Dissertation > Excellent graduate degree dissertation topics show

The Calculation and Analysis on Longitudinal Ultimate Strength of Ship Hull Girder for Bulk Carrier

Author: WangXu
Tutor: JinChaoGuang
School: Dalian University of Technology
Course: Design and manufacture of ships and marine structures
Keywords: Ultimate strength One-step Progressive Method Reliability Sensitivity analysis
CLC: U661.43
Type: Master's thesis
Year: 2009
Downloads: 158
Quote: 0
Read: Download Dissertation

Abstract


The total vertical hull girder ultimate strength represents the true strength of the hull girder reserves is an important indicator to reflect the structure of the ship security . The bulk carrier structure common norms under the captain ship of 150 meters above the need for ultimate strength check . Currently , the method of calculation of the total longitudinal ultimate strength mainly four categories: direct method , the gradual destruction of the method , the ideal structure element method , nonlinear finite element method . So far, the calculation of the ultimate strength check of mostly still use deterministic safety factor method , deterministic method is difficult to clearly illustrate the various uncertainties , it is difficult to reflect the actual level of safety of the ship . The reliability of the method is based on the form of probability to express it explicitly recognizes the structure there is a certain failure may . In order to objectively judge of Longitudinal ultimate bearing capacity and margin of safety , reliability analysis of the ultimate strength is necessary . In addition to safety, the economy of the ship is also an important problem . Order to improve the economy of the ship , need to know the degree of the influence of various factors on the ultimate strength . In this thesis, a bulk carrier , for example, response to these problems , the overall longitudinal hull girder ultimate strength was calculated and analyzed , the main content of the study are : ( 1 ) the use of the one-step direct method to seek the dissolution of the cargo ship hull Ultimate Longitudinal strength ; ( 2) on the basis of the analysis of structural unit failure mode , according to the progressive destruction of law , the use of the procedures for the preparation of their own bulk carriers ultimate Longitudinal Strength calculation, and the results were analyzed ; ( 3) of the hull girder loads and both the probability of the ultimate strength of the hull girder vertical characteristics , combined with the characteristics of hull girder failure model , this paper improved first order second moment method (AFOSM), the reliability index of export structure and the preparation of the corresponding computer program , the final analysis of the actual safety level of the bulk carrier hull girder . Among them, the paper proposes a Simple Solution to the method of calculation of the probability characteristics of the ultimate strength of the hull girder Longitudinal this method is simple , suitable for engineering applications : (4) based on the progressive destruction method , deck stiffened panel unit as the research object , sensitivity analysis of the various factors that affect the hull girder ultimate longitudinal strength and its size .

Related Dissertations

  1. The Effect of Composite Additive on the SNCR,X701
  2. Development and Preliminary Application of the Questionnaire on Emotional Labour of the Middle School Teacher,B841
  3. The Research on Reliability of Low-Voltage Power Line Communication,TM73
  4. The Research and Application of Software Reliability Test for User Right Management System,TP311.53
  5. Research on Subsea Pipeline Repair Coupling,TE973
  6. Research and Application on Reliability Technology of Mine Hidrological Monitoring System,TD742.1
  7. Body Sensor Networks Adaptive Communication Protocol,TP212.9
  8. Periodic testing of the storage system reliability model,O213.2
  9. Amendment of Mental Health Evaluation Scale for Chinese Nuclear Power Plant Operators,B849
  10. Degradation of Amorphous Silicon Thin Film Transistors under Gate and Drain Voltage Bias Stress,TN321.5
  11. Study of Static and Dynamic Collaborative Optimization on Container Ship Structure,U674.131
  12. Application of the Coal-powered Anti-grade Trip Protection System,TM732
  13. Improvement and Realization of AODV in Wireless Sensor Networks,TP212.9
  14. Reliability-based Sensitivity Research on Multi-span Rotor System,TH113
  15. High-Reliability Distributed iSCSI Storage System Based on Double-Stage RAID,TP333
  16. The Research and Implementation of Energy-efficient RAID,TP333
  17. Reliability and Security Study of the Digital Substation System,TM732
  18. DURO: A New Online Reconstruction Optimization for Single-disk-failure of RAID-6,TP333
  19. The construction of the thermal power plant enterprise information portal,F426.61
  20. Study on Management for Single Storey Industrial Building Reliability Evaluation,TU311.2
  21. Ground Source Heat Pump System Simulation and Optimization,TU831.3

CLC: > Transportation > Waterway transport > Marine Engineering > Ship Principle > Ship structural mechanics > Ship structural strength
© 2012 www.DissertationTopic.Net  Mobile