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Engineering & Analysis


Contact DTB with your engineering & analysis requirements. Our services can provide a decisive advantage to your process.

The engineering services staff at Dayton T. Brown works closely with our customers to ensure that all aspects of the test facility design and ultimate operation completely satisfies customer requirements.

Engineering Services & Analysis

Complete test facilities, a large, experienced staff of engineers and technicians available for your enterprise. Dayton T. Brown’s resources are at your disposal for product and process testing, product improvement, design analysis, reverse engineering projects and more. Our clients regularly realize the value of our ‘on-demand’ assets to their bottom line.

Test Facilities & Custom Fixtures

The testing of customer products often has unique requirements that necessitate the design and building of specialized test facilities.

These facilities are often complex in that they simulate the environment and stress the product while monitoring and recording critical product operating parameters.

In Design engineering the following are some of the equipment used at DTB:

  • ANSYS Finite Element Analysis Software
  • UGS I-DEAS (Solid Modeling)
  • Autodesk Inventor (Solid Modeling)
  • Autodesk AutoCad
  • CoCreate OneSpace Drafting
  • IGES, STEP, CATIA, DWG, DXF, PDF and C4 Software Translators
  • Autodesk Inventor (Version 11) 3D Modeling and 2D CAD Software
  • SDRC I-Deas (Version 12) 3D Modeling and 2D CAD Software
  • Autodesk AutoCAD (Version 2006) 2D CAD Software
  • Onespace Designer Drafting (Version 2005) 2D CAD Software
  • ANSYS (Version 10) Finite Element Analysis Software
  • SoMat Lifest Fatigue Analysis Software
  • AFGROW Damage Tolerance Analysis Software
  • Kaleidagraph (Ver. 3.09) Scientific Graphing, Curve Fitting, Data Analysis Software
  • Visio Technical (Ver. 5.0) Engineering Illustrations and Flow Charting Software
  • Hewlett Packard “E” Size Color Plotter

 

Failure & Fatigue

EA-18-GrowlerFatigue Life Prediction – Using strain life methods, stress life or load life methods DTB can analyze your product, develop a loading spectrum and make fatigue life predictions for system. The strain information can come from test data or from finite element modeling predictions. DTB can support field strain gage and load measurement to provide data for these analyses.

DTB can develop detailed test plans/procedures to ensure that the potential failure modes have been eliminated.

Failure Mode Effects Analysis (FMEA) – DTB can perform a Failure Modes and Effects Analysis during the design development process to identify potential failure modes, determine their effect, and determine what steps have to be taken to mitigate the failures. By performing a FMEA early in the design development cycle, DTB can design quality and reliability into your product/system to minimize potential problems.

The Design and Engineering Dept has performed Kinematic analysis on both military aircraft flight controls and mechanisms as well as commercial industrial machinery.

DTB’s kinematic engineering capabilities range from motion studies to the analysis of dynamic forces, velocities, accelerations and the kinetic energy absorption of mechanical systems.

FEA – Finite Element Analysis

DTB has extensive experience in finite element modeling of all types of structures. Static, dynamic, modal, random vibration (PSD) analyses are all available. Often these analyses are used to compare to strain gage measurements during structural tests. DTB use your solid models to create the FEM or can create the FEM from .dwg files or from paper drawings.

DTB has experience with variable contact, non linear materials and non linear analytical ultimate strength modeling. The following picture illustrates an armament rack being analyzed for ultimate strength. These predictions were then confirmed with a static test using a strain gages and calibrated test article.

Thermal Analysis

DTB can support your thermal analysis needs through thermal finite element modeling. The analysis can be done concurrently with structural modeling and analysis. The attached figure shows the thermal analysis of battery pack.

Computational Fluid Dynamics (CFD)

CFD analysis is a growing in accessibility to engineering as desktop computational power increases. DTB has 64 bit PCs to power through these intensive analyses. CFD can be used for the following:

  • Calculate the gas pressure and temperature distributions in an engine exhaust manifold
  • Study the thermal stratification and breakup in piping systems
  • Conduct natural convection analyses to evaluate the thermal performance of chips in electronic enclosures
  • Conducting heat exchanger studies involving different fluids separated by solid regions
  • Laminar or turbulent flow
  • Thermal or adiabatic analyses
  • Free surface
  • Compressible or incompressible flow

 

Geometric Dimensioning and Tolerancing (GD&T)

Our design and technical staff has been trained in the latest version of Geometric Dimensioning and Tolerancing per ASME Y14.5.

We can help you determine product tolerance requirements and confirm the results in our dimensional inspection laboratory.

We are experienced in all concepts including: form, true position and profile.