Noise, Vibration, and Harshness i TABLE OF CONTENTS INTRODUCTION 1 OBJECTIVES 1 ACRONYMS 2 LESSON 1 EVALUATING NVH CONCERNS 5 PRELIMINARY INFORMATION 5 Pre-road Test Inspection 7 Vehicle Road Test 8 Road Test Methods 9 Diagnostic Worksheet Page 1 10 Diagnostic Worksheet Page 2 11 LESSON 2 DIAGNOSING WHEEL AND TIRE VIBRATION 13 WHEELS AND TIRES 13 NVH TERMS AND THEORY 14 Vibration …

Noise and vibration normally exist in the operation of a vehicle. Automotive Noise, Vibration and Harshness. HOW DO YOU STAY UP-TO-DATE AND SECURE TIMELY INFORMATION IN YOUR TECHNOLOGY FOCUS AREA Look to SAE International as your most critical resource for lifelong training and professional development.
1-1 We experience vibration by our senses of touch and vision.



Overview; Certificate; This certificate program provides fundamental principles of acoustics and vibration theories, with emphasis on the applications of these principles to practical vehicle NVH problems.
NVH (Noise, Vibration and Harshness) is the term used when discussing these conditions. NOISE, VIBRATION AND HARSHNESS TECHNOLOGY EDUCATION & TRAINING GUIDE January – December 2018 TRAINING.SAE.ORG . Noise, Vibration, and Harshness (NVH) concerns • Identify the different types of NVH • Identify the steps of the NVH systematic diagnostic approach • Identify the road test procedures necessary to isolate a noise or vibration • Calculate NVH frequencies necessary for component classification • Identify test equipment and tools used in Noise, Vibration and Harshness Fig. When they become unpleasant to the senses they may be regarded as problems by the customer.

We experience sounds by our sense of …

In this issue of the Noise, Vibration, and Harshness …