5.a the diagram below represents a lorry tail lift. The load represents the maximum load pecification. Calculate the forces and draw the shear force and bending moment diagrams or this loading scenario. 650 N UDL = 190 N/m 4 m
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- Draw the shear and bending moment diagrams and determine Vmax and Mmax. (remember to find support reactions)Calculate the rection forces when the radius of the pulleys are 0,1 m and K = 1200 N.Calculate the reaction forces on the bearing near the pulley and bearing at the far end of the shaft. Include a free body diagram and coordinates. Given the shaft length is 1 meter= Mass=40Kg Static load = 8600N Dynamic (running load) = 8400N Some hints:1. This solution will require you to draw known forces and find unknown reactions in 2perpendicular planes and then add the horizontal and vertical reaction forces asvectors to find the reaction force (hypotenuse).2. Bearings are usually mounted as near as possible to the ends of the shaft withoutfouling the other machine elements. The bearing at the far shaft end can be mountedat the 1 meter point. The bearing at the pulley end should allow clearance to assemblethe pulley.3. Bearing reaction forces are typically simplified as a single point load through thebearing centre.
- Topic 2: Internal Forces: shear, bending, torsion 1. Calculate the normal force, shear force and moment at point C for the given problem below 9 kN/m B -3 mThe shear force and bending moment are maximum at the support end in a cantilever beam. Select one: O True O False The tyre of a parked car in a parking lot experiences Select one: O Rolling Friction O Sliding Friction O Static Friction O Both static and dynamic friction The Tripod is an example of space frame Select one: O True O False7. A compound lever as shown below. Find the effort P. if the system is used to lift a mass of 800kg. (10) S00 mam 400 mm 350 mm S0mm 800 kg 8. An oil drum 600mm in diameter and length Im is to be rolled over a step 120mm in height. Find the least pull through the centre of the drum required just to turn the drum over the step. Also find the reaction on the step. Assuming all the surfaces to be smooth. Take density of oil as 1 kg/litre and neglecting weight of the drum. (10) 50 mm
- 1) Given the figure below, answer the following questions: a) What are the x and y components offorce F? (use Fx and Fy)b) What are the x and y components offorce P? (use Px and Py)(Hint: The x-y plane is differentfrom the true horizontal and verticalaxes)c) What are the vertical and horizontalcomponents of force F? (use Fh & Fv)d) What are the vertical and horizontalcomponents of force P? (use Ph & Pv)e) What is the magnitude of the resultant?f) What angle does the resultant make withthe horizontal axisg) What angle does the resultant makewith the inclined x-axis.1. You are tasked to design a shaft for power transmission through a belt and pully at its right side. The shaft is supported by a thrust bearing at A and a journal bearing at B. a) Determine the support forces the bearings have to "bear". (In machine design, this step is necessary for selecting the correct bearings from the catalog) Tip: Journal bearing can only support lateral (radial) force, like By in this problem, while Thrust bearings can support axial and lateral forces, like A, and A, in this case. b) Upon inspection of the shaft, you decide that the cross-section C needs to be evaluated to avoid mechanical failure. Find the resultant internal loadings acting on the cross-section at C. If the shaft diameter at this section is 0.3 mm, what are the average normal and shear stresses at this section? 700 N/m IIII C |--1m+1 m +1 m+15m 2m D 1 kNThe figure attached shows a crank loaded by a force F=300 lbf that causes twisting and bending of 3/4 -in-diameter shaft fixed to a support at the origin of reference system. Calculate the following: The internal forces at A, B, and C. Refer to the FBD figure and table provided below. All units shall be in lbf-in for moments and torques, lbf for forces. Determine the maximum normal and shear stress at A. DRAW THE STRESS ELEMENT/S AND SHOW APPROPRIATE FORCES. Units shall be in ksi.
- Find the magnitude of tension in string (or spring scale reading) and the magnitude of vertical FV and horizontal FH components of force applied on meter stick by the hinge. (Project this equation on Ox …this will give you the magnitude of FH force. Project this equation on Oy …this will give you the magnitude of FV force) (Draw a free body diagram) please data: Lruler = 1m mruler= 134 g dstring=80 cm d1= 35 cm d2= 82 cm M1=250g M2=150g θ = 38 degrees α= 62 degreesProvide step-by-step solution with complete given and formula to this problem. Draw sketch also. A mine hoist is to carry a cage loaded with ore at a total load of 8 tons. The depthof mine shaft is 328 ft. A 6 x 19 IPS wire rope with rope diameter of 1.75 in is to beuse with sheave diameter of 39 in. The cage loaded is to start from rest and will attaina maximum velocity of 525 fpm in 10 seconds. Find the total load of the rope. A. 12,086 lbs B. 14,086 lbs C. 16,086 D. 18, 086 lbs1. Consider the slider-crank linkage shown in Fig. 1, representing a low speed compressor so that inertial effects are negligible. It is assumed that gravity forces are also small compared with the other forces and that all forces lie in the same plane. The dimensions are OB = 30 cm, and BC = 70 cm Find the required crankshaft torque Tand the bearing forces for a total gas pressure force P = 3 kN when the crank angle o = 30° crank angle Fig. 1. Slider Crank Mechanism