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ANALYSIS AND CALCULATIONS

BEIN Engineering is an engineering company that performs various analyses and calculations, in different degrees of detail, for and with customers in several challenging industries. Analyses and calculations are fundamental to the process of developing a product that is safe, practical and at the same time utilizes the potential of its materials in a sensible way. Here at BEIN, we have experience with many different types of analyses and calculations. We have summarized our key services below:

  • Statics and structural strength calculations
  • Marine operations
  • Hydrodynamics and sea motion analysis
  • Electrical and control systems
  • Modelling and simulation

The workflow often begins with simple manual calculations to get an initial assessment of what will work and what will not. The results are often documented in programs such as MathCAD or MS Excel. Next, it is natural to use powerful computer engineering tools for numerical modelling, simulation and analyses that are adapted to the subject area and application.

Statics and structural strength calculations

Here at BEIN, we have solid experience in performing static analyses, as well as strength calculations for concrete and steel structures exposed to challenging environment. Our core skills are summarized below:

  • Strength and fatigue calculations (Finite Element Method – FEM)
  • Beam loading (STAAD, SACS, Sesame, etc.)
  • Pressure vessels (PED, Intergraph Visual Vessel Design)

Normal workflows often start with manual calculations using programs such as ColBeam, MathCAD and MS Excel that are sufficient in the early phase of the project and for less complex problems. In the case of mechanical strength calculations and fatigue analyses, FEM solvers are used for numerical analysis. Such analyses can also be used for simple beam structures. For complex beam structures with a large number of beams and loads, it is logical to use dedicated beam calculation programs such as STAAD, SACS, Sesame or similar.

We also perform calculations for pressure vessels to help our customers design safe pressure tanks. These are calculations that are strictly governed by regulations of the Pressure Equipment Directive – PED. For this kind of work, we use Intergraph Visual Vessel Design software, which enables us to make calculations of small and large pressure vessels, providing full flexibility to make calculations for different materials, pressures and temperatures. Visual Vessel Design can also be used for fatigue analyses. The program processes a solid documentation basis which is critical when it comes to CE certification of equipment.

Marine operations

Here at BEIN, we have ample experience when it comes to marine operations, including both theoretical and practical experience on board ships and from land. Our key skills are summarized below:

  • Operational management: planning and execution
  • Cable laying and commissioning (Orcaflex)
  • Marine lifting operations

We have a great deal of experience in preparing and carrying out umbilical and cable laying activities, as well as lifting operations in a marine environment. Typical preparations for such operations involve static and dynamic analysis of the different phases of the operations, with focus on those structures that are exposed to stress and the environment during these periods. For example, we have developed a method for transferring more complicated designs to Orcaflex to make the workflow easier and clearer. This was a demanding process in the past, but it can now be done with a few simple conversions. Orcaflex was and is a useful analysis tool for pulling pipes, cables and umbilicals over curves and through curved pipes. Lifting operations from boats through the splash zone is another example of typical analyses that can be done in Orcaflex. Good estimates using spreadsheets based on DNV-GL regulations also represent a good conservative approach.

Hydrodynamics

BEIN possess solid knowledge of the oceanspace and are confident to perform analyses and calculations of structures and systems exposed to challenging environments. Our key competence is summarized below:

  • Sea loads and statistics
  • Mooring analyses and low frequency response
  • Hull design and optimization of smaller marine vessels

Our typical workflow consist of hand calculations based on O.M. Faltinsen’ principles and empiric models. More complex statistics are calculated in MS Excel. For particularly demanding problems we use MATLAB or our own routines for numerical analysis. As previously mentioned we utilize Orcaflex for numerical cable analysis. Our typical analytic services are launching in splash zone, slamming, drag/lift, mooring and low frequency response.

BEIN is a constantly evolving company with a passionate focus on expanding our knowledge in interesting fields. Design, calculation and analysis of marine vessels, including leisure craft, sail boats, multihulls, and workboats are within our competence. Get in touch today to let us see what we can achieve together!

Electrical systems

BEIN possess solid knowledge of marine power systems involving moving axes in dynamic environments. We can provide the following:

  • Selectivity and load analysis
  • Cable and short circuit calculations
  • Topology and component optimization
  • Energy optimization and electrification studies

BEIN as a company is passionate of our common future and sustainability. As a result, electrification-solutions has been established as one of our main focus areas. With ever-increasing uncertainty in oil prices, pressure from legislators and climate change, we strongly believe in combining our knowledge in order to provide zero-emission electrical solutions as a solid alternative to fossil combustion engines. The workflow typically consists of identifying dynamic axes in the system and establishing a load profile in order to see the possible impact that electrification may have on energy consumption, purchasing and lifetime costs in your system.

The typical workflow for system design involves the development of a Single Line Diagram (SLD) and load profile in collaboration with the customer. Further axes and their dynamics are identified in combination with the application description. Accordingly, we can assist you in your project by optimizing the system design and topology, exemplary in projects where space or heat exchange are crucial. This includes the election of components to optimize the entire process on the basis of our hand calculations for loads and performance. If necessary, more detailed load analyses and simulations can be performed to further optimize the system.

We perform selectivity and load analyses and documentation, as well as calculations for cables and their connections. We work closely with various switchboard builders, who have solid experience in the design, production and service of marine power electrical systems.

Control (cybernetics)

BEIN possess solid knowledge of the design and implementation of control systems for axes with advanced kinematics. Our key competence is summarized below:

  • System response and optimization
  • Technical specification and identification of control objectives
  • Feasibility

The workflow consists of identifying the system to be controlled, determining in and outputs, control objectives, and developing a Sequential Flowchart (SFC) or State Machine Diagram in close collaboration with the customer. If necessary, the system and its controller can be modelled and simulated as a basis for further analysis, optimization and feasibility assessment.

Modelling and simulation

BEIN possess solid knowledge of structures and systems that are exposed to challenging environments, especially in the ocean space. The basic philosophy of our methodology is described below. The purpose of this methodology is to combine our various fields of knowledge in order to solve your complex problems. Our key competence is summarized below:

  • Model identification and mathematical modelling
  • Simulation and user integration (3D, VR, MATLAB, Simulink)
  • Rapid prototyping (Arduino, etc)

In collaboration with our skilled visualization department, we can model and simulate complex dynamic systems intended for the design and planning phase of your project. We strongly believe that it is crucial in convincing decision makers even before a feasibility analysis has been carried out. Combined with our concept for rapid prototyping, you will possess a solid basis for decision-making, without a significant investment early in the design phase.

The purpose of model identification is to define the mathematical basis to be used in the physical model of the process to be studied, as well as in and out-going commands, as well as impact from noise and distortion to the system. This forms the basis for further modelling and simulation and is carried out in close cooperation with the customer. Moreover, a mathematical model of the system being studied is further used for simulation and analysis.

The simulation of the system is adapted to the customer’s needs, the nature of the application, the project stage, and budget. Our visualization department can typically establish lifelike 3D models using VR integration or animations. It is possible to document system responses based on established transfer functions from mathematical models or play with a 3D printed fast prototype. Contact BEIN today to find the modelling and simulation strategy that will best suit your project.