How do you calculate static stability factor?
SSF is a measure of how top-heavy a vehicle is. A vehicle’s SSF is calculated using the formula SSF=T/2H, where T is the “track width” of the vehicle and H is the “height of the center of gravity” of the vehicle. The track width is the distance between the centers of the right and left tires along the axle.
What is SSF at car?
The SSF is how the National Highway Traffic Safety Administration determines a vehicle’s rollover probability. It is the vehicle’s at-rest calculation of its rollover resistance. The number is based on the vehicle’s geometric properties. SSF is a measure of how top-heavy a vehicle is.
How do I know when my car will roll over?
SSF is defined as the track width divided by twice the center of gravity height; i.e., SSF = T/2H. The theoretical basis for SSF calls for rollover if the sum of the lateral forces on the tires, divided by the weight of the vehicle, is greater than T/2H for a sufficient length of time (Gillespie 1992).
What is static stability factor?
One of the primary means of assessing rollover risk is the static stability factor (SSF), a measurement of a vehicle’s resistance to rollover. The higher the SSF, the lower the rollover risk. This report tracks the trend in SSF over time, looking in particular at changes in various passenger vehicle types.
What is static stability?
Static stability measures the gravitational resistance of an atmosphere to vertical displacements. It results from fundamental buoyant adjustments, and so it is determined by the vertical stratification of density or potential temperature.
What does SSF mean?
SSF
| Acronym | Definition |
|---|---|
| SSF | Small Form Factor |
| SSF | Single Stock Futures |
| SSF | Sikh Students Federation |
| SSF | Service Switching Function |
How do you become a member of SSF?
New applicants must present either of the following proof of identity – Identification Card (IC), Driving License, or Passport upon submisison of application. A fee of RM99. 90 is required upon application. SSF VIP Card is valid for 1 year.
How do you calculate rollover angle?
Lift the string up and tape the other end to your trunk or tailgate at the engine head-height reference mark. Now, measure the angle between the ground and the string where it meet the block. This is your vehicle’s rollover angle.
Why do cars roll over physics?
Rollover occurs when the ensuing rotation causes the force of gravity vector to pass through the pivot point. A vehicle is moving, without slipping, around a circular curve at a constant speed high enough to just cause rollover. Rollover occurs when the force of gravity vector passes through the pivot point.
What is the best form of protection for a head on collision?
A head-on collision occurs when your vehicle hits head-on to another vehicle or a solid object. This is very dangerous and could be lethal at high speeds. Air bags and seat belts are the best protection. If you slow down the force of impact will be less.
What are the three types of static stability?
There are three kinds of static stability:
- Positive.
- Neutral.
- Negative.
What is static and dynamic stability?
Static stability of an aircraft describes the tendency of and aircraft to retain its original position when subjected to unbalanced forces or moments acting on the aircraft. • Dynamic stability describes the form of motion an aircraft in static stability undergoes when it tries to return to its original position.