Answer Happy

Q3. Some mass and radius information of the rotor system shown in Figure Q3 are given below and the system is static and dynamic balanced. Plane ABCDE Plane A B C D E Mass 2 kg 4 kg 4 kg (a) Taking plane B as the reference plane, compile Table Q3 to show the x, mr and mrx values. Table Q3 0.1 m m (kg) 2 Radius from axis 200 mm 100 mm 100 mm 100 mm 200 mm 4 4 X 8 (mm) (m) (deg) 200 0 100 100 100 200 0 B H 0.1 m с 135 90 Angular position from mass A 0° 0.1 m Figure Q3 135⁰ 90° (b) By drawing a moment polygon, find the mass E and its angular positions relative to mass A. (Suggested scale: 1cm= 10 kg-mm-m) (9 marks) (c) By drawing a force polygon, find the mass B and its angular position relative to mass A. (Suggested scale: 1cm= 100 kg-mm) (10 marks) A mr (kg-mm) D 0.1 m (6 marks) mrx (kg-mm-m) E