Drivetrain evaluation

Evaluate five potential drivetrain changes to reduce system noise.

Role

Mechanical Engineering Co-Op

Team

Hydrow Hardware

Engineering

Company

Hydrow, Inc.

Date

Jan. 2020

Constraints

• Must consider short & long term solutions

• Must reduce noise by reducing decibels and improving sound quality

• Drivetrain must not slip when a high impulse is applied

Research

I used online resources such as drivetrain design manuals to determine possible drivetrain modifications that would reduce audible noise during a stoke of the Hydrow. I also coordinated with belt suppliers and our manufacturing partners to determine the best path forward in the short & long term. Potential solutions included a reduction in manufacturing variances and changes in belt supplier, belt coating, and belt type. 

TESTING

Testing was performed on all changes prior to implementation determine their overall effect on system noise including decibels produced and sound quality.

Belt 1 - Decibels

Belt 2 - Decibels

Final Design

Two drivetrain changes were implemented during my co-op, while two other changes have showed promise and, after more testing, may replace the current drivetrain to further reduce system noise.