Determine the position of the neutral axis of a curved bar subjected to flexure by a couple shown in Fig. 8-15. The cross- section of the bar is an I-profile having dimensions as given below : b₁ = 20 mm, b2 = 10 mm, b3 = 30 mm r₁ = 30 mm, h₁ = 10 mm, h₂ = 20 mm and

A 3D truss is supporting 2 forces F₁ and F₂- F₁ = 1,080 N at and angle alpha = 33 deg. F1 is in the y-plane • F2 = 2,232 N at an angle theta = 43 deg. F2 is in a y'z-plane The dimensions of the truss are: |dae=1.0 m dac=1.0m deo=17m LAB dAc pz Forces ась a Cartesian form of F Vector position from C Moment about Point C Moment about AC axis Vector position from E Moment about Point E Moment about BE axis Moment about EJ axis dGI = 1.7 m F₁ (N) املا قابل Fill this table, write your steps under the table, and make a drawing when requested of the moment found (either vector or scalar) y H F₂ (N) Total Force (N) or Moment (N.m) + Make a drawing + Make a drawing + Make a drawing + Make a drawing + Make a drawing Note: The force and the moment about a point are vectors. The moment about an axis is a scalar value. In the box below, enter the moment of F₁+F₂ made about AC-axis in N as an integer.

The two bearings (B1) and (B2) are used to support a shaft as shown in the figure Using the data given in the table below, (a) Calculate the following: (i) The radial force supported by Bearing-1 (B1) (ii) The radial force supported by Bearing-2 (B2) (ii) The axial force supported by Bearing-1 (B1) and Bearing-2 (B2) (iv) The equivalent force (P) supported by Bearing-1 (B1) (v) The equivalent force (P) supported by Bearing-2 (B2) (vi) The life in hrs. of bearing-1 (B1) (vii) The life in hrs. of bearing-2 (B2) (b) Comment on your results (Answer in one/two sentences only) Particulars Details Bearing Type (B1) Bearing Type (B2) Speed of Shaft (N) Dynamic load Rating (C) of Bearing (1) Dynamic load Rating (C) of Bearing (2) External Radial Force (Fr) External Axial Force (Fa) Deep Groove Ball bearing Cylindrical Roller Bearing 750 грm 120 kN 60 kN 25 kN 6 kN X =0.56, Y =1.6 Bearing Constants (ball bearing) Fr B1 B2 Fa 70 mm 100 mm

8-30 A three-bar frame is loaded and supported as shown in Fig. moment transmitted by Determine the internal resisting forces and Section aa in bar BD. 900 N 250 mm 250 mm 300 mm E 300 mm 300) mm 180 mm 180 mm