Modal Analysis Study On Aluminum 6061 Using Accelerometer And Piezoelectric Film Sensor

This study is conducted to determine vibration or modal parameters such as natural frequencies and mode shapes of aluminum 6061 (Al6061). If the component vibrates with frequency coherence with the natural frequency, resonance frequency will occur and structural failure might emerge. Modal analysis study is conducted by both simulation and experimental methods. Simulation is conducted via ANSYS software while impact hammer testing is done for experimental work to determine the vibration parameter. Two sensors are used, which are piezoelectric film and accelerometer. Hence, the results obtained from accelerometer showed that frequencies for mode shape 1, 2, 3, 4, 5 and 6 for rectangular shape are 272.00Hz, 521.33Hz, 913.00Hz, 1080.67Hz, 1437.33Hz and 1803.00Hz. The results obtained from piezoelectric film showed that frequencies for mode shape 1, 2, 3, 4, 5 and 6 for rectangular shape are 258.33Hz, 524.67Hz, 884.33Hz, 1141.67Hz, 1399.67Hz and 1752.33Hz. Finally, the results captured from simulation appeared that frequencies for mode shape 1, 2, 3, 4, 5 and 6 for rectangular shape are 291.72Hz, 647.63Hz, 841.42Hz, 1465.00Hz, 1554.00Hz and 1952.40H respectively. The results showed that low cost sensor which is piezoelectric film proved to be reliable in detecting the modal parameter

An Investigation On Light Structure Modal Parameter By Using Experimental Modal Analysis Method Via Piezofilm Sensor

This study is conducted to determine the modal parameters namely natural frequencies and mode shapes of aluminum 6061 (Al6061). The parameters are done by conducting a free dynamic vibration analysis. Modal analysis study was conducted by both simulation and experimental approaches. The simulation was conducted via ANSYS software while the experimental work was performed through impact hammer testing to determine the vibration parameter. Two sensors i.e. piezoelectric film and accelerometer were used. The result obtained were ya = 302.02x – 52.51 (accelerometer) and yp = 295.78x - 41.73 (piezofilm). ya (accelerometer) and yp (piezofilm) is linear equation of the data plotted according to the reading from mode shape versus natural frequency. The relation between natural frequency from accelerometer and piezofilm for the rectangular-shaped specimen was ya = 1.02yp – 9.90 and can be concluded that the regression ratio of 1.02 was approximately 1.0 which agreed with the status of piezoelectric film sensor that can be used as an alternative sensor for accelerometer. There was a good results agreement between simulation and experimental work outcome

Novel Technique Of Modal Analysis For Light Structure Via Piezofilm Sensor: A Comparison Study

This study is conducted to determine the modal parameters namely natural frequencies and mode shapes of aluminum 6061 (Al6061). A light and small structure made from Al6061 is chosen as the experimental specimen mainly because of its wide application in industries such as automotive parts or accessories and robotic, mainly in manufacturing of automobile frames. If a component vibrates with a frequency that is coherent with the component’s natural frequency, resonance frequency will occur and structural failure might emerge. Two sensors i.e. piezoelectric film and accelerometer were used. The result obtained were ya = 329.60x – 142.27 (accelerometer) and yp = 304.98x + 15.18 (piezofilm). The relation between natural frequency of accelerometer and piezofilm for the triangle-shape specimen was ya = 1.08yp – 158.67 and can be concluded that the regression ratio of 1.08 was approximately 1.0 which agreed with the status of piezoelectric film sensor that can be used as an alternative sensor for accelerometer. There was a good results agreement between simulation and experimental work outcome

Novel Technique Of Modal Analysis On Small Structure Using Piezoelectric Film Sensor And Accelerometer

Modal Analysis is a common practice to define parameters of structure under scientific view. Experimental Modal Analysis (EMA) is a well-known procedure to determine modal parameters. The usage of piezoelectric film sensor as viable and cost-saving device is indeed a need in this advance and sophisticated era. An experiment is conducted to determine modal parameters of aluminum 6061 (Al6061). Here, a free dynamic vibration analysis is conducted to obtain the parameters. Al6061 is chosen as the experiment component because of its wide application in manufacturing industries. Theoretically, if the component vibrates and produce frequency coherence with the natural frequency, resonance frequency will occur which can lead to structural failure. Modal analysis study is conducted by using both simulation and experimental methods. Simulation is conducted via ANSYS software while impact hammer testing is done for experimental work. Piezoelectric film and accelerometer are used as the sensor. The result obtained from simulation showed that frequencies for mode shape 1, 2 and 3 for square shape are 191.89Hz, 542.34Hz and 766.18Hz. The result gained from accelerometer showed that frequencies for mode shape 1, 2 and 3 for square shape are 195.00Hz, 557.00Hz and 865.00Hz. The result captured from piezoelectric film sensor appeared that frequencies for mode shape 1, 2 and 3 for square shape are 205.33Hz, 609.33Hz and 904.33Hz. The result obtained from simulation showed that frequencies for mode shape 1, 2 and 3 for circle shape were 134.60Hz, 324.73Hz and 727.52Hz. The result obtained from accelerometer showed that frequencies for mode shape 1, 2 and 3 for circle shape were 158.67Hz, 421.33Hz and 625.00Hz. Finally, the result captured from piezoelectric film sensor appeared that frequencies for mode shape 1, 2 and 3 for circle shape were 141.00Hz, 321.00Hz and 504.33Hz respectively. The equation of gradient for accelerometer and piezofilm is ya = 316.42x - 104.13 and yp = 309.63x - 43.20 respectively. Therefore, the relationship between the natural frequency of accelerometer and piezofilm for the square-shaped specimen is ya = 1.02yp - 59.98. The equation of gradient for accelerometer and piezofilm is ya = 270.55x - 134.82 and yp = 280.89x - 215.04 respectively. Therefore, the relation between the natural frequency of accelerometer and piezofilm for the circle-shaped specimen is ya = 0.96yp + 72.3. Both result showed the regression ratio of 1.02 and 0.96 which is approximately 1.0 and there was a good results agreement between simulation and experimental outcome