Search results
Results From The WOW.Com Content Network
GCR Class 9P was a design of four-cylinder steam locomotive of the 4-6-0 wheel arrangement built for hauling express passenger trains on the Great Central Railway in England. A total of six were built: one in 1917, and five in 1920.
When an element of mass is offset from the axis of rotation, centrifugal force will tend to pull the mass outward. The elastic properties of the shaft will act to restore the “straightness”. If the frequency of rotation is equal to one of the resonant frequencies of the shaft, whirling will occur. In order to save the machine from failure ...
The following stresses are induced in the shafts. Shear stresses due to the transmission of torque (due to torsional load). Bending stresses (tensile or compressive) due to the forces acting upon the machine elements like gears and pulleys as well as the self weight of the shaft. Stresses due to combined torsional and bending loads.
The torque tube design is typically heavier and securely ties the rear end together, thus providing a rigid rear end and assuring good alignment under all conditions. However, because of the greater unsprung weight of the torque tube and radius rods, there may be a "little hopping around of the rear end when cornering fast or on washboard roads".
On 28 January 1914, the ship designs width and engines were modified to address these concerns, the beam was finalized at 10.9 m (35 ft 9 in) and the draught at 4 m (13 ft 1 in). A funnel was also eliminated bringing the total number down to two and the engines were changed from solely oil-firing to coal and oil-firing.
Current automotive design favors rocker arm ratios of about 1.5:1 to 1.8:1. [ citation needed ] However, in the past smaller positive ratios have been used, including a 1:1 (neutral ratio) in many engines prior to the 1950s, and ratios less than 1 (valve lift smaller than the cam lift) have also been used at times.
Project 629 was started in the mid-1950s along with the D-2 missile launch system, which it was to carry, and was based on the Foxtrot-class submarine.The design task was assigned to OKB-16, one of the two predecessors (the other being SKB-143) of the Malakhit Marine Engineering Bureau, [5] which would eventually become one of the three Soviet/Russian submarine design centers, along with the ...
Humaitá (S41) is a Brazilian Riachuelo-class submarine built for the Brazilian Navy by ICN in Itaguaí, and DCNS.. The Brazilian boats are larger in length, tonnage and cargo capacity compared to the original French project.