SOLICITATION NOTICE
D -- CUSTOM SOFTWARE TO SIMULATE DYNAMICS OF A DAMAGED GEAR OR BEARING
- Notice Date
- 12/8/2008
- Notice Type
- Presolicitation
- NAICS
- 541330
— Engineering Services
- Contracting Office
- NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135
- ZIP Code
- 44135
- Solicitation Number
- NNC09275871Q
- Response Due
- 12/19/2008
- Archive Date
- 12/8/2009
- Point of Contact
- Joan V Haug, Purchasing Agent, Phone 216-433-3503, Fax 216-433-2480, />
- E-Mail Address
-
joan.v.haug@nasa.gov<br
- Small Business Set-Aside
- N/A
- Description
- NASA/GRC seeks to purchase a computer simulation tool (software) module or modulesthat can be executed on a personal computing (PC) platform. The intent of the softwaretool (the capability that will be enabled) is to simulate the effect of single surfacepits on the dynamics of gears and bearings using a two-dimensional finite-element basedapproach. The software package (executable code, user manuals, and example model setsdefining example-model inputs) shall have the following research capabilities andrequirements.1.The vendor shall develop the ability to describe a surface defect as aperturbation to a finite element model of a perfect (undamaged) gear tooth, rollingelement, or bearing race. The analytical tool needs to be able to specify one or morepits, on individual teeth (or rollers). The profile of the surface defect must bedescribed in sufficient detail such that the providers contact solver will properlyemulate the surface profile for purposes of computing the contact force directions andseparations. In other words, the influence of the surface defect on the computed contactvector force magnitude and direction must be calculated during the dynamic analysis. 2.The software module or modules for gear analysis models having a surface defectsshall incorporate a method to complete calculations until steady state is reached, thenstudy the frequency spectrum of reaction forces. 3.The software module or modules for bearing analysis must be capable of modelingcylindrical rolling element bearing with surface defects, with deformable (finiteelement) contact models incorporating the effect of contact between the rollers andraces. The races small be modeled as deformable. The inertial properties of the cageshould be included. The cage may be modeled as a rigid element. 4.The user shall be able to specify surface defects on individual teeth/rollers orspecific points on the bearing raceway. The user shall be able to specify differentdefects on individual teeth, raceway elements, or rollers. The underlying finite elementmodel must not be modified but the contact solver must model the defect geometry and theresulting change in the contact force vector. The defect specification should be capableof using data imported from a profilometer inspection of a real part. The user shallalso have the option to define a defect using parameters via a Graphical User Interface(GUI).5.The developer shall conduct example analyses to study the effects of surfacedefects on the races or rollers on the frequency spectrum of the bearing reaction forces.6.The model definition for the gear must be 100% compatible with the gear softwareprogram CALYX-ExtPair2D from Advanced Numerical Solution. The compatibilityrequirement will allow NASA and Army researchers to make use of the extensive database ofmodels already available and built up by the research team.7.The developer shall conduct example cases and document the contact solverresolutions required such as to provide guidance for running analysis cases withappropriate contact solver solutions.8.The user shall be able to save the analysis results in a file that can later bepost-processed using the including contact forces and contact pressure distributions,stress at any point in the FEA model as a function of time, stress as a function ofposition in the root-fillet region of the gear, and finite element model displacements. The post-processing capabilities and execution shall be presented to the user via aGraphical User Interface. The post-processed data shall be presented as X-Y plots orhistograms as appropriate in a manner that can be copied and pasted in the MicrosoftWindows environment (for example a graph shall be capable of being copied and pastedinto a Microsoft Word document) via a few keyboard keystrokes or mouse device clicks.9.The user shall be able to read the analysis results file and conductpost-processing of the results via the IGlass software tool.This tool allows tocreate color coded plots of finite element meshes, resultant stresses, and displacementdistributions.The results in IGlass are depicted on the geometry representations ofthe gear and bearing models. Final deliverablesThe final deliverables of the purchase will be:1.Executable software code and license that will permit the software to operate ona Personal Computer (PC),2.At least one example gear model, including defects shall be provided inelectronic format3.At least one example bearing model, including defects, shall be provided inelectronic format.4.The vendor shall provide a report that will serve as a user manual. Also thereport shall document example analysis cases results that will demonstrate that thesoftware meets the requirements of the SOW. NASA/GRC intends to purchase the items from Advanced Nunerical Solutions, LLC., 3554 MarkTwain Ct., Hilliard OH 43026-5729. The GRC Mechanical Components Branch has access to the CALYX and IGlass software packageexecutables (permanent license) as a result of a previous purchase from this vendor. TheCALYX software package is currently not capable of analyzing a pitted gear or bearing.Arequirement of the SOW includes compatibilities with the CALYX and IGlass softwaremodules. The software specification to allow such compatibility is the exclusiveproprietary rights of the Advanced Numerical Solutions Company. The CALYX softwarepackage source code is required to accomplish the task as defined, and only thiscontractor has access and control of the source code. Although one can imaginedeveloping similar tools to those defined in the SOW for other general purpose finiteelement analysis tools, the cost for purchasing such a license and the training of GRCpersonnel to operate another software package would greatly exceed the expected cost ofthis task. The Government intends to acquire a commercial item using FAR Part 12 and the SimplifiedAcquisition Procedures set forth in FAR Part 13. The Sole Source is under the authority of FAR reference 13.106-1(b)1.Interested organizations may submit their capabilities and qualifications to perform theeffort in writing to the identified point of contact not later than 4:30 p.m. local timeon December 17, 2008. Such capabilities/qualifications will be evaluated solely for thepurpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and opencompetition basis, based upon responses to this notice, is solely within the discretionof the government.Oral communications are not acceptable in response to this notice.All responsible sources may submit an offer which shall be considered by the agency.An Ombudsman has been appointed. See NASA Specific Note "B".Any referenced notes may be viewed at the following URLs linked below.
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