Glossary¶
- AC¶
Abbreviation of Aircraft
- candel¶
spring classification label. A candel is a support fitting for a rail.
- Checked model¶
FE model of the floor structure loaded with user defined loading corresponding to a non standard seating installation
- Checker¶
One analysis module that performs an independant calculation on a dedicated structural item.
- CID¶
Checker ID. A checker identification number, eg. “02” is the non-standard Crossbeam Shear checker.
- Crossbeam¶
Designate the transversal floor beam. This more generic term “floor beam” is also used to designate a crossbeam
- dressing¶
- dressed¶
- dress¶
in the context of MS calculation, the MS dressing consists in make a float number easily readable eg. a raw MS = -0.001 is shown as “>-0.01”.
- fsconf¶
Floor Structure Configuration
fsconf is a key word used by the FloorTools software referring to a floor structure configuration.
- IFL¶
Interface Load
In the User Manual, IFL refers to any cabin monument floor interface load (seat, shroud, shell, partition, small cabinet, etc…)
- lcid¶
- LCID¶
Load Case ID A Load case ID identification number.
- leg¶
spring classification label. A leg is a support fitting for OWB.
- Loading Reference¶
- Reference¶
A “critical” standard PAX seating installating entered in the FTools software and used as reference to pass the non standard seating installation
- LOPA¶
Layout of passenger Accomodations.
In the FTools context, lopa refers to Aircraft layout to be bound on an Aircraft fsconf. The lopa is provided by user as an XLSX input data file.
- MISW¶
Maximum Installed Seat Weight. The maximum installed seat weight is the maximum allowable weight for the seat with all components and includes all equipment the seat installer may add to the seat, such as emergency equipment or literature pocket contents. This weight is equal to the minimum total tested seat weight of all static/dynamic tests used for substantiation of the subject seat P/Ns. However, this weight must be verified against seat track interface loads and other aircraft/structural limitations.
- MS¶
- Margin of Safety¶
Calculation provinding a positive number for a non-failing item, and a negative one for a failing item. Usually defined as \(MS = allowable / applied - 1\).
- OEM¶
Original Equipment Manufacturer
In the User Manual, OEM is mostly used to refer to aircraft manufacturer Boeing or Airbus. However it could also be used to designate cabin equipment manufacturer like seats.
- OWB¶
- owb¶
Overwing Beams. Those longitudinal beams are located over the wingbox.
- PAX¶
Passengers
Throughout the User Manual, PAX is used to designate cabin passengers.
- POC¶
Passenger Occupancy Combination
- Rail¶
Designate the longitudinal seat track. Rail or seat track can be independantly used.
- Reference model¶
FE model of the floor structure loaded with standard PAX seating installation interface load.
- section¶
Section of the Aircraft, as defined by the OEM. This differs from the term zone, which is a section defined by the organization of the LOPA itself.
- SSR¶
Structural Substantiation Report
- trace¶
in the context of Checkers Analysis, a trace is a set of chronological tabular log of what has been done by the checker.
- TTOL¶
Taxi, Take Off and Landing
- vbeam¶
Virtual Beam
Beam of unique property ID regrouping several Finite Elements. See Concept of virtual beam (vbeam) for further references.
- Wheelbase¶
In a LOPA context, a seat’s wheelbase is the distance between seat’s front and aft legs.
- zone¶
Section of the Aircraft, as defined by the LOPA itself. It is a section of homegenous analysis (standard or non-standard). The zone is not to be confused with section, the latter being an Aircraft sction as defined by the OEM.