19 -- PROCUREMENT OF COMMERCIALLY AVAILABLE STEERING SYSTEM FOR COE DREDGE MCFARLAND

Notice Date

September 1, 2000

Contracting Office

U.S. Army Corps of Engineers, Philadelphia Wanamaker Building, Room 643, 100 Penn Square East, Philadelphia, Pennsylvania 19107

ZIP Code

19107

Solicitation Number

DACW61-00-T-0146

Response Due

September 15, 2000

Point of Contact

William A. Bailey, 215-656-6932

E-Mail Address

Click here to contact the contracting office via e-mail (Phillip.J.Breen@nap.usace.army.mil for technical questions. William.A.Bailey@nap.usace.army.mil for contract questions.)

Description

This is a combind synopsis/solicitation for a commercial item prepared in accordance with the format in Supart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. The solicitation is issued as a Request for Quote and incorporates the provisions and clauses in effect through Federal Acquisition Circular 97-19. This is an unrestricted procurement. The SIC code is 3812 and the size standard is 750 employees. Delivery is desired within 180 calendar days from receipt of notice of award to the U. S. Army Engineer District, Philadelphias Ft. Mifflin Distribution Center, Philadelphia, PA. The provision at FAR 52.212-1, Instruction to Offerors -- Commercial Items, applies to this action with the addenda that options and multiple offers are not applicable. The provision at FAR 52.212-2, Evaluation -- Commercial Items, also applies. Offers will be evaluated for the following factors: technical (with technical capability determined solely from submission of product literature, technical features described, and warranty provisions for the offered system), past performance, and price. Technical and past performance, when combined, equal price. A completed copy of the provision at FAR 52.212-3, Offeror Representations and Certifications-Commercial Items, must be submitted with the offer. FAR Clause 52.212-4, contract Terms and Conditions -- Commercial Items, applies to this acqisition. There is no addenda to the clause. FAR Clause 52.212-5, Contract Termsa and Conditions Required to Implement Statues or Executive Orders -- Commercial Items, also applies to this action. Offers MUST be submitted not later than 4:00 p.m., local time, Sep. 15, 2000. The following item is to be acquired: It is the objective of the Government to procure a new, commercially available, steering system upstream of the rudder actuating hydraulic cylinders for the dredge MCFARLAND. The new steering system shall provide improvement over the performance of the existing system and shall be able to efficiently interface with the retained components. The existing rudder actuator incorporating tillers, links, rams and the hydraulic cylinders will be retained. The existing emergency rudder positioning unit and the independent, rudder angle indicator system will also be retained. Basic characteristics of the vessel and the existing steering system are provided below in Section II. II. BASIC CHARACTERISTICS OF THE MCFARLAND AND THE EXISTING STEERING SYSTEM The MCFARLAND is a seagoing hopper and side casting boom type dredge of 6,036 GRT with two 3,000 HP propulsion systems. Except for the load line, the MCFARLAND is not ABS inspected or classed, but is a Subchapter I USCG inspected vessel. Principal dimensions of the vessel are: LOA (incl. boom overhang)319ft, 8 in, LOA (without boom overhang)300 ft, LBP: 288 ft, ABS calculated length: 281 ft, 6 in, Breadth, hull molded: 72 ft, Depth, amidships molded: 33 ft., Design draft Forward: 22 ft, Design draft Aft: 22 ft. The MCFARLAND is equipped with twin rudders employing a single link type Clyde Iron Works hydraulic rudder actuator to operate both rudders. In addition to the actuator, the steering system includes two essentially identical motor driven hydraulic power units with Oil Gear radial piston pumps mounted on a single skid, a Clyde Iron Works designed electric control system with mechanical differential, a hand operated emergency rudder positioning unit and an independent rudder angle indicator system. The hydraulic rudder actuator incorporates a single ram, two opposed, single acting hydraulic cylinders, connecting links and tillers. Travel of the rudders is limited at 36 degrees by mechanical copper stops and at 37 degrees by steel stops. Design characteristics of the existing steering system are: Combined rudder torque at max. ahead at 35O rudder angle: 2,300,000 in-lb, Combined rudder torque at max. astern at 35O rudder angle: 2,500,000 in-lb, Max. hydraulic pressure at max. ahead at 35O rudder angle: 1,700 psi, Max. hydraulic pressure at max. astern at 35O rudder angle: 1,850 psi, Setting of the relief valve in the main hydraulic system: 2,100 psi, Hydraulic cylinder inner diameter: 9 ft, 1/2 in., Hydraulic cylinder piston travel from 35OHO to 35OHO: 30 in. Time from 35O HO on one side to 30O on the other, with one pump in operation, 28 sec, with both pumps in operation-14 sec. III. REQUIREMENTS FOR THE NEW STEERING SYSTEM. The new steering system shall be of the electrohydraulic type, with electronic controls suitable for operation with the existing rudder actuator, with two single acting hydraulic cylinders. The system shall provide accurate and smooth control of the rudders. Requirements include: two essentially identical hydraulic power units, associated motor controllers, feed back repeaters, Electronic control units, main steering console with associated controls and indicators, two steering panels for the existing wing consoles located inside the Wheelhouse, alarm panel for bulkhead mounting in the Machinery Control Room, an autopilot mounted in the main console, a hydraulic oil storage tank, two lock and relief valve manifolds for mounting on the existing hydraulic cylinders, a means for local control from the steering gear room, and all necessary hardware and software required for interfacing with the existing shipboard equipment and systems. The new steering system shall meet the applicable USCG requirements (46 CFR Subparts 58.25 and 58.30, and other applicable requirements) and supplier shall prepare all required diagrams and drawings and obtain USCG approval and certification for the provided system. The new steering system shall also be in accordance with the applicable regulations of ABS Rules for Steel Vessels Under 90 m in Length; however, ABS certification is not required. Hydraulic System: The hydraulic system shall be of the closed loop type. Each power unit shall be fully piped and shall include a hydraulic reservoir with clean-out cover, drain plug and local level gauge, a suction strainer, a return line filter, a low level alarm sensor, pressure gauges, relief valves and any other equipment necessary for proper operation or required by the applicable regulations. Both power units shall preferably be mounted on a common skid not longer than 70" and not wider than 84" suitable for bolting or welding to a shipyard furnished foundation. Electrical Equipment: Each pump shall be driven by an electric motor through a flexible coupling. The motor shall be suitable for the existing power supply of 440 VAC, 3 phase, 60 Hz. Each motor shall be rated for varying duty of 15% load for 60 minutes followed by full load for 60 minutes, however, the rating of each motor shall not be less than 25 HP continuous duty. Synchronous speed of the motors shall be 1,800 rpm. The motors shall be able to be started and stopped remotely from the Wheelhouse and locally from the steering gear room. Electrical equipment, other than the pump motors and controllers, shall be suitable for the 115 VAC, 60 Hz shipboard service power or provided with suitable transformers or rectifiers. Controls: The steering system shall be provided with two separate and independent full-follow-up (FFU) control systems. Both systems shall be operated by a single steering wheel on the main steering console and a single FFU steering lever on each wing panel. An independent non-follow-up (NFU) control system shall be also provided. It shall be operated by jog handles on the main steering console and wing panels. The new main steering console shall be free standing suitable for bolting or welding to a foundation and shall measure not more than 32" in fore/aft and not more than 28 ft. athwartship. It shall incorporate a steering wheel connected to both FFU control systems, an NFU jog lever with spring loaded handle that always returns to center when released, a mode/station-in-control selector switch, a power unit selector switch, any other controls necessary for proper operation of the steering system, an autopilot, and the required alarms and indicators. Each new wing steering panel shall include a FFU (full-follow-up) steering lever, a NFU (non-follow-up) jog handle similar to the one at the main steering console, and the required alarms and indicators. The FFU lever shall be designed such that its position directly indicates rudder order. The autopilot shall preferably be of a conventional type. If an adaptive autopilot is provided, the unit shall be able to operate in the manual mode with its adaptive algorithm turned off. The system shall be arranged such that, in case of failure of the autopilot or the gyro compass, the FFU and NFU steering control systems remain operational. The autopilot shall be suitable for interfacing with the existing Sperry MK-37, Mod. I gyro compass. Instrumentation and Alarms: All required alarms are to be provided for in the Machinery Control Room and the Wheelhouse. Alarms shall be of the self-monitoring type so that a circuit failure will cause an alarm condition, and they must have provision for testing. Alarm panel shall be mounted in the main steering console. Additionally, the main steering console shall include "motor running" and "motor stopped" indicator lights for each motor, a light indicating active NFU jog handle, an alarm acknowledge button, lamp test and a dimmer. Each wing steering panel shall have a light indicating active FFU steering lever, a light indicating active NFU jog handle, and a dimmer.

Record

Loren Data Corp. 20000906/19SOL001.HTM (W-245 SN492795)