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Shock Damper
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Here are some more information for Shock Damper:

It's easy to notice if your tires have uneven or excessive tread wear, spot a tell-tale coolant leak under your car or hear that grinding sound that tells you your brake pads need replacement. Shocks and struts are different.

Like other important vehicle systems, they do wear out over time, but often so gradually you don't even notice. They're also more difficult to inspect. But, because they're an important part of your car's suspension system, your shocks and struts should be inspected for wear and tear at least twice a year. And, you can depend on your local Michigan or Ohio tire store to have ASE Certified Technicians with the training, tools and quality replacement shocks and struts from Tenneco to do the job right.

Suspension Basics

Most suspension systems have three primary components: coil springs, anti-sway bars and shocks or struts. Coil springs support most of the weight of the vehicle, maintain proper ride height and also help resist pitch and dip when you accelerate or stop. Anti-roll bars, sometimes called anti-sway bars, connect the left and right suspension systems to the frame and help resist sway or body roll during cornering.

A shock absorber, also called a damper, is an oil or gas filled tube that helps the coil springs and anti-roll-bars work more effectively by preventing unwanted motion in the suspension system. It converts kinetic energy created by the up and down motion of the tires into heat energy by forcing fluid or gas through a series of control valves inside itself. A strut is a single, self contained unit that integrates a shock absorber within a coil spring. In addition to absorbing road shock, noise and vibration, shocks or struts play an important role in keeping your tires firmly planted to the road every time you accelerate, stop, corner or hit a bump.

When is it Time for New Shocks and Struts?

Most vehicle owner manuals recommend frequent shock and strut inspection and replacement every 50,000 miles, depending on your personal driving habits. However, any of the following warning signs can tell you if your shocks and struts might need replacement.

• Pitching or dipping - Coil springs can't do it all. If you experience excessive pitching or dipping whenever you accelerate or stop, your shocks or struts may need replacement.
• Body roll - Anti-roll or sway bars also can't do it all. If you experience excessive body roll as you go around corners, it's time to check your shocks or struts.
• Tire bounce or hop - If your tires bounce, hop or lose contact with the road after you hit a bump, it's a sign your shocks or struts may need replacement.
• Fluid leaks - As shocks or struts wear, the seals that contain the fluid or gas inside them can begin to leak. Streaks of fluid that look like tears on the outside of the shock or strut tube are a sure sign of a fluid leak.
• Excessive tire wear - Cupping is a type of excessive tire wear associated with worn out shocks or struts. If you see a diagonal wear pattern across the tread of a tire, worn-out shocks or struts may be the problem.

Why spend your time bouncing through even minor bumps in the road, swaying through corners and replacing your tires more frequently then you should? Visit your local Ohio or Michigan tire store and have an ASE Certified Technician inspect and replace your shocks or struts if necessary. You'll not only enjoy a smoother more comfortable ride, you'll also maximize the performance and tread life of your tires.

Belle Tire is prepared to apply its expertise and support to provide consumers with discount tires, more auto care offerings and the best customer service possible. People have trusted Belle Tire for the best value since 1922. Now Belle Tire is working even harder to bring you the best tire price, period! And get you Out-The-Door with more value, services and protection the other stores can't offer at any price! To learn more about Belle Tire, please visit www.BelleTire.com.

About Wally Koster, Freelance Writer

Wally Koster is a retired marketing and advertising executive with more than 40 years experience in the automotive industry. He now enjoys life as a freelance writer for Belle Tire and is a published philatelist. http://www.belletire.com

Shock Absorbers

A shock absorber could be defined as a mechanical device that is designed to dampen shock impulses, thus dissipating  kinetic energy. Pneumatic and hydraulic shock absorbers constitute a cylinder with a sliding piston inside it. The cylinder is filled with hydraulic fluid or air. This combination of fluid-filled piston and cylinder is known as a dashpot. Shock absorbers serve a number of vital applications and are an important component of automobile and motorcycle suspensions, aircraft landing gear, and acts as supports for different kinds of industrial machines. They help in cushioning vehicles on uneven terrains.

Listed below are the various kinds of Shock absorbers:

• The air shock absorber makes use of compressed air to smooth out excessive suspension movement. This kind of shock absorber helps heavily loaded vehicles to have better control on the road.

 

• The spring is combined with the shock absorber to create a coil over the shock absorber. This kind of shock absorber is suitable for different types of roads and offers the vehicle good control during cornering and braking. The spring's capability to compress and stretch enables a smoother, pleasurable ride.

 

• The damper shock absorber could be easily adjusted to deal with specific road conditions. The fluid in this type of shock absorber could be increased or reduced with the help of a valve. The adjustability provided by damper shock absorber gives vehicles good balance.

 

• The twin tube shock absorber makes use of oil. It consists of an outer chamber filled with air, that gets compressed as the oil is forced through the chamber. When the piston pulls out, the oil encounters resistance as it flows through the piston, as a result of which damping is generated.

 

• The mono tube shock absorber is equipped with a larger piston than most other shock absorbers. It has the ability to automatically adjust to different kinds of road conditions and could be installed at varied angles. The mono tube shock absorber is made of aluminium and therefore, it is lighter than other kinds of shock absorbers and also enables faster reduction of heat.

 

About the Author

The author is associated with http://www.ipfonline.com . http://www.ipfonline.com allows you to  efficiently and quickly search through product profiles of engineering and industrial products from Indian manufacturers.

Are damping ratios dependent on frequency?

in a shock absorber, is the damping ratio dependent on frequency?

I would say yes it is... if you think about the shock absorber, physically, if the frequency is to high the damping response is low.

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