Module Description

Module: Arctic Technology

Courses:

TitleTypeHrs/WeekPeriod
Ice EngineeringLecture2Winter Semester
Ice EngineeringRecitation Section (small)1Winter Semester
Ship structural design for arctic conditionsProject-/problem-based Learning2Winter Semester

Module Responsibility:

Prof. Sören Ehlers

Admission Requirements:

None

Recommended Previous Knowledge:

none

Educational Objectives:

Professional Competence

Theoretical Knowledge

The challenges and requirements due to ice can be explained. Ice loads can be explained and ice strengthening can be understood.

Capabilities

The challenges and requirements due to ice can be assessed and the accuracy of these assessment can be evaluated. Calculation models to assess ice loads can be used and a structure can be designed accordingly.

Personal Competence

Social Competence

Students are capable to present their structural design and discuss their decisions constructively in a group. 

Autonomy

Independent and individual assignment tasks can be carried out and presented whereby the capabilities to both, present and defend, the skills and findings will be achieved.

ECTS-Credit Points Module:

6 ECTS

Examination:

Oral exam

Workload in Hours:

Independent Study Time: 110, Study Time in Lecture: 70


Course: Ice Engineering

Lecturer:

Walter Kuehnlein

Language:

German & English

Period:

Winter Semester

Content:

  1. Ice, Ice Properties, Ice Failure Modes and Challenges and Requirements due to Ice
    • Introduction, what is/means ice engineering
    • Description of different kinds of ice, main ice properties and different ice failure modes
    • Why is ice so different compared to open water
    • Presentation of design challenges and requirements for structures and systems in ice covered waters
  2. Ice Load Determination and Ice Model Testing
    • Overview of different empirical equations for simple determination of ice loads
    • Discussion and interpretation of the different equations and results
    • Introduction to ice model tests
    • What are the requirements for ice model tests, what parameters have to be scaled
    • What can be simulated and how to use the results of such ice model tests
  3. Computational Modelling of Ice-Structure Interaction Processes
    • Dynamic fracture and continuum mechanics for modelling ice-structure interaction processes
    • Alternative numerical crack propagation modelling methods. Examples of cohesive element models for real life structures.
    • Discussion of contribution of ice properties, hydrodynamics and rubble.
  4. Ice Design Philosophies and Perspectives
    • What has to be considered when designing structures or systems for ice covered waters
    • What are the main differences compared to open water design
    • Ice Management
    • What are the main ice design philosophies and why is an integrated concept so important for ice

Learning Objectives

The course will provide an introduction into ice engineering. Different kinds of ice and their different failure modes including numerical methods for ice load simulations are presented. Main design issues including design philosophies for structures and systems for ice covered waters are introduced. The course shall enable the attendees to understand the fundamental challenges due to ice covered waters and help them to understand ice engineering reports and presentations.

Literature:

  • Proceedings OMAE
  • Proceedings POAC
  • Proceedings ATC

Course: Ship structural design for arctic conditions (Project-/problem-based Learning)

Lecturer:

Sören Ehlers

Language:

German & English

Period:

Winter Semester

Content:

The structural design under ice loads will be carried out for an individual case

Literature:

FSICR, IACS PC and assorted publications