汽车座椅异响评估测试方法-中英文Squeak and Rattle Evaluation Testing of Seats.p.pdfVIP

TITLE: Squeak and Rattle Evaluation Testing of Seats CETP: 01.10-L-413 Supersedes: None 201004 Page 1 of 36 1.0 INTRODUCTION st The goal of this procedure is to perform Squeak Rattle noise evaluation of Seats (1 , 2nd, and 3rd row) during the DV/PV testing phase for Cars and Trucks by using subjective listening and objective time varying N10 loudness measurements in sones. 1.1 COMMONALITY. The test may be performed at Ford Motor Company test facilities or at suppliers using equivalent equipment and sound measurement tools. For the objective measurements Head Acoustics Artemis system, MTS I-DEAS, or Bruel Kjaers Sound Quality type 7698 are recommended. 1.2 Proposed revisions to this procedure must be submitted per FAP03-179. 2.0 INSTRUMENTATION 2.1 The equipment listed in Table 1, or equivalent, is needed to perform the sound recording portion of this test. 2.2 All test measurement equipment must be calibrated and maintained per FAP03-015, Control, Calibration, and Maintenance of Measurement and Test Equipment. 2.3 All applicable safety guidelines and procedures must be followed. 2.4 All instruments must be calibrated within twelve months of the test with reference standards calibrated on 12 month intervals, using primary standards directly traceable to the NIST. Required pre-test calibration is described in Section 4.1. 2.5 Accelerometers that are used must be able to operate in the range of -20 to +180 degrees F without loss of accuracy. 2.6 Dynamic analyzer for vibration and sound measurement analysis and recordin