What is the ideal damper for a passenger car suspension?

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• Thread starter

  hackashack

• Start date

  Mar 29,

• Tags

  curve damper damping ratio force frequency high speed velocity

In summary, the conversation discusses the design of front suspension for a passenger car, with the main focus being on achieving maximum comfort at different speeds. The speaker mentions a desired damping ratio of 0.2 and the importance of having different damping levels during rebound and bump. They also express concerns about selecting a suitable damper from the market and mention resources such as a book and online forums for assistance.

FAQ: What is the ideal damper for a passenger car suspension?

What is a damper and why is it important to select the appropriate one?

A damper is a mechanical device used to regulate or control the flow of air, gas, or liquid. It is important to select the appropriate damper because it affects the performance and efficiency of the system it is used in. A properly selected damper can save energy, reduce noise, and improve indoor air quality.

How do I determine the appropriate size of a damper for my system?

The size of a damper depends on the size of the duct it is being installed in. The general rule of thumb is to select a damper with an opening size that is equivalent to the duct size. However, other factors such as air flow rate, pressure drop, and system requirements should also be considered when selecting the appropriate size.

What types of materials are commonly used for dampers?

The most common materials used for dampers are galvanized steel, aluminum, and stainless steel. Galvanized steel is the most economical option and is suitable for most applications. Aluminum is lightweight and corrosion-resistant, making it suitable for outdoor use. Stainless steel is the most durable option and is often used in high-temperature or corrosive environments.

How do I know if I need a manual or motorized damper?

A manual damper is operated by hand, while a motorized damper is operated by an electric or pneumatic motor. The type of damper you need depends on the level of control you require. If you need to adjust the damper frequently, a motorized damper would be more convenient. If the damper will remain in a fixed position, a manual damper may be sufficient.

Are there any codes or standards I should follow when selecting a damper?

Yes, there are codes and standards that govern the selection and installation of dampers. The most common ones include the International Mechanical Code (IMC), National Fire Protection Association (NFPA) 90A and 90B, and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Handbook. It is important to consult these codes and standards when selecting a damper to ensure compliance and safety.

1. Identify the motion type:

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Consider the movement you need in relation to the space in which the damper can be positioned. The type of movement, the mounting space and the torque/force required can make the difference among rotary, axial and linear dampers

2. Load requirements:

Determine the torque or force the damper needs to handle. Different dampers have varying load capacities

3. Size and form:

Ensure the damper fits within the available space. Consider the size of the damper housing and the mounting options, such as whether it needs to be concealed or visible.

4. Environmental conditions:

Some dampers are designed to withstand extreme temperatures or humid environments.

5. Speed of motion:

Consider the desired speed of motion and the damping force required to control it. Different dampers provide varying levels of resistance, and it's crucial to match this to the application's needs.

6. Ease of installation:

Look for dampers that are easy to install and compatible with your application. Some may require specific mounting orientations.

In Conclusion:

Choosing the perfect damper is a nuanced decision that requires a thoughtful consideration of your specific application needs. Whether it's rotary, axial, or linear dampers, understanding their unique strengths and applications will empower you to make an informed choice.

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