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NSWCCD Code 823 Future Ship and Submarine Design Tools Branch is pleased to announce the release of the Rapid Ship Design Environment (RSDE) v4.1, along with the Leading Edge Architecture for Prototyping Systems (LEAPS) v5.2.2.  This latest set of software releases provides improved software stability and robustness, as well as increased capability, functionality, and usability in support of Navy ship design studies and acquisition programs.

RSDE v4.1

Major features for RSDE v4.1 include a weights modeling feature set and a design space exploration (DSE) feature set. Read on for more details. See further below on how to gain access to the software release.

Within the weights modeling feature set, the entire weights GUI of RSDE was overhauled. The goal was to increase functionality of the GUI, decrease computational times, and add additional capability. The updated RSDE weights module is now much more intuitive. Weights calculations have been reduced by an order of magnitude and new features, such as improved multi-select & edit, have reduced work from hours to minutes. Users now have the capability to export and import a set of weight equations. Thus, if a user has taken the time to meticulously specify detailed weight calculations using all of RSDE's various weights modeling features, they will now be able to export the weight equations for use in other concept designs; potentially saving days of work. A "Components" tab has been added to the weights GUI. This tab provides information on all of the components in the concept design and a designation of where the component was calculated; RSDE calculated or User specified payload. This new breakout of the components information provides improved clarity and assists users with the weights accounting process. The weights module also allows users to add "Notes" to each SWBS group which will aid in documentation of weights modeling decisions and long term retention of these decisions. 

On the design space exploration (DSE) front, the RSDE team has simplified the process by which a User Defined DSE is set up. In v4.0, all User Defined sampling was set up within one of the RSDE Python options. The RSDE team has developed links to the existing RSDE Design Study modules so that a user can utilize the existing GUI's to pre-populate much more of the DSE settings within the RSDE tool, before heading to the Python interface. This feature enhancement simplifies the process of using RSDE for a User Defined DSE. 


LEAPS v5.2.1

The LEAPS software and product model has been updated to support product modeling and data storage for the RSDE v4.1 and the soon to be release IHDE v10.0 software. Users will want to install both the LEAPS v5.2.2 External Libraries and the LEAPS v5.2.2 executable, before installing RSDE v4.1. As always, be aware that models are not backwards compatible to older versions of LEAPS. 


Software Access & Distribution Control

The RSDE and IHDE software is available through the CREATE-Ships Portal, https://portal.create.hpc.mil/, for DoD and DoD Contractors. The CREATE-Ships Portal can be accessed via two-factor authentication, CAC or Ubikey. All users must sign a CREATE-HPC Software User Agreement on an annual basis. This is done through registration with the CREATE-Ships Portal and requesting access to RSDE and/or IHDE software. If you registered last year, or are unsure of when you last signed a HPCMP User Agreement, please check your status by attempting to log-in to https://portal.create.hpc.mil/. If your User Agreement is out of date you will not be able to log-in. You can then re-apply by clicking the, “No Access? Register Here” link. The Portal will then guide you through re-applying and updating your account. CREATE software users must be 1) U.S. Citizens and 2) acknowledge that CREATE software is export controlled per ITAR regulations and therefore the software and documentation must be handled as such. Those users operating on non-Government owned computer resources will need to work with CREATE HPCMP to arrange a Configuration Control Board (CCB) meeting in addition to signing the Software User Agreement. The purpose of the CCB is to verify sufficient access controls and safeguards are in place and ITAR restrictions are properly followed.   If you do not have a Common Access Card or Ubikey, please contact the RSDE development team at rsde.nswccd.fct@navy.mil to work through the software release process.

Additionally, since ASSET capability has been integrated directly into RSDE users must adhere to NAVSEA Memo "Ser 058 Policy for Distro and Use of ASSET_2016_03_23", which states:

"RSDE (ASSET) software and documentation is authorized for distribution to and use by Department of Defense (DoD) personnel without restriction for projects that benefit the US Government. Distribution to and use by US Coast Guard (USCG) personnel, DoD contractors, and USCG contractors is permitted if they sign and adhere to the enclosed agreement (Enclosure 1). Any other distribution and use is authorized only with expressed written permission of the Naval Sea Systems Command (NAVSEA 05D). All other uses of RSDE (ASSET), regardless of the release version, are in violation of this policy."