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Gear-noise: diagnosis & control banner

Gear-noise: diagnosis & control

Gear-noise: diagnosis & control banner
Self-paced Intermediate

Gear-noise: diagnosis & control

4(115)
583 views
₹ 499
96 min
Anytime
English
583 views
MILIND AMBARDEKAR
MILIND AMBARDEKARConsultant
  • 7-day money-back guarantee
  • Lifetime access
  • Certificate of completion

Why enroll

With modern vehicles demanding smoother and quieter transmissions, engineers must master both simulation-driven design and real-world noise diagnostics.

This course provides deep technical insights and practical methods to reduce gear noise at the source and along its transmission paths.

Participants will benefit from industry case studies, hands-on methodologies, and state-of-the-art noise control techniques used by leading automakers.

Whether you’re in design, testing, or troubleshooting, this course will sharpen your ability to diagnose and solve gear NVH challenges efficiently especially for Electric Vehicles where otherwise quiet running is affected by a tonal gear whine ..

Is this course for you?

You should take this if

  • You work in Automotive or Mechanics & Turbomachinery
  • You're a Noise & Vibration Engineering / Mechanical Engineering professional
  • You have some foundational knowledge in the subject
  • You prefer self-paced learning you can revisit

You should skip if

  • You're looking for an introductory overview course
  • You need a different specialisation outside Noise & Vibration Engineering
  • You need live interaction with an instructor

Course details

Gear noise is a common issue in automotive transmission and driveline systems that can affect vehicle comfort and perceived quality. It is usually caused by factors such as gear tooth errors, misalignment, improper lubrication, or vibration during gear meshing. Diagnosing gear noise involves identifying the exact source using techniques like vibration analysis, sound measurement, and gear inspection. Once the source is identified, engineers apply control methods such as improving gear design, optimizing tooth profiles, ensuring proper alignment, and enhancing damping and lubrication.

Effective diagnosis and control of gear noise help improve transmission performance, reduce unwanted sound, and provide a smoother and quieter driving experience.

Course suitable for

Key topics covered

- Gear noise perception inside the car cabin to be minimized

- Gear teeths impacts and the vehicle body

- NVH comparison of various driveline mechanisms

- clutch damping governed in cab boom of a bus

- Gear mesh stiffness variations

- industry practice for gear whine control

- Gear rattle

- Scissor gear

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

2 lectures1 hr 36 min
  1. Lecture-01
    60 min
  2. Lecture-02
    36 min

Opportunities that await you!

Career opportunities

Why people choose EveryEng

Industry-aligned courses, expert training, hands-on learning, recognized certifications, and job opportunities-all in a flexible and supportive environment.

What learners say about this course

Moin  Mujawar
Moin Mujawar CAE analyst
Apr 9, 2026

The Course structure was very constructive. Milind Sir has extensive experience in NVH & Acoustics domain. The way he explained NVH and acoustics concepts made even complex topics easy to understand and apply. His practical insights and structured approach added great value to the learning experience. I truly found this course to be highly informative and beneficial, and I would strongly recommend

Sakina Gulamhusein
Sakina Gulamhusein
May 3, 2026

Quick gripe first: Module 4 on damping theory ran a bit long, and the quiz felt padded. That said, the habit of calling out what actually changes between versions saved time; fewer “is this still true?” pauses. As a freelancer, I liked how it tied NVH choices back to outcomes in prod, not just math. The Chapter 3 example on order tracking—specifically the gear whine FFT waterfall—stuck with me because it mapped cleanly to decisions you’d make in the arch review. Labs didn’t assume much infra, which helped. It closed a gap between what I knew and what I assumed I knew about noise paths.

Bhavya Mathur
Bhavya Mathur Student
May 3, 2026

Quality stayed pretty even across modules, but module 4 dragged a bit and the labs assume you’ve already got MATLAB wired up. After that, it clicked. The “Modal Testing Basics” section with the door panel resonance example at ~180 Hz stuck with me, especially how they tied frequency response back to design tradeoffs. As someone bridging legacy code and newer infra, I kept mapping the NVH flow to how we think about obs in prod: measure first, then tweak arch. The transfer path analysis chapter felt like reading a clean PR—clear inputs, fewer guesses. I’ve already borrowed the checklist style for a CI gate around RPS regressions. Not flashy, but it fits day-to-day work.

Namdev Gaikwad
Namdev Gaikwad Student
May 3, 2026

Sat through plenty of advanced NVH courses, and this one actually bites. It doesn’t float at slide level; it pushes into how decisions land in prod when targets get ugly, and that kept me engaged between meetings. The bit that stuck was the order-tracking walkthrough in the powertrain chapter, where they map 2nd order boom during a 3,200 RPM coastdown and show how a mount tweak shifts the peak; I’ve already mirrored that flow in my repo for a current PR. There’s practical glue too: tying CAE outputs to test obs, plus a quick nod to how CI can gate NVH regressions before release. I wasn't sold on the intro pacing, and I wished there was more on road-induced NVH at low RPS, but mostly it held up. I've felt the gap close between sim and test, and my day-to-day loop is shorter with fewer re-runs.

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Questions and Answers

A: Chasing the wrong lever here burns time and risks louder part-load whine that customers actually hear. Reducing crowning can spike mesh stiffness variation at light loads, pushing static TE up even if full-load contact looks pretty. Rolling back some crowning and tuning at the dominant customer torque avoids amplifying the excitation instead of trying to bury it with bearings or housing hacks.

A: Picking the wrong mechanism sends you after filtration or washing fixes while the noise keeps climbing. Humid service with acceptable oil points to micro-pitting on the flanks when case depth or RA isn’t right, which roughens the surface and raises TE over mileage rather than causing sudden failures.

A: Skipping the signal chain or order resolution fails the test and guarantees arguments later. You need correlated order data under load, which means tach quality first, controlled torque second, and only then any subjective drive to anchor perception to physics.

A: Wrong choices here lock in noise you can’t tune out later or blow packaging. Raising overlap and matching microgeometry cuts excitation at the source, while grade alone or blunt stiffness changes don’t guarantee lower TE in the customer band.