of Forward and Backward Whirling of Drill-String J. Comput. Nonlinear Dynam. 2017;12(6):061009-061009-7. doi:10.1115/1.4037318 Figure Legend: (a) A schematic of the 2DOF rotor system to describe a planar motion of the BHA using a disk of mass m rotating around its centroid (point O2) with velocity Ω, inside the borehole of clearance γ and (b) a velocity diagram

From: Numerical Study of Forward and Backward Whirling of Drill-String Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Study of Forward and Backward Whirling of Drill-String J. Comput. Nonlinear Dynam. 2017;12(6):061009-061009-7. doi:10.1115/1.4037318 Figure Legend: Conditions determining transitions between the operational modes of the system: N—noncontact, C—contact, and CS—contact-stick

From: Numerical Study of Forward and Backward Whirling of Drill-String Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Study of Forward and Backward Whirling of Drill-String J. Comput. Nonlinear Dynam. 2017;12(6):061009-061009-7. doi:10.1115/1.4037318 Figure Legend: A parameter space diagram showing the most probable whirling responses, for given mass M and angular speed Ω. The examples of the main whirling types are NPF (orange color, Ω = 3.0 rad/s, top left panel), CPF (red color, Ω = 4.5 rad/s, top right panel), CCF (black color, Ω = 5.5 rad/s, bottom left panel), and CPB (blue color, Ω = 10.5 rad/s, bottom right panel) (see color figure online).

From: Numerical Study of Forward and Backward Whirling of Drill-String Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Study of Forward and Backward Whirling of Drill-String J. Comput. Nonlinear Dynam. 2017;12(6):061009-061009-7. doi:10.1115/1.4037318 Figure Legend: Probabilities of observing different whirling responses as a function of Ω for different WOBs: (a) M = 209.98 kg, (b) M = 221.20 kg, (c) M = 232.41 kg, (d) M = 243.12 kg, (e) M = 253.82 kg, (f) M = 265.04 kg, and (g) M = 276.25 kg. The panels on the left present an overall trend where forward/backward responses are considered together as noncontact periodic (pink), contact periodic (green), and chaotic (black) whirls, whereas the panels on the right depict probabilities for each specific case (see color figure online).

From: Numerical Study of Forward and Backward Whirling of Drill-String Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Study of Forward and Backward Whirling of Drill-String J. Comput. Nonlinear Dynam. 2017;12(6):061009-061009-7. doi:10.1115/1.4037318 Figure Legend: Basins of attraction showing possible co-existing whirling solutions depending on the initial conditions (r0, θ0) and the angular velocity Ω: (a) Ω = 3.0 rad/s, (b) Ω = 4.5 rad/s, (c) Ω = 5.5 rad/s, and (d) Ω = 10.5 rad/s (see color figure online)