1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW15082 Dropping Window System Manual Strength Test Copyright 2011 General Motors Company All Rights Reserved June 2011 Originating Department: North American Engineering Standards Page 1 of 8 1 Scope Note: Nothing in this standard supercedes applicab
2、le laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Purpose. To evaluate the strength of a vertical motion manual window system by subjecting it to specified loads through the crank handle. 1.2 Foreword. N
3、ot applicable. 1.3 Applicability. This procedure applies to all passenger cars, light duty trucks, and medium duty trucks having crank handle actuated, manual window systems. This includes window systems mounted in side doors, rear doors, station wagon end-gates, mid-gates, and body quarter areas. 2
4、 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. None 2.3 Additional References. Side Closures Subsystem Technical Specifications (SSTS) 3 Resources 3.1 Facilities. 3.1.1 Major
5、 Facility. GMNA Body Test Lab or similarly equipped test facility. 3.1.2 Minor Facility. Surface Plate/Bedplate. 3.2 Equipment. Note: The following list(s) include fixturing and instrumentation typically used by the GMNA Body Test Lab to perform this test. Other equipment may be substituted at the d
6、iscretion of the testing facility as long as it provides the same data and/or data record, with equivalent accuracy as specified herein or by the requestor. 3.2.1 Fixturing. 3.2.1.1 Door cart or rigid stanchions with appropriate clamps and mounting hardware (see Appendix A Figure A1). Note: As an al
7、ternative to the fixturing of 3.2.1.1, this test may be conducted with the door assembled on a body. 3.2.1.2 High strength cord for applying weights to the handle. 3.2.1.3 Tape measure or flexible ruler. 3.2.1.4 Window crank handle removal tool. Note: If testing a frameless door window system, discu
8、ss with the requesting engineer the need to create special fixturing to simulate the roof header or the need to perform the test on a body. 3.2.1.5 Screw clamps. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking perm
9、itted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15082 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 2 of 8 3.2.2 Instrumentation - Torque Wrench. 3.2.2.1 Torque wrench(es) with a capacity of 1.5 times each fastener torque referenced in 3.5.1. 3.2.2
10、.2 Calibrated weights and weight hanger. 3.3 Test Vehicle/Test Piece. 3.3.1 One (1) fully assembled door, including all sheet metal parts, reinforcements, welds, manual window regulator and components, manual window inside handle, and all window seals and stops. It is required that the test parts/as
11、sembly be dimensionally certified before testing is started. The window regulator shall be a new component that has not gone through other testing. 3.4 Test Time. The following is an estimate on the amount of time (work hours) needed to perform this procedure. Calendar time: 1 day Test hours: 2 hour
12、s Coordination hours: 2 hours Note: These time estimates are approximate averages. Actual times vary considerably depending on early component failures (and subsequent availability of replacement parts), testing to varying multiples of cycle lives, varying requirements for frequency of environmental
13、 test conditions, scheduling problems for test facilities, test equipment malfunctions, scheduling of overtime and/or multiple shifts, scheduling of “witnesses” for tests, actual readiness of test samples upon receipt, unique or additional requests for detailed test information, running multiple sam
14、ples (times shown are for one (1) system), etc. These times consider preparation and other downtime, actual test, and analysis of data in capturing a total calendar time. Report writing, approval, processing, etc., are not part of these times. 3.5 Test Required Information. The requesting engineer i
15、s responsible for providing specifications appropriate to the particular vehicle line being tested. Reference Side Closures Vehicle Technical Specifications/Subsystem Technical Specifications (VTS/SSTS) paragraph numbers, if applicable. Testing worst case scenarios may uncover some potential problem
16、s. Discuss with the requesting engineer if testing should include some worst case scenarios. Depending on which test is being performed and which level of parts or systems is being tested, consider if any of the following may apply: tolerance stack-ups, build variations, misalignment, minimum/maximu
17、m fastener torque(s), lubrication, environmental extremes, location of customer representative load application, symmetry (Left Hand vs. Right Hand), color, mold or die source, etc. The following specifications or information are required to run this test: 3.5.1 Specified torque loading. 3.5.2 Windo
18、w position during load application (up/down). 3.5.3 Overload/ultimate strength. 3.5.4 Environmental conditions. 3.6 Personnel/Skills. Prior experience in setting up and running similar tests, and experience in the use of the referenced test equipment, is critical to achieving the estimated times sho
19、wn in “3.4 Test Time”. 4 Procedure 4.1 Preparation. 4.1.1 Sample Inspection. The test and requesting engineers should inspect the test items to insure all material listed in 3.3 is of correct design level and assembled properly. 4.1.2 Sample Preparation. This test is normally run on the test subject
20、 in an “as received” condition. If it is requested to be run in a specifically adjusted condition, follow the applicable procedure(s). 4.1.2.1 Mark all window system fasteners and attachments to check for movement and rotation during test. 4.1.3 Facilities and/or Equipment Preparation. Record the in
21、strumentation calibration information on Appendix A Calibration Data Sheet A1 or an equivalent document. 4.2 Conditions. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WOR
22、LDWIDE ENGINEERING STANDARDS GMW15082 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 3 of 8 4.2.1 Environmental Conditions. Unless otherwise specified in this documents text or by the requesting engineer, the typical environmental conditions for this test are the temperatur
23、e, humidity and pressure at the major test facility (3.1.1). Unless otherwise noted in Subsystem Technical Specification (SSTS) or Component Technical Specification (CTS) documents, these conditions are typically 22 3 C, relative humidity of 40% 20%, and atmospheric pressure equivalent to the local
24、barometric pressure (which is variable during any given day and from day to day). 4.2.2 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 4.3 Instructions. 4.3.1
25、 Setup Instructions. 4.3.1.1 Perform any functional/operational tests/evaluations as requested. These functional checks may include any manual window handle system test such as minimum handle torque required, handle turns from full up to full down, etc. These same functional checks will be performed
26、 again after the Dropping Window System (Manual) Strength Test is completed to verify any degradation that may have resulted. Specifically cycle the window system at least 5 times. As applicable, note any irregular sounds or erratic operation indicating a potential problem with design, manufacture,
27、or assembly and verify these observations with the requesting engineer. 4.3.1.2 Clamp the door securely in body position. Roll the window to the full up position. 4.3.1.3 Set the window handle on its spindle to as near a horizontal position as possible, and in such a way that a downward force on the
28、 handle will push the window into the upper seal. This is done so that weights can be hung perpendicular to the handle and a measurable torque can be achieved. 4.3.1.4 Measure and record the distance between the centerline of the window handle spindle and the center of the handle knob where the weig
29、ht is to be applied. See Figure A1. 4.3.1.5 Once the load distance (from step 4.3.1.4) is measured, calculate the amount of weight required to achieve the specified torque. 4.3.2 Test Operation Instructions. Note: The same door and regulator setup for each door can be used to perform the pre-load, t
30、he torque load and the torque overload testing. In the case, where both tests are performed, the torque load test shall be performed first, then the torque overload and then the pre-load test. See SSTS, etc., which tests have to be performed. 4.3.2.1 For torque load test, remove handle from regulato
31、r spindle and block the window in the full up position. Photo included in Figure A1. 4.3.2.2 Torque Load Test. Apply a torque load (according to SSTS, etc.) to the regulator spindle for a 5 s duration for 5 times in both directions, with the first operation being in the downward direction. Remove th
32、e torque and repeat all functional checks which were performed in step 4.3.1.1, and note any degradation and/or rivet or attachment loosening that may have occurred. 4.3.2.3 Torque Overload Test. Apply a torque overload (according to SSTS, etc.) applied through the spindle in both directions for a d
33、uration of 5 s duration in each direction with the first operation being in the downward direction. Remove the torque and repeat all functional checks which were performed in step 4.3.1.1, and note any degradation and/or rivet or attachment loosening that may have occurred. 4.3.2.4 For pre-load test
34、, add weights to the handle (as shown in Figure A2) in gradual increments until the specified torque is achieved (see 3.5). Note: The weights must hang approximately perpendicularly from the handle. As more weight is added, it may be necessary to reset the handle on its spindle to maintain this perp
35、endicular orientation. 4.3.2.5 Remove the weights and repeat all functional checks which were performed in step 4.3.1.1 and note any degradation and/or rivet or attachment loosening that may have occurred. 4.3.2.6 Repeat steps 4.3.1.3, 4.3.2.1 and 4.3.2.2, as necessary, to evaluate both full up and
36、full down window positions. 4.3.2.7 As an optional test, additional torque may be applied to the handle (at either specified window position) in gradual increments until damage to the window system or loss of function occurs. This is to be only done after all other tests are completed on the window
37、regulator. 4.3.3 Post Test Instructions. Check for rivet and attachment looseness or movement. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDAR
38、DS GMW15082 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 4 of 8 Note: Every post-test operation/measurement /inspection must typically have a pre-test equivalent to have any meaning or significance. A crack detected at end of test means nothing unless there is pre-test do
39、cumentation verifying no crack existed prior to start of test. 5 Data The attached data sheets are provided for convenience only, and are not required to be used but any alternative data sheet(s) should record equivalent data. 5.1 Calculations. Not applicable. 5.2 Interpretation of Results. Unless o
40、therwise requested in 3.5, no specific format for data presentation is required (other than as may be required by various report record systems). 5.3 Test Documentation. The attached data sheet is to be used to record and report the data from the testing. See Appendix A Data Sheet A2. 6 Safety This
41、standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability o
42、f regulatory limitations prior to use. Prior experience in setting up and running similar tests and experience in the use of the referenced test equipment will minimize potential for accidents and injuries. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. CTS Component
43、 Technical Specifications MPD Master Process Document SSTS Subsystem Technical Specifications VTS Vehicle Technical Specifications 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to GMW15082 9 Release and Revisions This standard was originated i
44、n February 2006. It was first approved by the Global Glass Guidance SSLT in July 2006. It was first published in August 2006. Issue Publication Date Description (Organization) 1 AUG 2006 Initial publication. 2 JUN 2011 Five year refresh. Corrected references in sections 2.3 and 7.2. Changed “TWO” to
45、 “Activity Request No.” on Data Sheet A2. (Glass Guidance GSSLT) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15082 Copyright 2011 Gen
46、eral Motors Company All Rights Reserved June 2011 Page 5 of 8 Appendix A Data Sheet A1: Instrument Calibration Report No. _ Submit this data sheet with the other data sheets when the information is not otherwise preserved in the testing laboratory records. Test Procedure No. _ Test Date _ Instrument
47、 Description Instrument Number Calibration Date Next Calibration Due Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Recorded by Date (signature) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted wi
48、thout license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15082 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 6 of 8 Data Sheet A2: Dropping Window System (Manual) Strength Test Body Make: Test Engineer: Body Model and Year: Technician: Door: Activity Request No.: D
49、ate: Temperature Condition: Window Tested Front Left Front Right Rear Left Rear Right Window Test Position Specified Torque N Test Temperature C Distance between centerline of window handle spindle and handle knob mm Weight required to achieve specified torque kg Did rivets/attachments loosen/move? W
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