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  2. Hydrostatics [ENS2102]

Faculty of Health, Engineering and Science

School: Engineering

This unit information may be updated and amended immediately prior to semester. To ensure you have the correct outline, please check it again at the beginning of semester.

  • Unit Title

    Hydrostatics

  • Unit Code

    ENS2102

  • Year

    2015

  • Enrolment Period

    1

  • Version

    2

  • Credit Points

    15

  • Full Year Unit

     N

  • Mode of Delivery

    On Campus

Description

This unit will develop students' knowledge of hydrostatics fundamentals and concepts of statical stability and trim of intact and damaged vessels. The practical implications and applications of hydrostatic concepts are introduced to enable students to generate all relevant stability data required for both design and development, and operational purposes. A working knowledge of stability regulations will also be introduced and developed.

Prerequisite Rule

Students must pass 1 units from ENS1101

Learning Outcomes

On completion of this unit students should be able to:

  1. Calculate and assess a vessels damage stability response.
  2. Calculate hydrostatic data for any hull form, and predict the influence of hull form parameters on a vessels stability characteristics.
  3. Conduct an inclining experiment in accordance with industry best practice.
  4. Derive and explain the principles of hydrostatic parameters.
  5. Generate a trim and stability booklet compliant with relevant standards.
  6. Interpret a vessels response to any loading condition from lever and moment curves.

Unit Content

  1. Damage Stability: Subdivision, subdivision terminologies & definitions, bilging effects on stability and trim, IMO subdivision requirements for passenger vessels, International Maritime Organization (IMO) subdivision requirements for dry-cargo vessels.
  2. Elementary Principles of Transverse Intact Stability: Equilibrium, metacentric height and transverse metacentre, curves of statical stability, centre of buoyancy, the wall-sided expression, KN and cross curves of stability.
  3. Elementary Principles of Trim: LCF, TPC, longitudinal metacentre, trimming moment, MCTC, longitudinal transfer of onboard mass, change in trim due to addition/removal of small masses, change in drafts due to change in trim, determination of drafts after addition/removal of large masses, change in trim due to change in density, FWA, draft marks.
  4. Geometry of Surface Vessels: The lines drawing, hull dimensions, reference datum, dimensions and coefficients of form, displacement and weight relationships, Bonjean curves.
  5. Heeling Moments and Angles and Free Surface Effects: Heeling forces, heeling moment curves, angle of list, angle of loll, heeling due to wind forces, free surface effect and moments, heeling effects due to high-speed turning.
  6. Mass Addition, Removal and Transfer: Centre of gravity, shift in centre of gravity due to addition (or removal) of mass, shift in centre of gravity due to movement of on-board mass, effect of a suspended mass.
  7. Tabular Methods of Integration: Simpsons Rules, intermediate ordinates, application of the parallel axis theorem, application of Simpsons Rules to volumes, centroids and moments of inertia.
  8. The Inclining Experiment: The principle, guidance for conducting an inclining test, inclining test procedure.
  9. The Intact Stability Booklet: Contents and purpose, required information, basic trim and stability data, stability criteria and instructional information, standard loading conditions.
  10. The Partially-Afloat Condition: The dry-docking case, minimum GM0 and maximum trim for dry-docking, grounding of one point of the keel.

Additional Learning Experience Information

Lectures, tutorials and laboratories.

Assessment

GS1 GRADING SCHEMA 1 Used for standard coursework units

Students please note: The marks and grades received by students on assessments may be subject to further moderation. All marks and grades are to be considered provisional until endorsed by the relevant Board of Examiners.

ON CAMPUS
TypeDescriptionValue
TestIn-semester tests40%
Laboratory WorkInclining experiment10%
ExaminationEnd of semester examination50%

Text References

  • Clark, I.C. (2002). The management of merchant ship stability, trim & strength. London: The Nautical Institute.
  • Biran, A. (2003). Ship hydrostatics & stability. Oxford: Butterworth-Heinemann.
  • International Maritime Organization. (1995). Code on intact stability for all types of ships covered by IMO instruments, resolution A.749 (18). London: International Maritime Organization.
  • International Maritime Organization. (2004). SOLAS consolidated edition. London: International Maritime Organization.
  • Lewis, E.V. (Ed), (1988). Principles of naval architecture (Vol. 1), Jersey City: S.N.A.M.E.

Disability Standards for Education (Commonwealth 2005)

For the purposes of considering a request for Reasonable Adjustments under the Disability Standards for Education (Commonwealth 2005), inherent requirements for this subject are articulated in the Unit Description, Learning Outcomes and Assessment Requirements of this entry. The University is dedicated to provide support to those with special requirements. Further details on the support for students with disabilities or medical conditions can be found at the Access and Inclusion website.

Academic Misconduct

Edith Cowan University has firm rules governing academic misconduct and there are substantial penalties that can be applied to students who are found in breach of these rules. Academic misconduct includes, but is not limited to:

  • plagiarism;
  • unauthorised collaboration;
  • cheating in examinations;
  • theft of other students' work;

Additionally, any material submitted for assessment purposes must be work that has not been submitted previously, by any person, for any other unit at ECU or elsewhere.

The ECU rules and policies governing all academic activities, including misconduct, can be accessed through the ECU website.

ENS2102|2|1

Faculty of Health, Engineering and Science

School: Engineering

This unit information may be updated and amended immediately prior to semester. To ensure you have the correct outline, please check it again at the beginning of semester.

  • Unit Title

    Hydrostatics

  • Unit Code

    ENS2102

  • Year

    2015

  • Enrolment Period

    2

  • Version

    2

  • Credit Points

    15

  • Full Year Unit

     N

  • Mode of Delivery

    On Campus

Description

This unit will develop students' knowledge of hydrostatics fundamentals and concepts of statical stability and trim of intact and damaged vessels. The practical implications and applications of hydrostatic concepts are introduced to enable students to generate all relevant stability data required for both design and development, and operational purposes. A working knowledge of stability regulations will also be introduced and developed.

Prerequisite Rule

Students must pass 1 units from ENS1101

Learning Outcomes

On completion of this unit students should be able to:

  1. Calculate and assess a vessels damage stability response.
  2. Calculate hydrostatic data for any hull form, and predict the influence of hull form parameters on a vessels stability characteristics.
  3. Conduct an inclining experiment in accordance with industry best practice.
  4. Derive and explain the principles of hydrostatic parameters.
  5. Generate a trim and stability booklet compliant with relevant standards.
  6. Interpret a vessels response to any loading condition from lever and moment curves.

Unit Content

  1. Damage Stability: Subdivision, subdivision terminologies & definitions, bilging effects on stability and trim, IMO subdivision requirements for passenger vessels, International Maritime Organization (IMO) subdivision requirements for dry-cargo vessels.
  2. Elementary Principles of Transverse Intact Stability: Equilibrium, metacentric height and transverse metacentre, curves of statical stability, centre of buoyancy, the wall-sided expression, KN and cross curves of stability.
  3. Elementary Principles of Trim: LCF, TPC, longitudinal metacentre, trimming moment, MCTC, longitudinal transfer of onboard mass, change in trim due to addition/removal of small masses, change in drafts due to change in trim, determination of drafts after addition/removal of large masses, change in trim due to change in density, FWA, draft marks.
  4. Geometry of Surface Vessels: The lines drawing, hull dimensions, reference datum, dimensions and coefficients of form, displacement and weight relationships, Bonjean curves.
  5. Heeling Moments and Angles and Free Surface Effects: Heeling forces, heeling moment curves, angle of list, angle of loll, heeling due to wind forces, free surface effect and moments, heeling effects due to high-speed turning.
  6. Mass Addition, Removal and Transfer: Centre of gravity, shift in centre of gravity due to addition (or removal) of mass, shift in centre of gravity due to movement of on-board mass, effect of a suspended mass.
  7. Tabular Methods of Integration: Simpsons Rules, intermediate ordinates, application of the parallel axis theorem, application of Simpsons Rules to volumes, centroids and moments of inertia.
  8. The Inclining Experiment: The principle, guidance for conducting an inclining test, inclining test procedure.
  9. The Intact Stability Booklet: Contents and purpose, required information, basic trim and stability data, stability criteria and instructional information, standard loading conditions.
  10. The Partially-Afloat Condition: The dry-docking case, minimum GM0 and maximum trim for dry-docking, grounding of one point of the keel.

Additional Learning Experience Information

Lectures, tutorials and laboratories.

Assessment

GS1 GRADING SCHEMA 1 Used for standard coursework units

Students please note: The marks and grades received by students on assessments may be subject to further moderation. All marks and grades are to be considered provisional until endorsed by the relevant Board of Examiners.

ON CAMPUS
TypeDescriptionValue
TestIn-semester tests40%
Laboratory WorkInclining experiment10%
ExaminationEnd of semester examination50%

Text References

  • Clark, I.C. (2002). The management of merchant ship stability, trim & strength. London: The Nautical Institute.
  • Biran, A. (2003). Ship hydrostatics & stability. Oxford: Butterworth-Heinemann.
  • International Maritime Organization. (1995). Code on intact stability for all types of ships covered by IMO instruments, resolution A.749 (18). London: International Maritime Organization.
  • International Maritime Organization. (2004). SOLAS consolidated edition. London: International Maritime Organization.
  • Lewis, E.V. (Ed), (1988). Principles of naval architecture (Vol. 1), Jersey City: S.N.A.M.E.

Disability Standards for Education (Commonwealth 2005)

For the purposes of considering a request for Reasonable Adjustments under the Disability Standards for Education (Commonwealth 2005), inherent requirements for this subject are articulated in the Unit Description, Learning Outcomes and Assessment Requirements of this entry. The University is dedicated to provide support to those with special requirements. Further details on the support for students with disabilities or medical conditions can be found at the Access and Inclusion website.

Academic Misconduct

Edith Cowan University has firm rules governing academic misconduct and there are substantial penalties that can be applied to students who are found in breach of these rules. Academic misconduct includes, but is not limited to:

  • plagiarism;
  • unauthorised collaboration;
  • cheating in examinations;
  • theft of other students' work;

Additionally, any material submitted for assessment purposes must be work that has not been submitted previously, by any person, for any other unit at ECU or elsewhere.

The ECU rules and policies governing all academic activities, including misconduct, can be accessed through the ECU website.

ENS2102|2|2