Application factor

Symbol KA
Unit -
Attribute-ID abs_application_factor_k_a
Numeric ID 5347
Value Type PMDouble

The application factor KA accounts for dynamic overloads from sources external to the gearing.

It is defined acc. to ABS 2011 and ABS 2019 as:

Primary systems

System type KA
Turbine and electric drives 1.0
Diesel propulsion systems with hydraulic or electromagnetic slip clutch 1.0
Diesel motor with highly flexible coupling 1.3
Diesel motor with other coupling 1.5

Auxiliary systems

System type KA
Electric motors, diesel engines with hydraulic or electromagnetic slip coupling 1.0
Diesel motor with highly flexible coupling 1.2
Diesel motor with other coupling 1.4

For other system types, the application factor must be specified separately.

Source: American Bureau of Shipping (ABS): Rules for Building and Classing Steel Vessels, Paramus, New Jersey - 2011 edition and 2019