Oil, Gas, and Offshore Industry | NEi Engineering Analysis Software

NEi Nastran provides a wide range of proven solutions for offshore applications that enable our customers to evaluate and optimize the performance and reliability of their designs and production processes. Benefits include: shorter project development cycles, reduced development costs, fewer prototypes, managed and reduced risk, improved quality, checks for design flaws and problem areas, and tools for exploring alternative designs that promote innovation.

Technical Strengths. Technical strengths for offshore projects include comprehensive nonlinear analysis, robust 3D surface contact, support for special materials like concrete, composites, elastomers and hyperelastic, suite of modal analysis tools, and 64-bit large model capability. Of particular note is NEi Software's ability to incorporate new features, enhancements and tools in NEi Nastran for your application.

Responsive Support. Our customer testimonials are the best reference we can offer on the response you can expect to your emails and telephone inquiries from our experienced application engineers. We understand your working environment and put in place the people to insure you can rely on your software as a valuable investment.

Business Advantages. In addition to the technical strengths and support, NEi Software provides many cost saving advantages in deployment and use. Examples include, productivity features like Automated Surface Contact Generation (ASCG™), the NEi Token System which gives the least cost for a full portfolio of simulation software in large organizations, no charges for multiple CPU use in NEi Nastran’s 64-bit version, and the ability to batch jobs for overnight and weekend runs using the NEi Editor feature.

NEi Nastran can provide analysis and simulation solutions for:

•	Offshore platforms, topside structures, floating units, subsea structures and underwater vessel modeling
•	Seabed pipelines and manifolds, stability, interaction with soil, upheaval buckling
•	Analysis of high strain packers used in high pressure, high temperature environments for sealing off production tubing and casing, preventing up and down movement of tubing, and providing separation of multiple producing zones
•	Comprehensive dynamic response with nonlinear force variation studies of centralizers used to support tools as they passed through oil wells
•	Gas processing equipment
•	Hydraulic Workover units (HWO), guy line wind tower, helideck, well deck, caisson structures, offloading platforms
•	Self elevating workover platform vessel, jackup boats
•	Mooring chain and systems operating with fairleads, bending shoes, stoppers, trumpets and connectors
•	Flexible Joints (FJs) and steel catenary risers (SCRs), high pressure high temperature (HP/HT) environments, cycling, fatigue life
•	Long term management and structural integrity of floating platforms, hull fatigue, topside structures, anchoring
•	Thermo-mechanical simulation of structures under different operating conditions
•	Simulating the effects of underwater explosions on ships, offshore and subsea structures (DDAM and USA support)
•	Structural analysis of subsea vessels to predict buckling modes
•	Fatigue analysis survey and life prediction
•	Linear and nonlinear static and dynamic analysis of entire structures, sub-assemblies, or individual components

NEi Nastran product suite key technical capabilities for offshore applications:
•	Comprehensive interactive tools necessary for model creation, analysis monitoring, and results evaluation including NEi Software’s industry unique Editor which provides real time information on solution progress and alteration control
•	Specialized industry-proven element technologies including hybrid quad and hex elements and dissimilar mesh interpolation elements
•	Specialized solution sequences including Design Dynamic Analysis Method (DDAM), integration with Anteon’s Underwater Shock Analysis (USA) program, and compatibility with MAESTRO from Proteus Engineering
•	High performance processing including advanced parallel PCG iterative, sparse direct, and block Lanczos solvers which allow solutions to large-scale models over 10 million degrees of freedom on inexpensive 32-bit Windows workstations as well as high end 64-bit Linux clusters
•	Special modal filtering and database restart tools for performing DDAM and dynamic response solutions increase productivity by allowing a modal database to be altered and reused with rerunning an eigenvalue extraction analysis
•	Robust contact capability using a 3D surface contact method which easily handles dissimilar meshes between components including frictional effects
•	Basic through advanced material models including temperature dependent materials, non-linear elasticity and plasticity effects, creep, and thermo-elasticity
•	Substructuring and Model Reduction allows the creation and reuse of substructures to improve the efficiency of large analyses and provides a convenient method to transfer model data to subcontractors
•	Submodeling allows in-depth evaluation of particular regions
•	Load and Boundary Condition Interpolation allows mapping of thermal and CFD output from specialized heat transfer and fluid dynamic models to the structural model for load and boundary condition definition
•	Inertia relief capability allows the quasi-static simulation of forces acting on an unconstrained structure such as aircraft in flight or a submerged submarine
•	Multiple sub case capability provides a highly efficient technique to evaluate the response of structures to many different load cases and boundary conditions
•	Advanced solution sequences such as linear and nonlinear static, transient dynamic, steady state dynamic, frequency extraction, heat transfer, and other analysis types, provide a choice of appropriate analysis types for different types of simulations
•	Integration with specialized fatigue applications, such as Winlife which is available as an add-on to the NEi Nastran product suite and also fe-safe, nCode, Falancs and FE-Fatigue