give a valid reason. thanks
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- In a gearbox, a spur gear is mounted on a shaft at equal distances from twosupporting bearings. The shaft and mounted gear turn together at a speed of3600RPM. The gearbox is designed to transmit a maximum power of 3kW. Thegear contact angle is φ = 20°. The pitch diameter of the gear is dp = 30 in. a) Findthe radial force on each of the two bearings supporting the shaft.The ratio of the two bearings’ length and diameter is L/D = 0.5. The bearings aremade of acetal resin material with the following limits:Surface velocity limit, V, is 5m/s.Average surface-pressure limit, P, is 7 MPa.PV limit is 3000 psi-ft/min.b) Find the diameter of the shaft in order not to exceed the stated limits.ANSWER ASAP The worm gear rotating at 1250 rpm drives a worm wheel and whose velocity ratio is 12 to 1. A driving motor with 12 hp is used to supply the worm with worm pitch gear diameter of 3.5 in. Find the tangential force on the gear.The solid steel shaft is supported by the frictionless customer on D and E. This system The mile provided 5 kW of power in w dev / second and was connected to a motor at C. wwww ww www ww ww www wwwm www w A and B If gears get primary 2 kW and 3 kW, determine the minimum shaft diameter. w rotation speed and The safety shear stress is known and is included in the table below. pictures. wwww ww wwwwwwwww www wwwwww wwwwwwww wwwwwwwww w(cycle/second) = 100 tem(Mpa) = 40 3 kW 5 kW 2 kW A D B E C _
- Two equal gear wheel of 360 mm p.c.d and 6 module are in mesh if the pressure angle 20 determine the maximum addendum necessary if there are always to be at least two pairs of teeth in contact . if the gear wheels rorates at 110 r.p.m and 6 kw is being transmetted find the normal force between the teeth assuming that the total force is dividing equally between the two pairs of teeth Neglect the frection. (Ans 6.8mm , 1.54KN .)The driving shaft of a Hool joint rotates at a uniform sp. of 400 rpm. If the maxim variation in speed of the dri shaft is + 5% of the mean speed, determ the greatest permissible angle between axes of the shafts. What are the maxim and the minimum speeds of the driven shoTwo gears are designed to mesh as shown. Gear 1 is driven by another gear that is not shown which induces a force, F, equal to 52 N as shown. Gear 1 has 78 teeth and a pitch diameter equal to 64 mm. If Gear 2 has 44 teeth, and the gears are to remain at constant speed while the tangent force F is applied, find the Value of the resisting torque that is applied to Gear 2. Direction that the resisting torque should be applied. Explain youranswer. Note: Gears are not drawn to scale.
- The turning moment diagram for a multi cylinder engine has been drawn toa scale of 1 mm = 4500 N -m vertically and 1 mm = 2. 4 ͦ horizontally. Theintercepted areas between output torque curve and mean resistance lineabove and below the mean taken in order from one end are 342, 23, 245,303, 115, 232, 227, 164 ??2, when the engine is running at 150 rpm. Ifthe mass of the flywheel is 1000 kg and the total fluctuation of speed doesnot exceed 3% of the mean speed, find the minimum value of the radius ofgyration.and the staticcoeff.of coeffoF fric oniso.3thekineticcoeff of frictionis-, +Please draw the figure. Thank you so much.An engine flywheel and a clutch plate are both connected to a transmission shaft. Let the moment of inertia of the flywheel be I1 and its angular velocity ω1, and let the moment of inertia of the clutch plate be I2 and its angular velocity is ω2. The two discs have then been combined by forces which are applied at their axes of rotation so as not to cause any torque. The discs then reached a common final angular velocity after rotational collision. Find the expression for the final angular velocity.
- Calculate the work produced by the 25-N force at an angle 30 degrees from the horizontal which resulted to a 15m displacement.Kindly answer with complete solution please. Needed ASAP.#21. a puhip fropeller Ahaft haw a diameter off 0.35 meters. the allowabre wrlking and the allowable angle on twist u 1 deqe acrosi ita, lengthe equal to 15 diameters stress in Ahear ia 50 megaPaseals %3D brwe fow maximum torque the thaft can transmitThe shaft, is driven by pulley B from an electric motor. Another belt drivefrom pulley A is running a compressor. The belt tensions for pulley A are 1500 N and 600 N. The ratioof belt tensions for pulley B is 3.5. The diameter of pulley A is 150 mm and the diameter of pulley B is 480 mm. The allowable tensilestress for the shaft material is 170 MPa and the allowable shear stress is 85 MPa. Taking torsion andbending factors as 1.25 and 1.75 respectively, find the shaft diameter.Also find out the dimensions for a hollow shaft with outside diameter limited to 30 mm. Compare theweights of the two shafts. [Ans. 30 mm ; 24 mm ; 1.82 Given Length CD=350mm Length AB=150mm Length BD=100mm The total length is CD =350