RSRV Centrifuge - Purchase Specification (Rev. 8) 20250605.pdf

Prepared By: FSC / FSG:

Blayne Gipson, Capital Investment Program Manager 4935 7278 4th Street, Bldg. 100, Bay L, Rm. 7, Hill AFB, UT 84056 Phone: (801) 586-7421, Email: blayne.gipson.2@us.af.mil

Purchase Specification for

RS/RV Centrifuge

309 MMXG Flight Systems Repair, Hill AFB, UT 84056

Purchase Request (PR) Number: TBD

Version date: 05 June 2025

1 PURPOSE / SCOPE

This purchase specification establishes the minimum requirements for the purchase of a centrifuge to ensure continued support of operational acceptance/assurance (OA) testing, troubleshooting and repair, and aging and surveillance testing of the MMIII MK12A and MK21 Reentry Vehicles and their components and assemblies.

2 REFERENCE DOCUMENTS

2.1 General

The documents listed in this section are specified in Sections 3 and 4 of this document.

This section does not include documents cited in other sections of this document. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in Sections 3 and 4 of this document, whether or not they are listed.

2.2 Government Documents

2.2.1 Specifications, Standards, and Handbooks – The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

MIL-DTL-26482, Electrical Connectors

AFMAN 17-1301, Computer Security

2.2.2 Other Government Documents, Drawings, and Publications – The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

08646 Slip Ring Wiring Schematic

2.3 Order of Precedence

In the event of a conflict between the text of this purchase specification and the references cited herein, the text of this purchase specification shall take precedence.

Nothing in this purchase specification shall supersede applicable laws and regulations unless a specific exemption has been obtained.

3 REQUIREMENTS

Note: The current centrifuge at Hill AFB UT is a two-platform system with one end used strictly for counterweights. 309th MMXG is open to using either a single platform centrifuge or a two-platform centrifuge as testing only requires one asset to run per test.

3.1 Physical / Functional / Design

3.1.1 Size and Weight

a. Centrifuge maximum footprint (per centrifuge): 18’ Width x 18’ Depth x 8’ Height.

b. The centrifuge(s) shall be installed on existing 18’ x 18’ concrete slab(s). The weight of equipment and components during installation shall not exceed the surrounding raised floor capacity of 3,000 lbs. / ft2. Access for installation shall be through the shop loading dock door (approximately 10’ Width x 9’ Height).

c. Controller / Controller Desk maximum footprint: Approximately 10’ x 6’.

3.1.2 Electrical Power: 480 VAC, 3 Phase, 60 Hz; 120/208 VAC, 3 Phase, 60 Hz.

3.1.3 Mounting Platform

a. Mounting Platforms shall be mechanically and electrically compatible with existing

Air Force Fixtures and Unit Under Test (UUT) cabling.

b. Mounting Platform size: 24” square minimum horizontal mounting surfaces with 4x4 grid bolt pattern (sixteen 5/8-11 thread inserts per platform on 5-inch centers).

c. Mounting Platform alignment holes: two 0.250” diameter 0.5” deep dowel pin holes

(layout shown in Figure 1.) to accommodate fixture alignment pins.

d. Package Size (volume containing fixture with attached UUT): 24” cube minimum

(24”x24”x24”).

e. Cable Clearance: minimum 3” clearance between mounting platform and connectors for UUT cabling (see Figure 1.).

3.1.4 Slip Rings

a. 76 channel slip ring capacity minimum with individually shielded leads. The shields shall be isolated electrically from the machine frame and spindle. The spindle and rotating arm shall be grounded to the machine frame by separate slip rings.

i. The channel slip rings and leads must meet the current carrying capacity of the input lines from / to the unit under test (UUT):

1. At least 76 lines at 10 Amps.

ii. Electrical noise – Less than 0.010 volts, 2 rings in series, over full G range.

3.1.5 Signal Wiring and Connectors

a. Static Resistance – Less than 0.250 ohms measured from arm mating connectors to external equipment connectors.

b. Connector pin outs / slip ring wiring shall be compatible with existing Air Force test equipment. (Layout as shown in Figure 2. and Figure 3. of this document).

Note: Figure 3. Includes 3 connectors for each arm (side a and side b). Only one set of connectors is required.

c. Connectors for arm end(s) and for data acquisition shall be compatible with Air Force fixtures and cables. (See Figure 2. for details).

d. Connector location: UUT connectors shall be located on the inboard side of the mounting platform as shown in Figure 1.

e. The contractor shall provide all extension cables necessary to connect Air Force test equipment / UUTs to centrifuge connectors.

3.1.6 Monitoring Devices

a. Spindle Accumulated Run Time Meter.

b. RPM Meter

1. Note: RPM meter display shall have sufficient resolution to meet requirement 3.2.8 a of this document when used to calculate acceleration: (𝑝𝑖 ∗ 𝑅𝑃𝑀 / 30)ଶ * R / G, where R=arm radius in inches, and G = 385.90 in/s^2).

3.1.7 Controller

a. Windows 11 Enterprise Operating System, Microsoft Office, Intel i7 CPU (or later), 16 GB RAM (at a minimum), at least 500 GB Solid State Hard Drive, TPM 2.0 security-enabled, and read-write optical drive. (Contractor shall also include the following STIGs, at a minimum (available for download at public.cyber.mil):

i. .Net

ii. Edge

iii. Defender

iv. Firewall

b. Controller and complete centrifuge system shall meet Air Force security requirements in accordance with AFMAN 17-1301 Computer Security. The following capabilities are not allowed:

i. Wireless capabilities (e.g. Wi-Fi, Bluetooth, radio frequency, infrared wireless devices or any device capable of sending or receiving a wireless signal).

ii. Photographic or audio recording capabilities.

iii. An Air Force Systems Security Officer shall inspect IT equipment before install to ensure above capabilities are disabled or not included.

c. Control Modes

i. Manual – The desired RPM or G-level can be commanded, allowing operators to change speed in increments and terminate the test.

ii. Automatic – Profile testing can be performed by programming the computer to perform G vs. Time profiles saved on the system.

d. Control Features

i. Controller shall provide a Real-time display of the G vs. Time profile.

ii. Controller shall save and print G vs. Time profiles as-run on centrifuge

iii. Controller shall save comma separate variable (.csv) files of profiles as-run on centrifuge.

iv. Controller shall take distance from center of rotation to UUT center of mass as an operator selectable input, allowing tests to run at different radii within the mounting platform package size of 3.1.3 d.

v. Controller shall save pre-balanced arm configurations allowing operators to select and load saved auto balanced weight positions.

3.2 Performance

Note: performance requirements apply to all radii within the 24”x24” mounting platform.

3.2.1 The centrifuge shall achieve an operational availability of 98% per year during normal operation. Operational availability is defined as the percentage of workdays within a year during which the centrifuge is fully functional and not undergoing unscheduled maintenance. Unscheduled maintenance is defined as any maintenance required beyond routine preventative maintenance procedures.

3.2.2 Centrifugal Capacity: 24000 G-pounds minimum per platform with the center of gravity of the test object up to 12 inches above the mounting surface of the rotating arm.

3.2.3 G Range: Zero (0) to one-hundred fifty (150) Gs minimum.

3.2.4 Speed Stability: Drift less than +/- 0.02% per minute of set speed (RPM). Repeatability of +/- 0.1% of set speed (RPM).

3.2.5 Load Capacity: 160 lbs. minimum on each mounting platform through full G range

3.2.6 Static Weight Capacity: 250 lbs. minimum on each mounting platform.

3.2.7 Acceleration Rates: 0 G to 100 G or 100 G to 0 G in 20 seconds or less with 150 lbs. on each mounting platform.

3.2.8 Accuracy

a. Acceleration: Within 0.115% of set acceleration, measured at test object center of mass.

b. Timing: 10-ms at G level inputs less than 1 G. 1-ms at G level inputs from 1-150 G.

c. Calculations: a value of 385.90 in/𝑠ଶ shall be used for G.

3.2.9 Centrifuge Arm shall include an automatic balancing system for dynamic balance of centrifuge loads to the following specifications:

a. Minimum balancing capability of up to 5 lbs. difference for either mounting platform.

b. System shall be able to reduce imbalance to one ounce (oz.) max.

c. Balancing system shall allow saving of balanced arm configurations (see 3.1.7 d v.).

3.3 Enabling

3.3.1 Delivery & Installation

a. The contractor shall assemble and install the system at Hill AFB. Installation is considered complete only when the system is fully assembled, installed, and successfully passes all acceptance testing as defined in Section 4.1 of this document.

b. The contractor shall be responsible for packaging and shipment of all centrifuge parts and data.

c. The contractor shall provide all necessary tools, personnel, expertise, parts, and equipment to install and assemble the system, except as explicitly agreed upon by the receiving shop at Hill AFB.

d. The contractor and its representatives shall comply with all applicable regulations and security requirements governing visitation to Hill AFB.

e. The contractor shall ensure installation and delivery procedures meet the size and weight restrictions of section 3.1.1 of this purchase specification.

f. The contractor shall provide to the government (a minimum of 180 days prior to installation) the facility requirements necessary to install / operate the system (anchor bolts, electrical hookup requirements, etc.).

3.3.2 Training

a. On-site training shall be provided by the contractor following installation and acceptance testing, consisting of a minimum of two (2) eight-hour days of operator and/or programming training, and two (2) eight-hour days of maintenance training.

b. The training shall ensure Government personnel achieve a full understanding of the function(s), operation(s), and maintenance of the centrifuge(s).

3.3.3 Testing and Acceptance

a. The contractor shall acceptance test the system at Hill AFB following delivery and installation IAW Section 4 Verification.

b. The government has the final authority for acceptance of the test stand, control console, and all Technical Data and CDRLs associated with this specification.

3.3.4 Technical Data

The contractor shall prepare and provide at least two hard copies (paper) and at least two electronic versions (on CD) of items a. – g. these copies / electronic versions shall be provided to the government at or before system installation.

All documentation and technical data shall be written in the English language and be grammatically correct. The Manuals shall be fully text searchable and contain a linked table of contents. The Manuals shall contain all information necessary to allow Hill AFB technicians to operate, maintain, and calibrate the system.

a. Operation Manual(s)

b. Maintenance Manual(s)

c. Calibration Manual(s)

d. Theory of Design Manual(s)

e. Illustrated Parts Breakdown (IPB)

a. For all special design parts not commercially available, the contractor shall prepare and provide engineering drawings which meet at a minimum ASME Y14.100 and Y14.5.

f. Comprehensive Theory of Operation Information

g. List of Recommended Spare Parts

a. Ensure each part is accompanied by a manual or drawing.

b. The contractor shall provide a list of spare parts necessary to sustain the centrifuges. The spare parts list shall be in accordance with CDRL A100.

Note: The contractor shall maximize use of Commercial Off-The-Shelf Parts (COTS). These parts should be delivered with maximum available technical details. COTS parts must not compromise the performance or reliability of the completed system.

c. The government shall review all manuals and tech data before acceptance, retaining final approval authority.

d. Data Rights: All data and CDRLs produced under contract are considered U.S.

Government property with unlimited rights, unless otherwise negotiated.

3.4 Environmental, Safety, & Health (ESH)

3.4.1 Safety Measures

a. Solid shrouded safety guard to prevent injury to equipment operators and bystanders due to rotating parts and loose test items. Shroud shall completely enclose the UUT and rotating arm.

b. Safety measures to prevent the operator from overextending the capability of the centrifuges. These measures shall include calculating the maximum g-level or RPM level for the specific radius and weight of each test to ensure the g-lb capacity of the machine will not be exceeded.

c. G limit switches manually selectable, to prevent the centrifuge from exceeding a selected range.

d. A dynamic unbalance interlock to automatically stop the centrifuge if an unbalance condition occurs (an unbalance condition is an imbalance greater than 1 oz., see 3.2.9 b.).

e. Door interlocks to prevent the centrifuge from starting if shroud doors are open or unlocked.

f. Door interlocks to automatically stop the centrifuge if shroud doors are opened or unlocked while arm is rotating.

g. Door interlocks to prevent opening of the shroud doors while the arm is rotating. This interlock function shall operate whether the system power is on or off.

h. Indicators in the form of lights, messages, etc. to notify operators of unsafe conditions in 3.5.1 c. – 3.5.1 g.

i. Emergency stop button / switch located in an easily accessible and visible location.

j. Password and Username protected Computer / Operator interface preventing unauthorized individuals from operating the machine.

k. Start-Up checklist within the software requiring operators to confirm the following before proceeding with a test.

a. Verify the test item and fixture are secure.

b. Verify there are no loose items / F.O.D. within the machine.

c. Verify the centrifuge doors are closed and locked.

d. Verify area is clear of non-essential personnel

l. The contractor shall prepare and provide a Safety Assessment Report (SAR) in accordance with CDRL A067.

3.5 Warranty and Spare Parts

a. The centrifuge shall have a one-year unlimited warranty on all parts and labor required to maintain the centrifuge to specifications. The system shall also include a minimum spindle run-time warranty of 1000 hours.

b. The contractor shall provide a projected service life for the centrifuges.

c. Minimum sustainment and service life of new centrifuges shall be 20 years. The contractor shall provide certification that the system is designed to function for a minimum of 20 years. Certification shall be provided in accordance with CDRL A004, Certificate of Compliance.

Figure 1. Mounting Platform Layout (inches).

Inboard

Outboard

Figure 2. Pin-out / Connector Layout.

Figure 3. Slip Ring Wiring (current system).

(The government holds unlimited rights to this drawing, see Appendix for release letter).

4 VERIFICATION

4.1 Types of Verification

Acceptance Testing

The contractor shall prepare and provide an Acceptance Test Plan and Test Procedures according to CDRLs A063 and A061. Upon formal government approval of the acceptance test plan and test procedures, and after installation of the system, the contractor shall schedule acceptance testing with the government. Verification by demonstration and testing shall be utilized where practical followed by inspection and analysis. Test procedures shall verify all requirements under sections 3.1, 3.2, 3.4.

and 3.5. In addition, testing shall demonstrate the centrifuges’ ability to successfully run asset profiles and testing profiles provided by the government. Successful test runs configured with engineering assets and air force equipment shall also be required as part of testing to verify proper integration with simulation and measuring equipment.

After successful testing the contractor shall provide an Acceptance Test Report in accordance with CDRL A064. Final Acceptance for the system is under the sole discretion of the government and shall occur after successful completion of all testing and government acceptance of all CDRLs and Technical Data.

4.2 Associated DIDs

CDRL Title Data Item Description

Paragraph

A067 Safety Assessment Report DI-SAFT-80102C 3.4.1 l.

A100 Proposed Spare Parts List DI-PSSS-80134B 3.3.4 g. b.

A004 Certificate of Compliance DI-MISC-81356 3.5 c.

A061 Test Procedure DI-NDTI-80603A 4.1 A063 Acceptance Test Plan DI-QCIC-81891 4.1 A064 Acceptance Test Report DI-SAFT-80102C 4.1

5 ATTACHMENTS

Unlimited Rights Release Letter from Calistoga Consulting Co.