(Solved): SEMM2223 - PROJECT REPORT... Done To evaluate the effect of placing an additional springdamper at fi ...
SEMM2223 - PROJECT REPORT... Done To evaluate the effect of placing an additional springdamper at five different positions on the system's dynamic behavior and recommend the optimal location. Figure 1 As shown in the Figure 1, the system consists of rigid body AOI pivoted at O supported by four springs (
k_(1),k_(2),k_(3),k_(4)) and four dampers (
c_(1),c_(2),c_(3),c_(4)) located on two uniform discs. The system is also loaded with two concentrated masses (
m_(1),m_(2)). The distance
h_(1)and
h_(2)are in range between 0.01 m to 0.2 m . By using MATLAB script, determine and solve the following problems. a. Determine the natural frequency of the system (
\omega _(n)), damping ratio (
\zeta ), and its respective period of vibration (
T_(d)) by using different combination values of
h_(1)and
h_(2). Please plot all result with respect to the different combination values of
h_(1)and
h_(2). b. By using the same combination of
h_(1)and
h_(2), determine the amplitude ratio,
(x_(n))/(x_(0)), when
n=1,2,3,4. Please plot all result with respect to the different combination values of
h_(1)and
h_(2). c. Discuss the result obtained in (a) and (b). d. For critical damping condition, determine the value for
h_(1)and
h_(2). Some modification was made on the system by attaching ONE sets of spring and damper (
k_(s),c_(s)) at FIVE different locations along AOI. Based on your selected combination of
h_(1)and
h_(2)values from (a) and (b), discuss the effect at each location in term of natural frequency of the system (
\omega _(n)) and damping ratio of the system (
\zeta ). State the best position according to your result.
