Attachment A - SOW.pdf

Attachment A

80LARC858109Q

STATEMENT OF WORK

for Multi-Hoist System and Air Caster System Procurement for the NASA Langley Research Center Landing and Impact Research Facility

1.0. Introduction: The purpose of this effort is to procure a multi-hoist system and an air caster system for the NASA Langley Research Center (LaRC) Landing and Impact Research Facility (LandIR) to support impact dynamics testing under the Human Landing Systems (HLS) Program for the Moon Landing Test (MLT) Project.

2.0. Scope of Work: The Contractor shall provide all necessary winches and an air caster system in accordance with the specifications outlined herein. The Contractor shall ensure all winches and the air caster system adhere to industry standards and regulations. Procurement includes materials, transportation, delivery/offloading, warranty, and manufacturer documentation.

3.0. Objectives: The intent of this procurement is to augment the Gantry capability at the LandIR to simulate 1/6th earth gravity for impact dynamics testing of a lunar lander and to evaluate landing dynamics on a lunar surface. The final multi-hoist system will manage the lift and pullback of a lunar lander test article for swing drop tests against an Impact Barrier. The air caster system will adjust the Impact Barrier’s positioning for different test configurations.

4.0. Procurement Specifications:

4.1. 60k lbs. Capacity Winch. The Contractor shall procure one (1) 60k lbs. capacity winch ensuring it aligns with the provided specifications. This winch system shall be configured with a double reeve to facilitate a lifting capacity of 120k lbs. at the hook of the snatch block. The design of the winch shall adhere to the ASME B30.7 standard. The manufacturer shall supply comprehensive mechanical and electrical schematics in the Imperial measurement system. The winch’s motor shall be positioned on the left side when facing the cable that unwinds from the drum. The guarding provided by the manufacturer as standard will be deemed adequate. NASA will install additional guardrails and designate restricted zones around the winch setup to meet OSHA’s winch guarding requirements. The Contractor shall not provide additional guarding.

4.1.1. Fleet Angle Distance. The design of the winch shall accommodate a minimum Fleet Angle Distance of 68-feet and a single wrap drum with 180-feet of active cable travel plus 4 dead wraps to remain on the drum. Fleet angle shall not exceed 2.0 degrees. Total cable length to be at least 330-feet.

4.1.2. Grooved Drum. The design of the winch shall have a grooved drum sized for a single layer cable wrap with 180-foot active cable travel plus the 4 dead wraps.

4.1.3. Winch Speed. The design of the winch shall accommodate a variable line speed at the drum up to 15 feet/minute with a load speed at the hook up to 7.5 feet/minute in a double reeved configuration.

4.1.4. VFD Control System. The Contractor shall supply a closed loop Variable Frequency Drive (VFD) control system with motor encoder feedback and compatible with the 60k lbs. capacity winch. The VFD control system shall incorporate both a radio controller and a backup tethered pendant of at least 20 feet length. The radio controller shall offer numerical feedback on the winch’s position as determined by the encoder.

4.1.5. Control Switch. The Contractor shall incorporate a selector / isolation switch to the 60k lbs.

capacity winch, allowing transition between radio and pendant control modes.

4.1.6. Motor Braking. The Contractor shall configure the VFD motor control for primary braking, ensuring the motor brake activates post motor halt. The VFD shall have Torque Proving, confirming the motor is providing enough torque to safely lift the load prior to releasing the motor brake.

4.1.7. Motor Encoder. The Contractor shall fit the 60k lbs. capacity winch with a motor encoder for closed-loop VFD control for precise positioning and monitoring to within +/- 0.1 inches.

4.1.8. Rotary Limit Switch. The Contractor shall incorporate a rotary limit switch into the 60k lbs.

capacity winch and shall calibrate this switch accordingly.

4.1.9. Controls Mount Position. The Contractor shall design the controls to be positioned adjacent to the 60k lbs. capacity winch that is to be on the Gantry Center Bent Platform.

4.1.10. Enclosure. The Contractor shall house the controls within an enclosure with a 4X rating by the National Electrical Manufacturers Association (NEMA 4X).

4.1.11. Winch Cable. The Contractor shall provide a winch cable specifically designed for the 60k lbs.

capacity winch, with a length of at least 330 feet. The winch wire rope shall have a minimum design factor of 5.0:1. The specified cable length is designed to fit our testing configuration, including integration with additional rigging slings. Therefore, deviations from the specified length are permissible, provided it does not exceed a tolerance of 5 feet. This allowance ensures flexibility in accommodating the specified setup while maintaining the system’s integrity and functionality.

4.1.12. Wire Rope End Termination. The Contractor shall furnish and install an Open Spelter Socket termination on the 60k lbs. capacity winch cable for the purpose of attachment to the dead-end anchor on the Upper Platform on top of the Gantry Center Bent.

4.1.13. Snatch Block. The Contractor shall equip the 60k lbs. capacity winch with a snatch block with a minimum capacity of 120k lbs., complete with sheave and swivel hook (not a swivel shackle) with a safety latch, for easy lifting sling attachment and removal.

4.1.14. Two-Part Reeving. The 60k lbs. capacity winch shall be designed to be installed with a two-part reeving system with the dead-end securely anchored to the Gantry Center Bent Platform. Utilizing the two-part reeving, the system shall provide 90-feet of vertical travel for the snatch block at a capacity of 120k lbs. The Contractor shall not be responsible for providing the dead-end anchor and mount holes for the base mount hardware for the running sheave and the dead-ended sheave on the Upper Platform on top of the Gantry Center Bent. The sheaves with base mounts will allow for a minimum fleet angle distance of 68 feet.

4.1.15. 60k lbs. Capacity Sheaves with Axles. The Contractor shall outfit the 60k lbs. capacity winch with both a running sheave and a dead-ended sheave. Each sheave shall be capable of handling 60k lbs.

and come with an axle. NASA will incorporate these sheaves, complete with axles, into a built-in mounting structure on the Upper Platform, positioning the axle slightly above the deck level (refer to Figures 9 to 11 in the RFQ attachment B for details). This setup is designed to allow for a structural beam to be placed under the mounting structure, which will support the lifting load. The intended design facilitates a dual-part reeving system, with the dead-end securely fastened to the Gantry Center Bent Platform. This configuration will enable the snatch block to extend up to 90 feet vertically, supporting a combined load of 120k lbs. The Contractor shall not provide additional guarding. NASA will install guardrails and demarcating restricted areas around the sheave installation, in compliance with OSHA’s safety standards for sheave operations. The use of standard safety guards provided by the manufacturer will be considered adequate for these purposes. The Contractor is not required to supply the dead-end anchor, nor are they responsible for providing the base mount hardware for the running and dead-end sheaves on the Upper Platform of the Gantry Center Bent.

4.1.16. 120k lbs. Capacity Synthetic Rope. The Contractor shall supply a high-capacity synthetic rope featuring a 12x12-strand braided construction made from High Modulus Polyethylene (HMPE). This rope shall be designed to achieve a safety factor of 5:1, with a Vertical Working Load Limit (WLL) of no less than 120k lbs., and a Minimum Tensile Strength exceeding 600k lbs. for a Spliced Rope. The rope shall measure 120-foot in length, intended for securing the Lander’s swing cable harness to the Upper Platform on the Gantry Center Bent. The rope shall be configured as an eye-and-eye lifting sling, with splice-terminated eyes at both ends to provide strong attachment points. Additionally, the rope shall undergo proof load testing at 200% of its Safe WLL.

4.1.17. Winch Safety Features. The 60k lbs. capacity winch shall be equipped with an integral fail-safe brake system for added safety during operations. The brake shall be rated for 200% of the motor torque.

4.1.18. Winch Durability. Components of the 60k lbs. capacity winch shall be manufactured using corrosion-resistant materials to ensure longevity, especially in outdoor conditions. To ensure longevity and corrosion resistance the winch shall be painted with an epoxy coating system consisting of zinc primer and epoxy topcoat.

4.1.19. Interface Hole Pattern and Outer Mold Line Dimensions. The Contractor shall supply the Interface Hole Pattern and Outer Mold Line dimensions for the 60k lbs. capacity winch and the sheaves within four weeks following the contract award. The prompt provision of dimensions is critical for NASA to finalize the design details of the Upper Platform.

4.1.20. Minimum Duty Cycle. The 60k lbs. capacity winch design shall accommodate a minimum duty cycle that aligns with the Crane Manufacturers Association of America (CMAA) service classification for a Class C winch, which is intended for Moderate Service applications.

4.2. 30k lbs. Capacity Winches. The Contractor shall procure three (3) 30k lbs. capacity winches, each with a capacity of 30k lbs., ensuring that they meet the specifications provided. These winches shall adhere to the ASME B30.7 standards. The manufacturer shall supply comprehensive mechanical and electrical schematics in the Imperial measurement system. For each winch, the motor shall be installed on the left side when directly facing the cable as it unwinds from the drum. The guarding provided by the manufacturer as standard will be deemed adequate. NASA will install additional guardrails and designate restricted zones around the winch setup to meet OSHA’s winch guarding requirements. The Contractor shall not provide additional guarding.

4.2.1. Fleet Angle Distance. The design of the winch shall accommodate a minimum Fleet Angle Distance of 24 feet and a drum with 90-feet of active cable travel plus 4 dead wraps to remain on the drum. Fleet angle shall not exceed 2.0 degrees. Total cable length to be at least 160-feet.

4.2.2. Grooved Drum. The design of the winch shall have a grooved drum sized for a single wrap cable with a 90-foot active travel plus the 4 dead wraps.

4.2.3. Winch Speed. The design of the winch shall accommodate a variable line speed at the drum up to 12 feet/minute.

4.2.4. VFD Control Systems. The Contractor shall supply a Variable Frequency Drive (VFD) control system, equipped with motor encoder feedback, for each of the three winches with a 30k lbs. capacity.

The VFD control systems shall be compatible with the 30k lbs. capacity winches. Each system shall include a radio controller and a backup tethered pendant controller. The tethered pendant shall be at least 20 feet long for two (2) of the winches and at least 40 feet long for the third (1) winch. For the winches located at the two vertical pullback Ground Towers (see RFQ attachment B), one pendant shall have a length of 40 feet and the other 20 feet, enabling a single operator to manage both winches simultaneously. The radio controller shall offer numerical feedback on the winch’s position as determined by the encoder. Each 30k lbs. capacity winch shall have its own radio and pendant controller.

4.2.5. Motor Braking. The Contractor shall configure the VFD motor control for primary braking, ensuring the motor brake activates post motor halt. The VFD shall have Torque Proving, confirming the motor is providing enough torque to safely hold the load prior to releasing the motor brake.

4.2.6. Motor Encoder. The Contractor shall fit the 30k lbs. capacity winches with a motor encoder for closed-loop VFD control for precise positioning and monitoring to within +/- 0.1 inches.

4.2.7. Rotary Limit Switch. The Contractor shall incorporate a rotary limit switch into the 30k lbs.

capacity winches and shall calibrate this switch accordingly.

4.2.8. Controls Mount Position. The Contractor shall design the controls to be positioned adjacent to the 30k lbs. capacity winches that are to be on the Gantry Ground Towers.

4.2.9. Enclosure. The Contractor shall house the controls within an enclosure with a 4X rating by the National Electrical Manufacturers Association (NEMA 4X).

4.2.10. Winch Cables. The Contractor shall provide winch cables (one for each of the three 30k lbs.

capacity winches) specifically designed for the 30k lbs. capacity winches, with a length of at least 160 feet. The winch wire rope shall have a minimum design factor of 5.0:1. The specified cable length is designed to fit our testing configuration, including integration with additional rigging slings. Therefore, deviations from the specified length are permissible, provided it does not exceed a tolerance of 5 feet.

This allowance ensures flexibility in accommodating the specified setup while maintaining the system’s integrity and functionality.

4.2.11. Wire Rope End Termination. The Contractor shall furnish and install an Open Spelter Socket termination on the 30k lbs. capacity winch cables for the purpose of attaching lifting slings.

4.2.12. Winch Safety Features. The 30k lbs. capacity winches shall be equipped with an integral fail-safe brake system for added safety during operations. The brake shall be rated for 200% of the motor torque.

4.2.13. Winch Durability. Components of the 30k lbs. capacity winches shall be manufactured using corrosion-resistant materials to ensure longevity, especially in outdoor conditions. To ensure longevity and corrosion resistance the winch shall be painted with an epoxy coating system consisting of zinc primer and epoxy topcoat.

4.2.14. Cable Pressure Bar. The design of the 30k lbs. capacity winches shall incorporate a cable pressure bar to guarantee even distribution of the cable across the winch drum’s width during winding and to sustain appropriate cable tension.

4.2.15. Interface Hole Pattern and Outer Mold Line Dimensions. The Contractor shall supply the Interface Hole Pattern and Outer Mold Line dimensions for the 30k lbs. capacity winches within four weeks following the contract award. The prompt provision of dimensions is critical for NASA to finalize the design details of the Ground Tower.

4.2.16. Minimum Duty Cycle. The 30k lbs. capacity winch design shall accommodate a minimum duty cycle that aligns with the Crane Manufacturers Association of America (CMAA) service classification for a Class C winch, which is intended for Moderate Service applications.

4.3. 350k lbs. Capacity Air Caster System. The Contractor shall supply a 350k lbs. capacity air caster system for maneuvering the Impact Barrier designed for uniform load distribution across the air casters.

The system shall incorporate four (4) air casters, each capable of supporting 87.5k lbs., as depicted in Figures 16 and 17 of the RFQ attachment B. The air caster system shall meet the ASME B30.1 standards.

The manufacturer shall provide comprehensive mechanical schematics in Imperial measurements. The Contractor is not responsible for supplying the air compressor needed to operate the air caster system;

NASA will furnish a compatible air compressor. Additionally, NASA will supply the gantry concrete surface overlay and ensure that the operating surface meets the required smoothness and flatness criteria for optimal air caster system functionality.

4.3.1. Power Drive. The Contractor shall supply a robust air-powered drive system engineered to maneuver the Impact Barrier, which can weigh up to 350k lbs., in conjunction with the air caster system.

This system shall enable precise turning and positioning of the Impact Barrier, achieving an accuracy within +/- 1 inch. It shall feature an integrated quick-attach mechanism for effortless detachment and storage when the system is not in operation. NASA will install the drive units along the rear edge of the Impact Barrier. NASA will ensure the floor incline will be maintained within a variance of +/- 0.25 inches across any 10 by 10-foot section.

4.3.2. Load Module and Air Caster Construction. The load modules shall be constructed of Aluminum to reduce overall weight. The air casters shall have an effective lift of at least 2 inches to compensate for floor slope deviations of +/- 0.25 inches over a 10 x 10-foot section.

4.3.3. Mechanical Engineering Standards. The air caster system shall meet the requirements of ASME B30.1. The air casters shall be designed for a 2:1 factor of safety.

4.3.4. Control Console. The air caster system’s control console shall feature individual, lockable precision pressure regulators, each equipped with its gauge for every load module. The control console shall also include a built-in air-filtration system. For enhanced flexibility, the console shall be installed on a portable stand or cart, facilitating easy movement and convenient storage when not in operation.

4.3.5. Air Hoses. The Contractor shall supply all air hoses, appropriately sized for connection from the designated air caster positions to the rear edge of the Impact Barrier (refer to Figures 16 and 17 in the RFQ attachment B). NASA will install the hoses along the existing beam structure of the Impact Barrier.

Quick-disconnect fittings shall be included to facilitate the easy disassembly and storage of the air caster system when it is not in use.

4.3.6. Spare Air Caster Load Modules. The Contractor shall provide two spare air caster load modules.

5.0. Deliverables: The Contractor shall ship deliverables by November 1, 2024. All equipment shall be delivered to NASA at Contractor’s expense.

Summary of Deliverables:

Item SOW Specification No. Due Date

60k lbs. Winch with integrated specifications 4.1. 01-NOV-2024 30k lbs. Winches with integrated specifications 4.2. 01-NOV-2024 350k lbs. Air Caster System with integrated specifications

4.3. 01-NOV-2024

Wire Ropes for all winches 4.1.11.-12., 4.2.10.-11. 01-NOV-2024 Snatch Block for 60k lbs. winch 4.1.13. 01-NOV-2024 60k lbs. Capacity Sheaves with Axles for 60k lbs. winch 4.1.15. 01-NOV-2024 120k lbs. Capacity Synthetic Rope 4.1.16. 01-NOV-2024 VFD Motor Control System with Motor Braking and other integrated specifications for all winches

4.1.4., 4.1.6, 4.2.4.-5. 01-NOV-2024

Power Drives for air caster system 4.3.1. 01-NOV-2024 Spare Air Caster Load Modules 4.3.6 01-NOV-2024 Full mechanical and electrical drawings in Imperial units for all winches and air caster system

4.1., 4.2., 4.3. 01-NOV-2024

Interface Hole Pattern and Outer Mold Line Dimensions for all winches

4.1.19., 4.2.15. Four (4) weeks after award

All Certificates of Conformance / Material Certificates / Weld Procedure Documents / Warranties / Manuals

6.0. 01-NOV-2024

6.0. Documentation: The Contractor shall provide NASA all essential documentation to include certificates of compliance, warranty information, operation and maintenance manuals, and maintenance protocols for the winches and air caster system.

7.0. Applicable Documents: The Contractor supplied hardware shall adhere to the standards and guidelines as described in the following documents.

Code Description ASME B30.1 Jacks, Industrial Rollers, Air Casters, and Hydraulic Gantries ASME B30.7 Winches

Code Description ASME B30.26 Rigging Hardware ISO 4309 Cranes - Wire ropes - Care and maintenance, inspection, and discard NFPA 70 National Electrical Code (NEC) OSHA 29 CFR 1910 Subpart O Machinery and Machine Guarding OSHA 29 CFR 1910.179 Overhead and gantry cranes

8.0. Place of Performance: The Contractor shall work with the Technical Representative (TR) for delivery point specifics.

NASA Langley Research Center Landing and Impact Research Facility (LandIR) – Gantry Site Hampton VA 23681

9.0. Period of Performance: The period of performance will be the award date through November 1, 2024.