Dissertation > Excellent graduate degree dissertation topics show

The Shape Optimal Design of Bioprosthetic Heart Valve on Computer-Aided Industrial Design

Author: HaoLiQing
Tutor: YuanQuan
School: Shandong University
Course: Art of Design
Keywords: Bioprosthesis CAID Parametric model Finite Element Analysis Auxiliary mold design
CLC: TP391.72
Type: Master's thesis
Year: 2009
Downloads: 76
Quote: 2
Read: Download Dissertation

Abstract


Valve replacement surgery is to save valvular heart disease in patients with life-effective means, since the 1860s, since the artificial heart valves are increasingly being used to treat heart valve disease. With the human heart valve flow field theory and biomaterials theoretical deepening of the study, focusing on artificial biological valves antithrombotic, anti-calcification, greatly improve the life of the expanded computer-aided heart valve design theory and technology studies and flap frame processing computer-aided mold design exhibit broad prospects. This article based on cardiac anatomy in order to approach or reach the body's natural heart valve performance for the purpose of the traditional design theory and modern design methods proposed by combining build artificial biological heart valves parametric model of the new method. To collect clinical cardiac valves dynamic parameters for the foundation, through the human heart valves natural form of guiding a bioprosthetic valve basic prototype, build bioprosthesis parametric design platform, the use of CAID parameterization software Pro / E, respectively, create documents in space geometry Equation of a paraboloid, spherical surface, cylindrical surface and the ellipsoid, followed sequentially with its corresponding inverted conical surface intersecting determine boundary lines and significant points spatial location get a series of more precise dimensions, create leaflets parametric model and using the finite element software ABAQUS each configuration parameter changes the valve leaflets were stress analysis. Finite element analysis is widely used heart valves stress calculation method, is an artificial heart valve anti-fatigue, anti-calcification design is the key step. The finite element software itself exists modeling weak shortcomings, computer-aided heart valve design The introduction of artificial biological valves parametric modeling provides a great convenience and assurance modeling the effect of the premise to further improve the parameter accuracy. Artificial heart valves computer-aided design of biological valves finite element analysis to create the conditions, while according to the finite element analysis results evaluating computer-aided design modeling pros and cons of, and then select an optimized biological valves valve type. The text of the different configurations, different thickness and different material properties and other leaflets parametric models are analyzed, and in the finite element analysis results under the guidance by comparing the configuration leaflet stress distribution found: the ellipsoid surface Basic configuration for the first main valve leaflets peak stress than other type surface leaflets and the first main peak stress ellipsoid surface leaflets leaflets than other type surface stress distribution is more uniform and reasonable. Therefore thesis ellipsoid as a biological valve leaflets basic configuration and used biological valves valve frame mold design, production. Bioprosthesis valve bioprosthesis frame mold design is based on results of the analysis is based on the mechanical properties and biological valves valve rack expansion algorithm discussed in detail and expanded. And applied computer-aided mold design modularization completed bioprosthesis stent mold design, valve bioprosthesis frame precision molding and processing has laid a good foundation.

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  4. Based on statistical methods of magnetic resonance imaging of the human brain image segmentation and three-dimensional analysis of the data,R445.2
  5. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  6. Three-dimensional angle interlock woven composites mechanical properties of low-velocity impact and Finite Element Analysis,TB332
  7. Based on a sample study of the finite element mesh model optimization,TB114
  8. New tamping unit design and characteristics of electro-hydraulic shaker,U216.6
  9. The Study of Bending Fatigue Strength of 20CrMoH Gear,TH132.41
  10. The Buckling and Postbuckling Analysis of Flat Composite Stiffened Panels Loaded in Axial Compression,TB332
  11. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  12. Low Voltage Driving Ultrasonic Motors Based on Multilayer Piezoelectric Ceramics,TM359.9
  13. Finite Element Analysis of the Machine-locked Drilling Rod of Rotary Drill,TE922
  14. Acoustics-Structure Coupled Analysis and Its Application in Simulation of Sound Transmission in Ear,R764
  15. The Stres Analysis of Armature with Different Structure Shapes During Railgun’s Launch Process,TM33
  16. Finite Element Analysis and Rotor Vibration Compensation on Bearingless Permanent Magnet Slice Motors,TM351
  17. Research and Design of Permanent Magnet Linear Synchronous Motors with Electromagnetic Low Speed,TM341
  18. Structural Strength and Vibration Analysis of the Turbo-generator Stator,TM311
  19. The Structural Design and Experimental Research on Kilometer Pitch Carbon Fiber Roll-up System,TQ342.742
  20. Research on the Expansion Technology of the Rotary Expandable System,TE358.4
  21. Numerical Simulation of the Flow Line of SCR and Seafloor Interaction,TE952

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Machine-assisted technology > Machine -aided design (CAD), aided drawing
© 2012 www.DissertationTopic.Net  Mobile