Question

Mechanics of Machines

MOM401M/101/0/2019 Determine: 3.1 the magnitude of the deflection of the tail section of the helicopter as the tail rotor rotates at 1500 r/min. 3.2 At what rotor speed is the deflection a maximum and also calculate the maximum (10) deflection. (5) [15] 0.5 kg 60 kg 20 kg Figure Q3

Answer 1

Nnle inth Son m O Cokg 20k fiq shoto f nachin a Tohr her CPtoterd to a me vouion of tne toil seion in tne yee hea dteha dech on is onshruikd and tne icopter bot1 is modeled and as qsound e pesent tail Sechi on used to The S Sou 1u09 quivalen mass tencept otuna hos orqurny is 2 usiny 53.7 0ad/s k n 20.5+33CO 40 nt 33 ms of Rotahen The r1S00pm ISO min 27T0ad min I56.g4 IS7 odo 60Se rve io, becomes, hence, the coitn 2.72 rgd/9 스 2-92 - 53.72H of oscilla hon of tne toil ntoris Mnitude TRe 642 2 2 X Moe 34. 64 J-(13)2-[2««)1]^ o 002m X mtMe 34. the rquivolen t moss is me here The mavimunm defleckon ocurc at psind about N S13.1 TpM n2 tt Tr mis case moximum dfle chon becomes Y moe 34.34 cohich rsent a lor unacceplatle deflech oh of tne oto. Thus tre tojl L.to sholU 1d not be alloued to 10to t 513 rpm Meq Y108Cm