Can anyone say, how much diameter of rotor(disc) is required for

  • Thread starter Bharath reddy
  • Start date
  • Tags
    Diameter
In summary, the required diameter of the rotor for locking all four wheels on a 300kg vehicle may vary depending on the brakes chosen and the terrain the vehicle will be used on.
  • #1
Bharath reddy
1
0
can anyone say, how much diameter of rotor(disc) is required for locking of all 4 wheels of a 300kg vehicle in an off road?? (approx.)
and i heard from technicians that drum brakes can`t lock wheels, is it true??
 
Engineering news on Phys.org
  • #2


It depends on how much braking force can be applied to the brake pads. Even drum brakes can lock wheels, although disc brakes tend to provide more stopping power for the same braking force.
 
  • #3


Drum brakes can lock wheels. Locked-on brake applications (parking brake) tend to be easier to implement with drum brakes than with disc brakes. Being able to lock wheels, with either disc or drum, is primarily a question of effective brake radius, applied brake shoe/pad force, and friction material.

Disc brakes have several advantages over drum brakes, lighter, cool off faster, easier to implement anti-skid control, have a more progressive or linear feel (pedal pressure vs. braking force).

Locking up the wheels, once, is largely a question of how much force is applied to the rotor by the brake pads. Sizing brakes for general use is far more involved than just being able to lock the wheels. Still, determining the force/torque needed to lock the wheels is a question of adhesion, wheel diameter, vehicle weight, rotor or drum diameter, and how much force can be applied to the brakes (how strong is your leg). Typically for maximum braking capability, an adhesion value of 1 is often used.
 
  • #4


true..drums can lock up just like disc brakes..the biggest draw back to drums is heat build up and brake fade..the inability of the brake shoes to slow the vehicle due to excessive heat..your atv wight of 600 pound leads me to think a good set of motorcycle brakes would do it..
you will have t o be careful on the master cylinder selection..think about using a brake proportioning valve..maybe run two master cylinders with different diameter bores..after you calculate the front to rear weight bias..ifin you run one master cylinder you may loop the car due to too much front brake bias..additionally a single master cylinder is dangerous..especailly in th e bush where all kinds of jagged things can destroy brake hoses
 

1. What factors determine the required diameter of a rotor (disc)?

The required diameter of a rotor (disc) is primarily determined by the weight and speed of the object it is intended to stop or slow down. Other factors that may impact the required diameter include the braking force needed, the type of material used for the rotor, and the design and placement of the brake pads.

2. How does the weight of the object affect the required rotor diameter?

The weight of the object directly affects the required rotor diameter. A heavier object requires a larger rotor diameter in order to generate enough friction and braking force to slow it down effectively. This is because a larger rotor provides a larger surface area for the brake pads to make contact with and create friction.

3. What is the relationship between speed and rotor diameter?

The speed of the object also plays a significant role in determining the required rotor diameter. The faster an object is moving, the more heat is generated during braking. In order to dissipate this heat and prevent overheating, a larger rotor diameter is needed to provide more surface area for heat to be dispersed.

4. How does the type of material used for the rotor affect the required diameter?

The type of material used for the rotor can impact the required diameter in two ways. Firstly, the material's ability to withstand heat and friction may determine the maximum speed and weight that the rotor can handle, thus affecting the required diameter. Secondly, the material's coefficient of friction will also play a role in determining the required diameter, as a rotor made of a material with a lower coefficient of friction will require a larger diameter to generate the same amount of braking force as a rotor made of a material with a higher coefficient of friction.

5. How can a scientist determine the exact required diameter for a specific braking scenario?

A scientist can use mathematical equations and calculations to determine the exact required diameter for a specific braking scenario. This would involve considering all the factors mentioned above, as well as other variables such as the force applied by the brake pads, the angle of the rotor, and the speed and weight of the object. Computer simulations and experiments can also be used to verify the calculated diameter and make any necessary adjustments.

Similar threads

Automotive How to calculate hydraulic disc brake size using actuation force?
    • Mechanical Engineering
Replies
15
Views
5K
Sizing hydraulic (brake) lines
    • Mechanical Engineering
Replies
7
Views
2K
Automotive Alignment Theory - DIY Help
    • Mechanical Engineering
Replies
20
Views
2K
Can you help me calculate the required torque and power of this motor?
    • Mechanical Engineering
Replies
8
Views
1K
Vehicle cornering behavior and Ackermann geometry
    • Mechanical Engineering
Replies
3
Views
966
Calculate Braking Torque for Winch Emergency Stop
    • Mechanical Engineering
Replies
2
Views
2K
Is Your Brake System Simulation Tool Accurate and User-Friendly?
    • Mechanical Engineering
Replies
5
Views
2K
How much should I adjust torque when using anti-seize?
    • Mechanical Engineering
Replies
21
Views
551
Torque specs for 6,000lb party bike
    • Mechanical Engineering
Replies
7
Views
2K
Why does the clutch disc disengages the flywheel?
    • Mechanical Engineering
Replies
14
Views
9K

Hot Threads

Recent Insights

Back
Top