It is a rotary wing aircraft where each motor is attached to a rigid cross frame as shown in Fig. 8. Quadrotors are mechanically simpler than classical helicopters.
A skeletal Georgian cross frames the stage, a white chapel dominates the backcloth; the staging has the formality of a morality play.
The numerical formulation is extensively applied to investigate free vibration characteristics of the bridges considering effects of the initial curvature, boundary condition, modeling method, and degrees of freedom of cross frame.
The shear stiffness of pallet rack uprights in the cross-aisle direction is determined experimentally by a load test involving repeated tensile or compressive loading of a cross-aisle frame without cycling through the origin.
The WSD-based data files for existing bridges do not contain the detailed information about steel sections and cross frames needed for the LFD-based rating.
Among variables considered for steel girder bridges were end conditions, girder stiffness, locations of cross frames, girder splices, supplemental reinforcing bars, shrinkage properties, concrete modulus of elasticity, and temperature differential due to heat of hydration.
They are longitudinally stiffened by trapezoidal stiffeners supported by cross frames at most every 4.5 m.
Piles of white crosses frame the faces of youthful resurrected combatants.
These coefficients are calculated from the stiffness coefficients k ξ, k η, k ξη, and k ηξ defined in the rotational frame in a cross section containing the transverse fatigue crack.
Rip 1/2 inch (5.1 cm) thick strips of 1 1/2 inch (5.1 cm) wide lumber to attach to the back frame as a cross bracing to make the chair stable.
