SOW_19-9D6_Low_Dose_Cart_Upgrade_19April2019_POapproved_-_Redacted.pdf

STATEMENT OF WORK (SOW)

DMEA 19-9D6

Design and Installation of an Experiment Cart Drive upgrade

19 April 2019

Project Engineer or Contract Officer Representative: Mohammad Arshad, DMEA/MEBD, (916) 231-1603

1.0 SCOPE:

1.1 TITLE: Design and Installation of an Experiment Cart Drive upgrade.

1.2 APPLICABILITY: Science and Engineering Gamma Irradiation Test (SEGIT) Facility’s low dose irradiator needs new cart system.

1.3 BACKGROUND: The manual cart currently installed in the Low Dose Irradiator is not as accurate as the one in the High Dose Irradiator. ISO17025 certification officials have recommended replacement of the current cart with a new one similar to High Dose Irradiator Cart. New cart design shall be based on the current High Dose

Irradiator cart system.

1.4 PURPOSE: The purpose of this task is to design and install an experiment cart drive upgrade in the low dose irradiator.

2.0 REFERENCED GOVERNMENT PROVIDED RESOURCES:

2.1 GOVERNMENT DOCUMENTS: None

2.2 OTHER DOCUMENTS: None

2.3 GOVERNMENT FURNISHED EQUIPMENT: DMEA will provide new and modified parts to support the

Low Dose experiment cart drive upgrade. The contractor shall use provided parts in the design of the cart upgrade.

[Note: If a part is not be used, the final decision shall be of the DMEA engineers.]

Manufacturer/Vendor P/N Description

Techno Isel 2111342075 Techno Isel Metric Ball Screw, 16 mm diameter x 5 mm pitch.

hard chrome plated

Techno Isel 2130011000 Metric anti-backlash ball nut for P/N 2111342075

Stock Drive Products A2Z29MC1010 Metric right angle drive with 12 mm diameter shafts

W.M. Berg CO20M-22 Wafer spring coupling, 12 mm x 12 mm bores

W.M. Berg CO20M-19 Wafer spring coupling, 8 mm x 12 mm bores

J.L. Shepherd &

Associates

N/A ½” diameter steel shafts for mechanical counter drive (existing) –

2 each

Mission Industries 250BMD-0010.0-

CW-1/2

Mechanical counter with optional mounting holes on back, motor-driven input, 0010.0 counts/revolution, CW increasing, 1/2" bore, NO zero adjust screw

J.L. Shepherd &

Associates

N/A Thrust bearing block (black anodize finish) per JLS&A drawing

no. A-0484-3799-37-2, Rev. A (spare from High Dose irradiator experiment cart upgrade).

Waldes Truarc N5000-118 Internal retaining ring (or equivalent in stainless steel) – 2 each.

Microswitch BZ-2RW Snap action switch – 2 each, for limit switch assemblies

LMB Heeger Crown Royal CR- Chassis box – 2 each, for limit switch assemblies

J.L. Shepherd &

Associates

N/A Mounting bracket for NEMA 34 motor/gearbox (existing)

SKF 7200 BECBP Single row annular contact bearing, 10 mm bore x 30 mm OD x 9 mm wide – for metric ball screw, 2 each

SKF 6200 2ZJEM Deep groove radial ball bearing, 10 mm bore x 30 mm OD x 9 mm wide, double shielded – for metric ball screw

Nice 3014DSTNTG18 Deep groove radial ball bearing, 3/8” bore x 1-1/8” OD x 3/8” wide, double shielded – for experiment cart center support, 2 each

Thomson 1/2L-PD-CPPE-CTL 1/2" dia. linear bearing shaft cut 36" long, hard chrome plated – 2 each

Thomson LSR-8-PD Low profile support rail for linear bearing shaft – cut 36” long, hard chrome plated, 2 each

Thomson SPB-8-OPN Super Ball Bushing - for 1/2" shaft, 4 each

Thomson OPN-81420-SS Stainless steel ball bushing - 1/2" bore, unmounted, 4 each

Thomson OPN-S-500-SS Seal for 1/2" bore open ball bushing – stainless steel, 8 each

N/A N/A 5-16”-24NF socket set screw, flat point – for experiment cart leveling, 2 each

N/A N/A 6-32NC x ¾” long socket head cap screw – for linear bearing shaft/rail mounting, 18 each

McMaster-Carr 6157K14 Aluminum ½” bore x 1-1/8” OD x 13/32” wide clamping shaft collar – for experiment cart locating pins, 2 each

Stafford 7A004 Aluminum ¼” bore x 11/16” OD x 5/16” wide clamping shaft collar – for limit switches, 8 each

Ruland 2AKZ1 Steel ½” bore x 1-1/8” OD x 13/32” wide clamping shaft collar – for mechanical counter hub shaft clamp

W.M. Berg 7CP68A-14 Aluminum 14 tooth sprocket for ½” pitch cable chain – ½” bore, 2 each

W.M. Berg 7CCF-32-U ½” pitch cable chain – 32 link

W.M. Berg 7CCF-34-U ½” pitch cable chain – 34 link

McMaster-Carr 90270A684 Stainless steel precision shoulder screw – 8 mm diameter x 6 mm long shoulder, for fabricating right angle drive locating screws, 6 each

W.M. Berg 25CP68A-24 Aluminum 24 tooth sprocket for ¼” pitch cable chain – ½” bore, 2 each

W.M. Berg 25CP68A-15 Aluminum 15 tooth sprocket for ¼” pitch cable chain – ½” bore

W.M. Berg 25CP68A-30 Aluminum 30 tooth sprocket for ¼” pitch cable chain – ½” bore

W.M. Berg 25CCF-40-E ¼” pitch cable chain – 40 link

W.M. Berg 25CCF-50-E ¼” pitch cable chain – 50 link

McMaster-Carr 91829A205 Stainless steel 3/16” x ½” shoulder screw – for limit switch stop collars, 2 each

McMaster-Carr 91829A207 Stainless steel 3/16” x 3/4” shoulder screw – for limit switch actuator collars, 2 each

McMaster-Carr 91829A208 Stainless steel 3/16” x 1” shoulder screw – for limit switch upper collars, 2 each

Dodge 123830 ½” bore pillow block (existing) – 4 each

N/A N/A Steel 3/8” x 1” shoulder screw (existing) – for experiment cart center support bearings, 2 each

Bayside NE34-010 NEMA 34 gearhead – 10:1 ratio, ½” diameter output shaft, input pinion bore = ½” (existing)

Moog Animatics K004-8669 PFC1500W-48 Anamatics Power Supply

Interchange Prod: PFC1500W-48

Brnd: ANIMAT Mfr#: PFC1500W-48

Vend#: PFC1500W-48

Moog Animatics K003-4627 CBLIO5V-3M 15 Pin D-Sub I/O Cable 3m

Brnd: ANIMAT Mfr#: CBLIO5V-3M

Vend#: CBLIO5V-3M

Moog Animatics K003-4657 CBLSM1-3M Power and Communication Cable

Brnd: ANIMAT Mfr#: CBLSM1-3M

Vend#: CBLSM1-3M

Moog Animatics K004-3268 KITUSB232485 USB Converter

Brnd: ANIMAT Mfr#: KITUSB232485

Vend#: KITUSB232485

Moog Animatics K005-3176 SM34165DT Size 34 Short Stack High Torque Motor

Brnd: ANIMAT Mfr#: SM34165DT

Vend#: SM34165DT

TBD TDB Joystick compatible with the above motor.

2.4 GOVERNMENT FURNISHED INFORMATION: None

2.5 GOVERNMENT FURNISHED FACILITIES/ACCESS: Access will be provided to Building 620, room 136, warehouse and room 139.

Facility/Access Date

Building 620, Room 136, Room 139, and warehouse. After Award of

Contract.

3.0 REQUIREMENTS:

3.1 GENERAL REQUIREMENTS:

3.1.1 RESERVED

3.2 PROGRAM MANAGEMENT: The contractor shall perform administrative, technical, financial management, during the course of this effort and shall maintain a status of their effort towards achieving the SOW objectives, including all technical activities and efforts, problems/deficiencies, impacts, and recommended solutions. (A001).

3.2.1 TECHNICAL INTERCHANGE MEETINGS (TIMs): The contractor shall conduct TIMs as necessary in the performance of this task. The TIM with the contractor shall be scheduled when there is need for technical interchange between the government and the contractor. The content of the meeting can include the discussion of any information that has impact upon the task activities, including documentation contents or format. (A002)

3.3 TASK REQUIREMENTS: The purpose of this task is to design, fabricate and install an experiment cart drive upgrade in the low dose irradiator

3.3.1 REQUIREMENT: DMEA requires a new cart system to accurately position test articles at desired locations in the Low Dose Irradiator. The system must be able to repeat the process with no errors in location accuracy.

3.3.2 Design: The contractor shall design the new cart system based on the existing cart system installed in the

High Dose Irradiator. DMEA engineers must review and approve the design before the system can be manufactured and installed. (A003)

a) The cart system must be able to accommodate existing dose enhancement chambers used during irradiation. Final height of the new cart not to exceed +0.1” of current height.

b) Cart system upgrade shall not require a separate computer for operation and must be standalone.

Initial programming if any via computer is acceptable, as long as DMEA can replicate programing if required.

c) The cart system shall have variable speed control for the movement of the cart.

d) Cart movement must be controlled with a joy stick or similar mechanism.

e) Cart system design must be based on government provided metric ball screw for the accurate movement of the cart inside the irradiator chamber. Chain drive mechanism shall not be acceptable.

f) Cart movement resolution / accuracy must be 0.1 mm.

g) Cart design must have automatic stopping mechanisms to stop the cart at either end without causing any damage to the irradiator or cart system.

h) System must incorporate a mechanical counter to accurately track movement of the cart.

i) Cart weight capacity must be at least 250 lbs. or greater.

j) All components incorporated in the design to be placed in the low dose chamber must be corrosion resistant.

k) Motor control shall be via a bidirectional joystick and speed selector switch incorporating low, medium and high speeds as on the existing high dose irradiator cart system. Cart speed must be variable from approximately 0.05 mm/sec. to 30 mm/sec. Joystick deflection shall control motor speed within the selected speed range.

3.3.3 Installation: The contractor shall perform the research and development, design and installation for DMEA’s desired Low Dose Device Experiment Cart Drive upgrade. The contractor shall provide the final design, fabrication and installation of the new Experiment Cart upgrade system on-site at DMEA. [Note: DMEA engineers will review and approve final design drawings before fabrication of the system can proceed.]

3.3.4 Installation: The contractor shall install the DMEA approved cart drive system and hand over a working cart drive system as per the requirements. There shall not be any excess radiation leakage around or through the new cart installation.

3.4 PROGRAM SUMMARY: None.

4.0 POINTS OF CONTACT:

DMEA/ MEBD: Mohammad Arshad / Project Engineer

/ RSO

Address: 4234 54th Street

McClellan, CA 95652-2100

Voice: (916)231-1603

E-Mail: mohammad.arshad@dmea.osd.mil mailto:mohammad.arshad@dmea.osd.mil