80JSC020R0020 - Statement of Work.pdf

Statement of Work (SOW)

Subject: Engineering Support Contract for Testing & Loads Simulation, Modeling, and Analysis Methods

Title: Engineering Support for Six-degree-of-freedom Dynamic Test System (SDTS) Facility Development, Simulation / Modeling, & Testing, Couple Loads and Vibro-acoustics Linear / Non-linear Modeling, Analysis, & Simulation, Day of Launch (DOL) Vehicle Load Indicator (VLI) Simulation / Modeling Development & Analysis Methods, and Advanced Docking Systems (ADS) Simulation / Modeling & Testing

Period of Performance:

January 1, 2020 – December 31, 2025.

Background:

Simulation & modeling, analysis, and integrated dynamics testing capabilities are a vital task of multiple programs for NASA. An important aspect of this support is to develop and maintain an integrated analysis & testing framework for docking dynamics system performance validation. Performance of docking systems will be tested in a six-degree-of-freedom (6DoF) testbed to provide a real world foundation for the analysis tools. Key component for maintaining this core capability includes 1) a certified SDTS facility, including the facility component and system models, and 2) an integrated model and simulation capability able to represent the overall system performance. This effort includes a new development of an upgraded electro-mechanical SDTS (eSDTS) based on the existing infrastructure of the current hydraulic based SDTS.

In addition to the ADS simulation and modeling support, this capability is also extended to other programs that require a diverse and broad base knowledge of developing and maintaining analysis and simulation expertise. The Space Launch System (SLS), Multi-Purpose Crew Vehicle (MPVC), and Gateway Programs require loads simulation, modeling, and analysis methods to perform in-line and independent analysis/assessments to ensure these high-risks projects ensure safety and mission success.

Statement of Work:

The contractor shall support SDTS efforts with the development, integration, and maintenance of required hardware & software changes need to meet and maintain facility certification and/or classifications. In addition to this, the contractor shall provide as-needed support for dynamic analysis and testing for user provided hardware within the SDTS facility. Activities shall include facility work for obtaining classification to STE/D (Special Test Equipment/Devices) which is required to connect “flight-like” hardware to test support equipment, this includes the planning, development, and implementation of the SDTS facility user’s guide and testing documentation. Support will include any integrated docking performance analysis capability with as-needed modeling and simulations, dynamic analysis, and testing support of developer docking systems. In additional to this, the contractor shall support any required technical interchange meetings required to support any NASA Engineering and Safety Center’s (NESC) assessments required to facilitate abort loads analysis including mission support. All integrated modeling, analysis, and testing products shall be transitioned to NASA as the primary integrator with the contractor providing key consultation and subject matter expertise. Specific requirements for each task are listed in the section below.

Additional Requirements:

The contractor shall follow NASA and JSC safety and health requirements per its safety and health plan, submitted and approved within 30 days following contract award in accordance with NFS 1852.223-72 Safety and Health (Short Form).

Requirements:

The contractor shall provide the necessary manpower and expertise to perform the following tasks in coordination with the appropriate team leads and the NASA technical representatives. Support for these tasks are outlined below:

SDTS facility support includes but not limited to:

1. Upgrade and/or maintain facility hardware and software to support test of any IDSS (International Docking System Standard) or GDSS (Gateway Docking System Standard) compatible mechanism with focus on light-weight vehicle concept of operations (docking and/or soft attachment).

2. Perform upgrades to the SDTS Load Measurement System (LMS) to support required development work, including implementation of characterization tests.

3. Update and/or maintain the SDTS 2-body host simulation, SimHost, model and simulation packages including any documentation.

4. Update and/or maintain the verified SDTS Facility Models and Simulation (SimSDTS) packages including facility component stiffness models, verification, and documentation.

5. Develop and assess SDTS hardware stack stiffness due to integration of user-provided hardware, including any future SDTS facility structure enhancements or upgrades, including updates to facility component stiffness models.

6. Provide support for integration of verified SDTS Facility Models and Simulation (SimSDTS) components into non-Trick Host Simulation Environments (e.g., Adams, MatLab/Simulink, etc.)

7. Support development of enhanced fidelity SDTS motion platform models as needed to better define facility performance and limitations.

8. Support user-provided hardware testing support within the SDTS including Test Readiness Review (TRR) documentation and test reports.

9. Assess control system logic and controller performance as related to continued enhancements of the SDTS facility, as well as, for user-provided docking systems.

ADS support includes but not limited to:

1. Provide support for integrated dynamic analysis including modeling and simulation for user-provided hardware.

2. Provide support to develop/maintain any verified User System Model and Simulation including the Integrated Facility Model and Simulation.

3. Provide as-needed support to develop detailed mechanism models of either component level sub-assemblies and/or full end-to-end docking / attachment system mechanism models.

4. Develop and/or maintain as-needed Monte-Carlo and performance sensitivity analysis toolkits.

5. Provide as-needed support to perform Monte-Carlo docking system performance analysis based on user-provided vehicle ConOps, Initial Contact Conditions (ICC), mass properties, and mechanism specific dynamic characteristics.

6. Transition primary roles and responsibilities for maintenance and sustainability of models, simulations, and auxiliary tools to the Loads and Structural Dynamics Branch (ES6) of the Structural Engineering Division (ES) at NASA-JSC for long-term utilization.

Couple loads and vibro-acoustics linear/non-linear modeling, analysis, & simulation support includes but not limited to:

1. Develop loads and vibro-acoustics linear/non-linear models

2. Perform linear/non-linear couple loads analysis and simulations

3. Perform non-linear contact multi body dynamics

4. Perform complex mechanical systems motion and dynamics

5. Perform verification of mechanical system requirements through test and analysis

6. Perform simulation-based analysis using Monte Carlo methods

7. Perform data pre/post-processing, reduction, and visualization

Day of Launch (DOL) Vehicle Load Indicator (VLI) support includes but not limited to:

In order to develop, certify, perform Independent Verification & Validation (IVV), and provide a Day of Launch Vehicle Load Indicator simulation tool the following requirements must be meet:

• Develop and maintain DOL VLI pre/post processor tools

• Generate DOL VLI knockdowns & load increments

• Perform independent verification and validation of the SLS VLI knockdowns/load increments and simulation tool results

• Develop and maintain the official requirements for the tool

• Complete a formal software classification assessment for the tool o Per ESD 10029-01, the tool is expected to be targeted for Class C/Safety-Critical.

• Utilize software development processes that are consistent with NPR 7150.2B and either JPR

7150.2B when available otherwise JPR 7150.2 can be used at the appropriate software classification and criticality

• Tool will be developed for Exploration Mission use starting with EM-1, and will meet user requirements including, but not limited to operational needs, runtime performance and platform/operating system considerations.

• Tool shall be developed to run on a Red Hat Linux platform o Security considerations: in the event that the tool will rely on any Commercial Off The Shelf (COTS), Government Off The Shelf (GOTS), or Free/Open Source Software (FOSS), will consult with CM4/CD during the development phase to have the dependencies approved by Mission Control Center (MCC) IT security personnel

• Prior to delivery, the tool will be certify for operational use via a Software Acceptance Review (SAR) meeting o Tool delivery will include: source code, executable files, test case(s)/test data suite for tool verification, documentation, users guide, and a licensing agreement o Documentation will include build and installation instructions, data interface definitions for each tool interface (including all input and output file formats), and as-built model specifications in compliance with NASA STD-7009A, section 4.3

• Release documentation for each delivery will include a list of dependencies (e.g., COTS, GOTS, FOSS) and release notes describing changes since the previous version o Provide troubleshooting support via a dedicated point-of-contact for CM4/CD questions or issues identified during tool installation onto the Mission Control Center (MCC) by

CM4/CD

o Provide training to ES6 & CM4/CD users on tool functionality, user interface, run controls, and data interfaces o Provide mission support in the MCC Mission Engineering Room (MER)

• Perform integrated DOL I-Load Update (DOLILU) end-to-end certification test o Up to 3 integrated DOLILU training sims

• Provide mission checkout milestones o Countdown Sequence Test (CST) o PAD PSET (Wet Dress Rehearsal - WDR) o DOLILU L-2 day checkout