Skip to content Skip to main menu
Your Online Mechanic
Menu
  • Home
  • Tools and Equipment
  • Servicing Hints
  • Engine
    • Diesel Engine
    • Diesel Engine Control System
    • Gasoline Engine
    • Gasoline Engine Control System
    • Ignition
  • Systems
    • Audio System
    • Charging System
    • Cruise Control System
    • Door lock system
    • Heater and Aircondition System
    • Lighting System
    • Power Window System
    • SRS Airbag System
    • Starter System
    • Theft Deterent System
    • Wiper & Washer
    • Electrical System
  • Chasis
    • Automatic Trans
    • Brakes
    • Manual Trans
    • Steering
    • Suspensions
  • Diagnosis
    • Troubleshooting
    • Vibration And Noise

Automotive Fan Noise

Posted on December 21, 2012 by b1r2i3a4n5
share

Fan noise produced by the cooling fans for the radiator, alternator, and others, become louder in proportion to their rpm.
The fan noise can be produced by fan blades cutting through the air, or by air (more…)

Posted in Vibration And Noise
Tagged with automotive, Fan, Noise

Other Components of Engine Vibration and Sounds

Posted on December 21, 2012 by b1r2i3a4n5

Engine Mounts
Although engine mounts are relatively small, they are important in controlling NVH.
They link the vehicle body to the engine, the largest source of vibration. It is through these mounts (more…)

Posted in Vibration And Noise
Tagged with Components, Engine, Sounds, Vibration

Engine Intake and Exhaust System Vibration and Sounds

Posted on December 21, 2012 by b1r2i3a4n5

Intake System
Intake noise includes the pulsating sound of the air taken in and the resonance sounds.
A pulsating sound has a relatively high frequency. It is determined by the air volume, shape of the (more…)

Posted in Vibration And Noise
Tagged with Engine, exhaust, Intake, Sounds, System, Vibration

Engine Imbalance due to Inertia

Posted on December 21, 2012 by b1r2i3a4n5

Vibrating forces due to inertia forces are caused by the crank mechanism and imbalance in the rotating object.
Among the inertia-caused vibrating forces, reciprocating mass can be balanced to a certain (more…)

Posted in Vibration And Noise
Tagged with Engine, Imbalance due, Inertia

Torque Fluctuation due to Combustion

Posted on December 21, 2012 by b1r2i3a4n5

The vibrating force due to the combustion pressure causes torque fluctuation in the crankshaft, which is transmitted to the drive train.
It also acts upon the cylinder block as a reaction force and causes (more…)

Posted in Vibration And Noise
Tagged with Combustion, Fluctuation, Torque

Source of Automotive vibration Generation

Posted on December 21, 2012 by b1r2i3a4n5

As typical examples of vibrating force in a vehicle, there are the following: combustion pressure or torque fluctuation in the engine, unbalanced tires, rough road, imbalance or joint angle in the propeller (more…)

Posted in Vibration And Noise
Tagged with automotive, Generation, Source, Vibration

Transmission and prevention Vibration and Noise

Posted on December 21, 2012 by b1r2i3a4n5

Methods for preventing vibration or noise are as follows:
Removing the vibrating force
Stopping the resonance
Stopping the transmission
Preventing vibration and noise
etc.
Vibration or noise can (more…)

Posted in Vibration And Noise
Tagged with Noise, prevention, Transmission, Vibration

Method of Indicating Vibration, Sound, and Noise

Posted on December 21, 2012 by b1r2i3a4n5

Transmitting system
A vibration caused by a vibrating force and amplified by resonance causes the O-ring of the exhaust pipe and engine mounts to vibrate, transmitting a noise to the cabin. The passage (more…)

Posted in Vibration And Noise
Tagged with Noise, sound, Vibration

Automotive Resonating System

Posted on December 21, 2012 by b1r2i3a4n5

If vibrating force is applied to the spring and weight as shown in the figure, vibration rapidly becomes large when the frequency of the applied force reaches a certain frequency level. This phenomenon (more…)

Posted in Vibration And Noise
Tagged with automotive, Resonating, System

How are Vibration and Noise Transmitted

Posted on December 21, 2012 by b1r2i3a4n5

Basically, vibration and sound are transmitted in the same way. Let us take a look at the process of how a vibration is generated and transmitted to the human body as a vibration or a sound. Transmission (more…)

Posted in Vibration And Noise
Tagged with Noise, Transmitted, Vibration

Posts navigation

← Older posts
Newer posts →
   
© 2018 Your Online Mechanic
| Disclaimer | Privacy Policy