Determine the mobility (degrees of freedom) of the mechanism shown in Fig. 5.39 (a) and (b) using Kutzbach mobility criterion and classify them.
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- There are two pairs of closed soft tooth surface spur gears A and B Parameters of A: modulus m = 2mm, number of teeth Z, = 40,Z, = 90, width of teeth b =60mm. %3D Parameters of B: modulus m = 4mm, number of teeth Z, = 20,Z, = 45, width of teeth b = 60mm. %3D The accuracy of the two pairs of gears is grade 8, and other conditions are the same. Try to compare the contact fatigue strength and bending fatigue strength of the two pairs of gears? And explain the reason?Do as required: 1- For the fig. (la) choose the correct sectional view explaining the reasons for the errors to others. 2- Identify the object shown in fig (1b) and state its uses. 3- Draw a conventional representation for cylindrical compression spring and cylindrical Tension spring. (free hand sketch) Shaft dia MELLTYY 52 a b C FIG. (la) d e to Î 0 Hub dia -Shaft cia FIG. (lb)10. Compound Pendulum. In class we saw the simple pendulum (point mass attached to a massless string), which is a highly idealized scenario. In this question we will explore the compound pendulum (a physical object swung around a pivot, like shown below). (a) Use torque (rotational dynamics) to show that the equation of motion is given by Ia = mg L sin 0 mgsine. PPZ 3 T Figure 1: (left) FBD on Physical/Compound pendulum. (right) Rod pendulum where I is the moment of inertia of the object, a the angular acceleration, m the mass of the object, g the gravitational acceleration and L the distance between the pivot and center of mass of the physical pendulum. (b) Use small angle approximation to find the motion of the pendulum as (t). (c) What is the period of oscillation? (d) Suppose you have a hollow rod pendulum of mass 1 kg and of length 1 m like shown in Fig. 1 (right), also assume it is filled with 4 kg of sand. A hole suddenly appears at the bottom of the rod (t = 0) and starts to…
- Project 2: 1: Female cone (green). :Male cone (blue) 2: Shaft 3: Friction material 4: Spring 5: Clutch control 6: Direction of rotation Cone Clutch Figure.3: conical clutch used in powered boats A conical clutch used in gearing system in powered boats is shown in Figure.3, the manufacturing data are tabulated and summarized in Table.1. Knowing that this conical clutch has been used for long time. Table.1: Conical clutch datasheet Data/Specification Value Inner Diameter 40 тm 115 тm Outer Diameter Coefficients of Friction 0.25 Axial Pressing Force Included Angle Operating Speed of rotation 850 N 85° 1200 rpm 1. Draw a 2D sketch for conical clutch 2. Find the transmitted torque and power based on uniform wear and uniform pressure theories 3. Critically analyse both the uniform wear and uniform pressure theories of friction clutches for their effectiveness in theoretical calculations 4. Analyse the force requirements to engage a friction clutch in a mechanical system, if the power…*** *Show your correct and complete solution neatly. ASAP! Thanks. Given the vibrating system below: K4 Y(t) =Ysin30t where fc: = 30 and K1 Y=20mm Find the following: m C3 C2 C5 C4 M = 10 kg K1=100 N/m K2= 80 N/m K3=75 N/m K4= 120 N/m C1 = 20Ns/m C2= 40 Ns/m C3= 35Ns/m C4-15 Ns/m C5=10 Ns/m 1. Type of Damping 2. Equation of motion x(t). Assume Initial conditions for displacement and velocity. 3. Graph 2 cycles of the vibrating system. You can use third party app for this.The larger diameter and face of the disk of a multiple disk chutch are 225 mm and 20 mm respectively. The load applied to the spring of the clutch axially is 1500 N. Assuming that there are 8 pairs of friction 0.18 and tuning 800 rpm. Find the power transmitted by the clutch using uniform pressure method. (Ans, 13.67 kW)
- pleassssse solve question 7, staticsQuestion (2) The followings are the compression spring particulars in slip clutch unit. You are asked to:- Axial force Spring mean Diameter 25 mm Compression Spring Particulars Og of SAE 6150 O, of Cr-Mo-Ni Steel 1600 MPa 1400 MPa 8 FDK 1000 N Spring index Shear stress in spring wire 5 8 FD3N Y= Gdt No. of active turns, N Modulus of rigidity of spring material, G Spring deflection 10 8 x 10* MPa Wahl factor, K 1.3 1. Calculate the shear stress in spring wire. 2. Choose the suitable spring material. . 3. Calculate the spring stiffness. 4. Determine the spring length in the system in working condition if the spring free length is 100 mm. 5. Recalculate the shear stress in spring wire if the axial force increases to 2000 N without changing the spring material (obtained in no. 2). Comment on your results.A spur pinion of pitch diameter 50 mm rotates at 200 rad/s and transmits 3 kW power. The pressure angle of the tooth of the pinion is 20°, what is the total force exerted by a tooth of the pinion on the tooth on a mating gear?
- A punch punches a 1-in. diameter hole in a steel plate % inch thick every 10 sec. The actual punching takes 1 sec. The ultimate shear strength of the plate is 60,000 psi. The flywheel of the punch press has a mass moment of inertia of 500 in-lb sec? and rotates at a mean speed of 150 rpm. What is the total speed fluctuation of the flywheel in rpm?6. A punch punches a 1-in. diameter hole in a steel plate % inch thick every 10 sec. The actual punching takes 1 sec. The ultimate shear strength of the plate is 60,000 psi. The flywheel of the punch press has a mass moment of inertia of 500 in-lb sec2and rotates at a mean speed of 150 rpm. What is the total speed fluctuation of the flywheel in rpm?A flywheel with a moment of inertia of J=1.8 kg*m^2 is on the output ( low speed side ) of a reduction gear with a 3:1 speed ratio. What is the equivalent moment of inertia on the input. ( high speed side ) of the gear if the the gear adds no additional moment of inertia?