Question

Design two stages, compact and closed speed reducer (gearbox). You need to justify your selections with appropriate calculations and assumptions for required components and materials. The rotation axes are parallel and maintain the direction of rotation. The volume of the gearbox should be minimized as much as possible.

Power Transmitted: 27 hp, Input Speed: 500 rpm, Output Speed: 300-320 rpm, Gear Type: Spur, Power Source: Electric Motor, Driven Machine: Uniform, Design Life: 9500 hours

At the end, you will create 3-D solid model of the Project and detailed technical drawings by using Solidworks.

Answer 1

The 24 consonant sounds comprise six stops (plosives): p, b, t, d, k, g; the fricatives f, v, θ (as in thin), ð [eth] (as in then), s, z, ∫ [esh] (as in ship), Ʒ (as in pleasure), and h; two affricatives: t∫ (as in church) and dƷ (as the j in jam); the nasals m, n, ŋ (the sound that occurs at the end of words such as young); the lateral l; the postalveolar or retroflex r; and the semivowels j (often spelled y) and w. These remain fairly stable, but Inland Northern American differs from RP in two respects: (1) r following vowels is preserved in words such as door, flower, and harmony, whereas it is lost in RP; (2) t between vowels is voiced, so that metal and matter sound very much like British medal and madder, although the pronunciation of this t is softer and less aspirated, or breathy, than the d of British English.