1、MIL-U-23530A 20 H 9999906 03926117 5 MIL-M-23530A (SH) 8 June 1978- SUPERSEDING MIL-M-23530 (SHIPS) 21 February 1962 , (See 6.5) MILITARY SPECIFICATION MOCK-UPS OF MAIN AND AUXILIARY SHIPBOARD MACHINERY SPACES This specification is approved for use by the Naval Sea Systems Command and is available f
2、or use by all Departments and Agencies of the Depart- ment of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the development and presentation of mock-ups of main and auxiliary shipboard machinery spaces and the require- ments for mock-up booklet and other supporting docu
3、mentation. required for spaces such as the engine room, fire room, auxiliary spaces, fairwater, uptakes, fan rooms, countermeasure launcher room, torpedo room, or other spaces or stations, as specified (see 6.2.1). of the types and classes specified in 1.2.1 and 1.2.2, as specified (see 6.2.1). Mock
4、-ups will normally be 1.2 Classification. Mock-ups of machinery spaces and equipment components shall be 1.2.1 Types. Machinery space mock-ups shall be of the following types: - Type I - Reduced scale. Type II - Full scale. 1.2.2 Classes. Class 1 - Exact reproduction of shape and external dimensions
5、. Class 2 - Reproduction of general shape and major external dimensions in sufficient detail to permit easy identification and to ensure arrangements compat- ibility with all adjacent equipment, components , and systems. Class 3 - Edproduction to show volume occupied by an item by use of blocks, oth
6、er simple shapes, or combinations of shapes. Equipment components and systems shall be of the following classes: . 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following document, of the issue in effect on date of invitation for bids or request for proposal, forms a part of this specificatio
7、n to the extent specified herein: STANDARD MILITARY MIL-STD-129 - Marking for Shipment and Storage. (Copies of specifications , standards , drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as direct
8、ed by the contracting officer.) the extent-i- Unless otherwise indicated, the issue in effect on date of in- vitation for bids or request for proposal shall apply. 2.2 Other ublications. The following documents form a part of the specification to Beneficial comments (recommendations, additions, dele
9、tions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Ship Engineering Center, SEC 6124, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at
10、the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-23530A 20 3977906 03726118 7 MIL-M-235 3 OA ( SH) NATIONAL FIRE PROTECTION ASSOCIATION National Electric Code. (Application for copies should be addressed to
11、 the National Fire Protection Association, 470 Atlantic Avenue, Boston, Massachusetts 02210.) UNIFORM CLASSIFICATION COMMITTEE Uniform Freight Classification Ratings, Rules and Regulations. (Application for copies should be addressed to the Uniform Classification Cormnittee Agent, G. F. Earl, Tariff
12、 Publication Officer, Room 1106, 222 South Riverside Plaza, . Chicago, Illinois 60606.) NATIONAL CLASSIFICATION BOARD National Motor Freight Classification Classes and Rules. (Application for copies should be addressed to the ATA Tariff Section, 1616 P Street, (Technical society and technical associ
13、ation specifications and standards are generally N.W., Washington, DC 20036.) available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 3. REQUIREhaNTS 3.1 General. Unless otherwise specified in the contract (see 6.2.1), mock-up construc- t
14、ion, including any required approvals, shall be completed prior to release of construction drawings for ship construction. Mock-up construction shall be based on drawings developed by the contractor, and shall reflect NAVSEA direction and guifiance provied by submission to the contractor of document
15、s such as drawings, sp.cifications, schedule of equipment require- ments, Design Work Studies (DVS), and other details as required to reflect design concepts, including shipboard compartmentation, passageway configuration, space allocation, and major structural interferences. Drawingcrequired for Go
16、vernment-furnished equipment and material will be provided by NAVCEA or a NAVSEA-authorized source. and guidance is not provided, the contractor shall assume responsibility for development of In areas where NAVSEA direction . such areas. 3.2 Design. Contractor shall design the mock-up to facilitate
17、evaluation of the proposed design in order to determine suitability with respect to functional and operational requirements in conformance with 3.2.2. to enable such functions to be readily simulated. board heights, clearances, and other dimensional requirements. Space perimeters shall be defined by
18、 inclusion of false decks, decks, overheads, bulkheads, and interfering stanchions, beams, and girders. All items of machinery and equipment shall be shown, and perimeters shall be defined by reproduction to the detail required as specified herein and shall include foundations, shock mounts, and ite
19、ms such as intesconnecting conduit, pipe, tanks, manifolds, panels, gageboards, gratings, and cables, and access requirements for operation, control, and maintenance. Component dimensions shall include insulation where used over equipment and pipfng. as in pipes and valves) and of personnel (from a
20、human factors viewpoint) shall be shown. For type II, flushing breaks, test connections, transition welds, and control and sensing elements shall be identified. Additionally, obstructions or intrusions into the space of items such as ventilation, piping, lighting, insulation, and wireways shall be m
21、odeled or simulated as required for evaluation of impact. design and functional requirements by consideration of the following: Components shall be reproduced to the detail required 3.2.1 Details. Mock-up shall be in sufficient detail to correctly depict actual ship- Where applicable, and significan
22、t for operation, flow direction of material (such 3.2.2 Function. Nock-ups shall be capable of demonstratina compliance with ship (a) Functional operability, including human factors engineering concepts, manning, (b) (c) personnel requirements, and general safety features. ments. instruments, thermo
23、meters, valves, controls, telephones, indicators, and other items requiring visual, sound, or manual observations or attention in the operation of the plant). Capability for continued system operation with shutdovm or removal of a dupli- cate unit for repair. Elimination of interferences by indicati
24、on of actual operating space require- Provision of optimum control area arrangement and operating facilities (gages, (d) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-2353OA 20 W 7777906 OL72b47 7 MIL-M-23530A(SH) (e) if) Consideration of e
25、nvironmental conditions, such as not locating equipment Provision of safety features such as shields around high pressure fuel joints, flanges , and equipment with hot surfaces. sensitive to high temperatures and humidity where adverse effect on life or performance would result and not locating smal
26、l piping where it can be damaged by being stepped on or struck. and methods of removing equipment from machinery spaces for maintenance or replacement, and access in all bilge regions for maintenance of all piping, foundations, and ships structure. other equipments, system, and spaces. (9) Provision
27、s for maintainability, including access and spatial requirements (h). Obtaining the most direct run of piping and wiring. (i) Consideration of interface compatibility, including interrelationships with (j) Ability to identify new or alternative material or equipment requirements. (k) Provide for che
28、cking accuracy of Government-Furnished Information (G.F.I.). (1) Ability to demonstrate that systems, subsystems, and components (such as cabinets, cables, valves, piping, foundations, lighting, and ventilation) can be installed, operated, maintained, adjusted, and repaired within allocated-spaces a
29、nd without interference. (m) Efficiency of flow path sequences to facilitate operation, maintenance, and overhaul an8 identification of potential problems. 3.2.3 Trpe L7. Type I mock-ups shall be in reduced scale. Unless otherwise specified 3.2.3.1 General. Unless otherwise specified (see 6.2.1), ty
30、pe I shall be class 2 or (see 6.2.11, type I shall be constructed to a scale of 1-1/2 inches equal to 1.0 foot. better reproductions. Piping 3 inches in diameter and larger measured over the insulation, shall be shown. Gage piping, details of gage dials, instrument faces, and moving parts are not re
31、quired to be shown. Class 1 may be designated for specific items where critical simulations are required to be demonstrated. Where mock-ups are required to be shipped from the-point of fabrication, they shall be Constructed in sections subdivided as required to accommodate road or rail transport lim
32、itations. Where mock-ups are required for contiguous spaces, mock- up sections shall be arranged in the same relationship. Mherqan adjacent space is not re- quired to be fully mocked-up as specified herein, but where functional and operation rela- tionships to the mocked-up space is important, such
33、spaces or compartments shall be roughed in by modeling decks, bulkheads, and doorways as specified (see 6.2.1). elimination of the simulated overhead decking; beams, girders, piping, and ducting shall be shown, however, and shall be removable as a unit or as sub-units. Openings representing partial
34、removal of plating from bulkheads and shell shall be used to the degree necessary to provide visibility to all parts of the mock-up and accessibility during construction and modification. Alternative means to accomplish these objectives may be used. 3.2.3.2 Space relationship. 3.2.-3.3 Visibility. A
35、 clear view of the mock-up compartment may be provided by the 3.2.4 Type II. 3.2.4.1 General Type II shall be developed to permit actual demonstration of arrangement features as required to comply with 3.2.2. Mock-up equipment need not be electrically operable. When available, the type I mock-up sha
36、ll be used as a guide for design of a type II mock-up. All structure, equipment, systems, and all other items which occupy space in the shipboard compartment represented by the mock-up shall be included in the mock-up, unless otherwise specified herein or otherwise specifically approved by NAVSEA. i
37、n accordance with the following designations or better, as applied to general representative items : 3.2.4.2 Class. Unless otherwise specified (see 6.2.1) , components shall be fabricated (a) Class 1: Lighting. (b) Class 2: Hull equipment, machinery, valves, piping, gageboards. (c) Class 3 : Ladders
38、 , gratings , ducts , cabling, wireways , junction boxes , con- nectors, electrical switchboards, panels, controllers, :telephone booths, water fountains. 3.2.4.3 Lightin . Actual lighting conditions- as proposed for shipboard installation shall be provided. are normally illuminated by internal ligh
39、ting, simulated lighting methods may be used. Where instrument panels, scope faces, and other instrumented surfaces Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-23530A 20 7777906 0172b50 5 W MGM-235 30A(SH) 3.2.4.4 g. and support structures.
40、 3.2.4.5 Pipinp. cutout valve. to ensure adequate arrangements. hangers for systems subject to stressing shall be shown in proper locations. rawings. 3.2.4.7 Stowa es, work benches, and reventive maintenance work centers. Stowage lockers, cabinets 2nd brackets for st0Zg-h as repair life jackets, mas
41、ks, first aid kits, instruments, lifting gear, manuals, and other items required to be stored in the space to support operation and maintenance shall be shown. addition, work benches and preventive maintenance work center furniture such os desks and file cabinets shall be Shawn. tion, the co:tractor
42、-s7iarrperform a continuing evaluation of the proposed design and arrange- ments and make such changes considered necessary for a successful design. For each change or deviation incorporated, the contractor shall prepare and submit a departure notice to NAVSEA. The notice shall cite the specific dep
43、arture from the guidance furnished, describe the departure in detail, and provide reasons for these departures (see 6.2.2). Hull structure shall include shell plating, frames, bulkheads, stiffeners, Piping shall be shown except for gage piping downstream of the root Gage piping downstream of the roo
44、t cutout valve shall be Shawn when necessary Gageboards and gages shall be shown in all cases. Pipe Gageboards shall be oriented in accordance with manufacturers 3.2.4.6 Ga eboards. Insbces may be photographs or free hand sketches. rags, grease, In 3.3 De arture notice. During the development of moc
45、k-up drawings and during construc- 3.4 Construction. 3.4.1 Material. Material selection shall be made by the contractor, and may be wood, plastic, metal, cardboard, or other material consistent with the mock-up type and class re- quirements, satisfy mock-up objectives, and be economical in construct
46、ion and maintenance costs. Structural envelopes shall be capable of supporting attachments, where required, and maintaining design configuration without distortion. For type II mock-ups, decks, platforms, walkways, ladders, and similar items shall be capable of supporting equipment and personnel wit
47、hout failure or otherwise presenting a hazard during inspections. Also, for type II mock-ups, actual equipment, piping, gear, and fixtures representing the proposed design may be used in the event such items are readily available and their use will result in reproduc- tion cost savings. and equipmen
48、t compon%nFre$i:e “pull space for disassembly and maintenance, models shall be constructed so that such requirements can be simulated or demonstrated. Large components which require special handling gear shall be constructed so that they may be disassembled to demonstrate handling. demonstrations to
49、 be conducted in the mock-up. ship, mock-up scale for type I, compartment or space, and spaces immediately adjacent to a mock-up space. Areas within the mock-up space shall be identified by function and labeled accordingly. identified and marked. Equipment items shall be identified by function, with nomenclature included when space is available. labels. Piping shall be identified and marked with function, size, insulation thickness, and direc ion of flaw. paintimay bedhowever, as ?a aid to identification and to enhanc
