DOT 49 CFR PART 587-2010 DEFORMABLE BARRIERS.pdf

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1、299 Natl Highway Traffic Safety Admin., DOT 587.5 585.117 Records. Each manufacturer must maintain records of the Vehicle Identification Number for each vehicle for which in-formation is reported under 585.116(b)(2) until December 31, 2018. PART 586 RESERVED PART 587DEFORMABLE BARRIERS Subpart AGene

2、ral Sec. 587.1 Scope. 587.2 Purpose. 587.3 Application. Subpart BSide Impact Moving Deformable Barrier 587.4 Definitions. 587.5 Incorporated materials. 587.6 General description. 587.7587.10 Reserved Subpart COffset Deformable Barrier 587.11 Reserved 587.12 Incorporation by reference. 587.13 General

3、 description. 587.14 Deformable face component dimen-sions and material specifications. 587.15 Verification of aluminum honeycomb crush strength. 587.16 Adhesive bonding procedure. 587.17 Construction. 587.18 Dimensions of fixed rigid barrier. 587.19 Mounting. FIGURES TO SUBPART C AUTHORITY: 49 U.S.

4、C. 322, 30111, 30115, 30117, and 30166; delegation of authority at 49 CFR 1.50. SOURCE: 55 FR 45779, Oct. 30, 1990, unless otherwise noted. EDITORIAL NOTE: Nomenclature changes to part 587 appear at 69 FR 18803, Apr. 9, 2004. Subpart AGeneral 587.1 Scope. This part describes deformable im-pact barri

5、ers that are to be used for testing compliance of motor vehicles with motor vehicle safety standards. 65 FR 17198, Mar. 31, 2000 587.2 Purpose. The design and performance criteria specified in this part are intended to describe measuring tools with suffi-cient precision to give repetitive and correl

6、ative results under similar test conditions and to reflect adequately the protective performance of a motor vehicle or item of motor vehicle equip-ment with respect to human occupants 587.3 Application. This part does not in itself impose duties or liabilities on any person. It is a description of t

7、ools that are used in compliance tests to measure the per-formance of occupant protection sys-tems required by the safety standards that refer to these tools. It is designed to be referenced by, and become part of, the test procedures specified in motor vehicle safety standards such as Standard No.

8、208, Occupant Crash Pro-tection, and Standard No. 214, Side Im-pact Protection. 65 FR 17199, Mar. 31, 2000 Subpart BSide Impact Moving Deformable Barrier 587.4 Definitions. All terms defined in section 102 of the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1391) are used in their statut

9、ory meaning. 587.5 Incorporated materials. (a) The drawings and specifications referred to in this regulation that are not set forth in full are hereby incor-porated in this part by reference. These materials are thereby made part of this regulation. The Director of the Federal Register has approved

10、 the materials in-corporated by reference. For materials subject to change, only the specific version approved by the Director of the Federal Register and specified in the regulation are incorporated. A notice of any change will be published in the FEDERAL REGISTER. As a convenience to the reader, t

11、he materials incor-porated by reference are listed in the Finding Aid Table found at the end of this volume of the Code of Federal Reg-ulations. (b) The drawings and specifications incorporated in this part by reference are available for examination in the general reference section of Docket 79 04,

12、Docket Section, National Highway Traffic Safety Administration, Room VerDate Mar2010 10:10 Dec 13, 2010 Jkt 220218 PO 00000 Frm 00309 Fmt 8010 Sfmt 8010 Y:SGML220218.XXX 220218wwoods2 on DSK1DXX6B1PROD with CFRProvided by IHSNot for ResaleNo reproduction or networking permitted without license from

13、IHS-,-,-300 49 CFR Ch. V (10110 Edition) 587.6 5109, 400 Seventh Street, SW., Wash-ington, DC 20590. Copies may be ob-tained from Rowley-Scher Reprographics, Inc., 1111 14th Street, NW., Washington, DC 20005, telephone (202) 6286667 or (202) 4088789. The draw-ings and specifications are also on file

14、 in the reference library of the Office of the Federal Register, National Ar-chives and Records Administration, Washington, DC. 587.6 General description. (a) The moving deformable barrier consists of component parts and com-ponent assemblies which are described in drawings and specifications that a

15、re set forth in this 587.6 of this chapter (incorporated by reference; see 587.5). (b) The moving deformable barrier specifications are provided in the draw-ings shown in DSL1278 through DSL 1287, except DSL1282, and the drawing shown in DSL1290 (DSL1278 through DSL1287, except for DSL1282, and DSL1

16、290 are incorporated by ref-erence; see 587.5). (1) The specifications for the final as-sembly of the moving deformable bar-rier are provided in the drawings shown in DSL1278, dated June 2002. (2) The specifications for the frame assembly of the moving deformable barrier are provided in the drawings

17、 shown in DSL1281, dated August 20, 1980. (3) The specifications for the face of the moving deformable barrier are pro-vided in the drawings shown in DSL 1285, dated October 1991, and DSL1286, dated August 20, 1980. (4) The specifications for the ballast installation and details concerning the balla

18、st plate are provided in drawings shown in DSL1279 and DSL1280, both dated August 20, 1980. (5) The specifications for the hub as-sembly and details concerning the brake are provided in drawings shown in DSL1283, dated October 1991. (6) The specifications for the rear guide assembly are provided in

19、draw-ings shown in DSL1284, dated August 20, 1980. (7) The specifications for the research axle assembly are provided in drawings shown in DSL1287, dated October 1991. (8) The specifications for the compli-ance axle assembly are provided in drawings shown in DSL1290, dated Oc-tober 1991. (c) In conf

20、iguration 2 (with two cam-eras and camera mounts, a light trap vane, and ballast reduced), the moving deformable barrier (crabbable axle), in-cluding the impact surface, supporting structure, and carriage, weighs 3,015 pounds, has a track width of 74 inches, and has a wheelbase of 102 inches. (d) In

21、 configuration 2, the moving de-formable barrier has the following cen-ter of gravity: X=44.2 inches rear of front axle Y=0.3 inches left of longitudinal center line Z=19.7 inches from ground. (e) The moving deformable barrier has the following moment of inertia: Pitch=1669 ft-lb-sec2Roll=375 ft-lb-

22、sec2Yaw=1897 ft-lb-sec255 FR 45779, Oct. 30, 1990; 56 FR 47011, Sept. 17, 1991, as amended at 57 FR 7558, Mar. 3, 1992; 68 FR 44472, July 29, 2003 587.7587.10 Reserved Subpart COffset Deformable Barrier SOURCE: 65 FR 17199, Mar. 31, 2000, unless otherwise noted. 587.11 Reserved 587.12 Incorporation

23、by reference. Society of Automotive Engineers (SAE) Recommended Practice J211/1 Rev. MAR 95, Instrumentation for Im-pact Tests-Part 1Electronic Instru-mentation, is incorporated by reference in 587.15 in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. A copy may be obtained from SAE at Society of

24、 Auto-motive Engineers, Inc., 400 Common-wealth Drive, Warrendale, PA 15096. A copy of the material may be inspected at NHTSAs Docket Section, 400 Sev-enth Street, S.W., room 5109, Wash-ington, DC, or at the National Archives and Records Administration (NARA). For information on the availability of

25、this material at NARA, call 202741 6030, or go to: http:/www.archives.gov/ federallregister/ codeloflfederallregulations/ ibrllocations.html. VerDate Mar2010 10:10 Dec 13, 2010 Jkt 220218 PO 00000 Frm 00310 Fmt 8010 Sfmt 8010 Y:SGML220218.XXX 220218wwoods2 on DSK1DXX6B1PROD with CFRProvided by IHSNo

26、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-301 Natl Highway Traffic Safety Admin., DOT 587.15 587.13 General description. The offset deformable barrier is com-prised of two elements: a fixed rigid barrier and a deformable face (Figure 1). The fixed rigid barrier

27、 is adequate to not deflect or displace more than 10 mm during the vehicle impact. The de-formable face consists of aluminum honeycomb and aluminum covering. 587.14 Deformable face component dimensions and material specifica-tions. The dimensions of the deformable face are illustrated in Figure 1 of

28、 this subpart. The dimensions and materials of the individual components are listed separately below. All dimensions allow a tolerance of 2.5 mm (0.1 in) unless otherwise specified. (a) Main honeycomb block. (1) Dimensions. The main honeycomb block has a height of 650 mm (25.6 in) (in the direction

29、of honeycomb ribbon axis), a width of 1,000 mm (39.4 in), and a depth of 450 mm (17.7 in)(in the direc-tion of honeycomb cell axis). (2) Material. The main honeycomb block is constructed of the following material. The honeycomb is manufac-tured out of aluminum 3003, with a foil thickness of 0.076 mm

30、 (0.003 in) 0.004 mm (0.002 in) a cell size of 19.14 mm (0.75 in), a density of 28.6 kg/m3(1.78 lb/ ft3) 2kg/m3(0.25 1b/ft3), and a crush strength of 0.342 MPa (49.6 psi) + 0%10%, measured in accordance with the certification procedure described in 587.15. (b) Bumper element honeycomb. (1) Dimension

31、s. The bumper element honeycomb has a height of 330 mm (13 in)(in the direction of honeycomb rib-bon axis), a width of 1,000 mm (39.4 in), and a depth of 90 mm (3.5 in) (in the di-rection of honeycomb cell axis). (2) Material. The bumper element honeycomb is constructed of the fol-lowing material. T

32、he honeycomb is manufactured out of aluminum 3003, with a foil thickness of 0.076 mm (0.003 in) 0.004 mm (0.0002 in), a cell size of 6.4 mm (0.25 in) 1 mm (0.040 in), a den-sity of 82.6 kg/m3(5.15 lb/ft3) 3 kg/m3(0.19 lb/ft3), and a crush strength of 1.711 MPa (248 psi) + 0% 10%, meas-ured in accord

33、ance with the certifi-cation procedure described in 587.14. (c) Backing sheet. (1) Dimensions. The backing sheet has a height of 800 mm (31.5 in), a width of 1,000 mm (39.4 in), and a thickness of 2.0 mm (0.08 in) 0.1 mm (0.004 in). (2) Material. The backing sheet is manufactured out of aluminum 525

34、1/ 5052. (d) Cladding sheet. (1) Dimensions. The cladding sheet of the main honeycomb block has a total length of 1,700 mm (66.9 in), a width of 1,000 mm (39.4 in), and a thickness of 0.81 mm (0.03 in) 0.07 mm (0.003 in). It is shaped as indicated in Figure 1. (2) Material. The cladding sheet of the

35、 main honeycomb block is manufac-tured out of aluminum 5251/5052. (e) Bumper element honeycomb fac-ing sheet. (1) Dimensions. The bumper facing sheet has a height of 330 mm (13 in), a width of 1,000 mm (39.4 in), and a thick-ness of 0.81 mm (0.03 in) 0.07 mm (0.003 in). (2) Material. The bumper elem

36、ent honeycomb facing sheet is manufac-tured out of aluminum 5251/5052. (f) Adhesive. The adhesive used throughout is a two-part polyurethane. (such as Ciba-Geigy XB5090/1 resin with XB5304 hardener, or equivalent). 587.15 Verification of aluminum hon-eycomb crush strength. The following procedure is

37、 used to as-certain the crush strength of the main honeycomb block and the bumper ele-ment honeycomb, as specified in 587.14(a)(2) and 587.14(b)(2). (a) Sample locations. To ensure uni-formity of crush strength across the whole of the deformable face, 8 samples are taken from 4 locations evenly spac

38、ed across the honeycomb material. Seven of these 8 samples must meet the crush strength requirements when test-ed in accordance with the following sections. The location of the samples depends on the size of the honeycomb material being tested. Four samples, each measuring 300 mm (11.8 in) 300 mm (1

39、1.8 in) 25 mm (1 in) thick are cut from the honeycomb material. (See Figure 2 for how to locate these sam-ples on two different sizes of honey-comb material.) Each of these larger samples is cut into samples of the size specified in 587.15(b). Verification is based on the testing of two samples VerD

40、ate Mar2010 10:10 Dec 13, 2010 Jkt 220218 PO 00000 Frm 00311 Fmt 8010 Sfmt 8010 Y:SGML220218.XXX 220218wwoods2 on DSK1DXX6B1PROD with CFRProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-302 49 CFR Ch. V (10110 Edition) 587.16 from each of the four loc

41、ations. The other two samples are retained for fu-ture verification, if necessary. (b) Sample size. Samples of the fol-lowing size are used for testing. The length is 150 mm (5.9 in) 6 mm (0.24 in), the width is 150 mm (5.9 in) 6 mm (0.24 in), and the thickness is 25 mm (1 in) 2 mm (0.08 in). The wa

42、lls of incom-plete cells around the edge of the sam-ple are trimmed as follows (See Figure 3). In the width (W) direction, the fringes (f) are no greater than 1.8 mm (0.07 in); in the length (L) direc-tion, the fringes (e) are at least half the length of one bonded cell wall (d) (in the ribbon direc

43、tion). (c) Area measurement. The length of the sample is measured in three loca-tions, 12.7 mm (0.5 in) from each end and in the middle, and recorded as L1, L2, and L3 (Figure 3). In the same man-ner, the width is measured and re-corded as W1, W2, and W3 (Figure 3). These measurements are taken on t

44、he centerline of the thickness. The crush area is then calculated as: A(L1 L2 L3)X(W1 W2 W3)=+ + +33(d) Crush rate and distance. The sam-ple is crushed at a rate of not less than 5.1 mm/min (0.2 in/ min) and not more than 7.6 mm/min (0.29 in/min). The min-imum crush distance is 16.5 mm (0.65 in). Fo

45、rce versus deflection data are collected in either analog or digital form for each sample tested. If analog data are collected, a means of con-verting the data to digital data must be made available. All digital data are collected at a rate consistent with SAE Recommended Practice J211/1 Rev. MAR 95

46、 (see 587.12). (e) Crush strength determination. Ig-nore all data prior to 6.4 mm (0.25 in) of crush and after 16.5 mm (0.65 in) of crush. Divide the remaining data into three sections or displacement inter-vals (n = 1, 2, 3) (see Figure 4) as fol-lows. Interval one is from 6.49.7 mm (0.250.38 in) d

47、eflection, inclusive. In-terval two is from 9.713.2 mm (0.380.52 in) deflection, exclusive. Interval three is from 13.216.5 mm (0.520.65 in) de-flection, inclusive. Find the average for each section as follows: F(n)F(n)1 . F(n)mm;n=+= 13,2,where m represents the number of data points measured in eac

48、h of the three intervals. Calculate the crush strength of each section as follows: S(n)F(n)A;n=13,2,(f) Sample crush strength specification. For a honeycomb sample to meet crush strength requirements, the following condition must be met. For the 0.342 MPa (49.6 psi) material, the strength must be eq

49、ual to or greater than 0.308 MPa (45 psi) but less than or equal to 0.342 MPa (49.6 psi) for all three com-pression intervals. For the 1.711 MPa (248 psi) material the strength must be equal to or greater than 1.540 MPa (223 psi) but less than or equal to 1.711 MPa (248 psi) for all three compression in-tervals. (g) Testing hardware. (1) The hardware us