Marine and Offshore Technology Center India Blog

  Finite Element Mesh: Mesh design, the discretization of a structure into a number of finite elements, is one of the most critical tasks in finite element modelling and often a difficult one. The following parameters need to be considered in designing the layout of elements: mesh density, mesh transitions and the stiffness ratio of adjacent elements. As a general rule, a finer mesh is required in areas of high stress gradient. It is possible, of course, to use a fine mesh over the whole model. This is undesirable on two counts: economy and the greater potential for manipulation errors. Hence, meshes of variable density are usually used. Care is required in transitioning of mesh density. Abrupt transitioning introduces errors of a numerical nature . Mesh Transition

  General Guidelines for Finite Element Analyst Training & Experience Qualification Criteria: The analyst and checker should have received training in the application of the finite element method. Either of the following is acceptable, in principle, as training:    Training provided by various courses offered by educational establishments and software vendors. These courses are only acceptable if they are application oriented ln-house formal or informal training provided by a supervisor capable of satisfying the requirements of a checker. The content of the training should be at least equivalent to a one week application oriented training program. The training course/s should be documented.   The analyst or checker must be familiar with the design requirements, codes of practice, analysis and design standards relating to ship structures. The checker must have, and the analyst should preferably have, experience with analyses of comparable size and...

  Overall Finite Element Evaluation Methodology Chart:

  SHIP VIBRATION ANALYSIS The purpose of vibration analysis is to estimate the dynamic response of a vessel to different excitation forces and to assist the design engineers in eliminating significant vibration problems. Depending on the ship design stage, vibration analysis approaches vary significantly in their complexity and accuracy. The effort to design against severe vibration in ship structures should start from an early concept design stage. Figure shows typical ship vibration analysis approaches at various ship design stages . For more detail study join our Ship Vibration Analysis course 1) Local Vibration Analysis 2) Global Vibration Analysis ..

  Ansys Marine and Offshore Industry Oriented Course Plan                  Module 1: Introduction of Geometry Modelling ·           Introduction to Spaceclaim ·           Offshore Skid modelling (1D Geometry modelling) ·           Marine structure modelling (2D Geometry modelling) ·           Marine component modelling (3D Geometry modelling) ·           Exercise                Module 2: Introduction of Finite Element Analysis ·           What is Finite Element Analysis? ·           Marine Structural meshing (1D meshing, 2D meshing , 3D meshing) ·     ...