Sökning: "ship structures"
Visar resultat 1 - 5 av 29 avhandlingar innehållade orden ship structures.
1. Ultimate and Residual Strength Assessment of Ship Structures
Sammanfattning : The prevention of ship structural failures and reduction of accident consequences contribute to increased safety at sea and reduced environmental impact. A need for reliable and efficient ship designs facilitates knowledge accumulation and the development of tools for the assessment of hull structural responses to acting loads. LÄS MER
2. Random Fatigue Analysis of Container Ship Structures
Sammanfattning : .... LÄS MER
3. Fatigue Assessment and Extreme Response Prediction of Ship Structures
Sammanfattning : In this thesis, a simplified narrow-band approximation model is proposed to estimate fatigue damage of ship structures, and an efficient method for extreme response predictions is also developed using upcrossing spectrums of ship responses. The proposed fatigue model includes two main parameters, significant stress range hs and zero upcrossing frequency fz. LÄS MER
4. Fatigue Assessment of Container Ships – a Contribution to Direct Calculation Procedures
Sammanfattning : Within the field of marine structural engineering, the introduction of new materials and material classes, the development of production techniques and new design, and new requirements imposed by authorities are examples which justify a need for continuous revisit and update of fatigue assessment methodologies of marine structures. This thesis contributes to the development and improvement of fatigue assessment methodology for ship structures. LÄS MER
5. Den riskfyllda gemenskapen : Att hantera säkerhet på ett passagerarfartyg
Sammanfattning : The purpose of this study was to examine how cultural processes and organisational conditions influence safety management in complex sociotechnical contexts. The object of investigation was a passenger ship where interviews and observations had been conducted for one year. LÄS MER