fatigue test

Norton's policy is we fatigue test to more than twice the design life of the aircraft.

At last a fatigue test is performed to investigate the effect of local weld profile.

He is using a spare tailplane from a Reindeer aircraft in a fatigue test.

Fatigue test, typically several thousand cycles of charging/emptying.

The second (partial) prototype was used for static tests, and the fourth for fatigue tests.

Parameters are found by comparing fatigue tests done in air and in an environment with no oxygen (vacuum or argon).

Evaluation of structural configurations and determination of LOV based on fatigue test evidence.

Mr. Keith noted that manufacturers had routinely done fatigue tests to verify pre-production analyses on the durability of structural parts.

The first two were used as test rigs for the new Napier Gazelle engines and the third was used for fatigue tests.

On 6 December 1978, Embraer was officially awarded a contract to produce two prototypes and two airframes for fatigue tests.

Mr. Swift also urged that the aviation agency require fuselages to be subjected to metal fatigue tests simulating at least twice their planned time in service.

NAL is equipped with facilities such as the Nilakantan Wind tunnel Centre and a computerised fatigue test facility.

Modular Wind Energy is the first commercially viable divided blade to pass the fatigue test required by the IEC standard.

'No fatigue tests were carried out on the B 707-300 series horizontal stabiliser structure prior to USA or UK certification.

With Mr. Clinton, who has confessed that he makes his worst mistakes when he is overtired, the first few days of his trip to Asia were a fatigue test.

It now has a full FAR 23 utility and aerobatic type certificate, and a full-scale wing is on fatigue test aimed at achieving an airframe life of 15,000 hours.

During 2008 the project was cancelled, jigs and tools removed and 3 unfinished fuselages (including fatigue test prototype 0004) were moved to the Air Park Zruč u Plzně museum.

As the surviving S-3 airframes were forced into sundown retirement, a Lockheed Martin full scale fatigue test was performed and extended the service life of the aircraft by approximately 11,000 flight-hours.

The company carried out testing of the aircraft beyond the ASTM Light Sport Aircraft requirements, including ground vibration testing and a full airframe fatigue test program on a production aircraft.

Introductory Fatigue Tests on Welded Joints in High Strength Steel and Aluminium Treated by Various Improvement Methods Including Ultrasonic Impact Treatment (UIT).

Inspection Directives In a major report in December 1986, an F.A.A. team specifically suggested that planes undergo fatigue tests simulating twice the number of flights designers anticipate they will make as one way to determine vulnerability.

These methods are derived from fatigue tests with large scale specimens, that include effects of geometrical and structural imperfections from material production and execution (e.g. the effects of tolerances and residual stresses from welding).

Fatigue tests and stress analysis showed that both sizes of blades had failed due to fatigue at the sharp fillets as a result of the repeated changes in the centrifugal load due to variations in the turbine rotational speed.

The flexural fatigue tests on corroded panels demonstrated that endurance limit losses were lower for the steels containing molybdenum or titanium (approximately 9,000 lb/in2) than for those containing columbium or no additional alloy element (approx.

The mounting points for all recent passenger vehicles are defined by the vehicle manufacturer and the tow-bracket manufacturer must use these mount points and prove the efficacy of their bracket for each vehicle by a full rig-based fatigue test.