Comfort and good handling are always a problem in conventional passive suspension systems. The ideal suspension criterion is to have a short time response, have a small amplitude and eliminate the frequency of causes of motion sickness. The system is only obtained with an active suspension system. The active suspension has an actuator that is able to produce a force to reduce the dynamic force of the vehicle. This actuator will be controlled by a PID active control. The test results showed that the active control was able to reduce the amplitude by 18 mm, passes the Sickness motion frequency and can return to the set point in 0.8 seconds.
Navigasi menjadi bagian yang penting bagi kendaraan. Global positioning system (GPS) merupakan sistem navigasi yang paling banyak digunakan pada kendaraan. Namun dengan akurasi 5-10 meter membuat GPS tidak bisa diaplikasikan dalam bagian sistem kendali pada kendaraan. Penambahan sensor inertia measurement unit (IMU) diharapkan mampu menambahkan akurasi pada Gerakan kendaraan. Kendaran yang digunakan adalah robot beroda dengan sistem nonholonomic. Pada robot ini dipasang Sensor IMU, GPS dan kontroler supaya robot tersebut bisa berputar lalu melaju secara lurus dengan kordinat yang sudah ditentukan. Hasil pengujian didapatkan robot memiliki respon time sebesar 4.1 detik tanpa kontroler dan 2.1 detik dengan kontroler. Akurasi sudut dari 5 menjadi 2 .
One of the tablet manufacturing processes using the wet granulation method is the process of mixing the active ingredient granules, fillers, binders and pelicans. The parameters of the mixing process are important to study because they will affect the physical properties of the tablet. This study studied the effect of the variable duration and the size of the mixing cycle on the physical properties of paracetamol tablets using a 2D double mixer. The results of the analysis and testing showed that the variation of mixing time and the size of the rotation had a significant effect on the flow properties of the granules and the hardness of the tablets. In addition, the optimal parameter results to obtain optimal tablet hardness occurred at 15 minutes of mixing process and 50 rpm of rotation.
Hybrid vehicle uses two types of technology or more as its energy source. The types of technology used in this research are compressed-air technology and electric motor. This research is focused on the compressed-air moving machine using scotch yoke mechanism. This research aims at designing the construction of scotch yoke as an air drive engine, analyzing the engine performance by varying air pressure and the amount of air energy consumption needs, as well as the effect of flywheel addition to the scotch yoke mechanism. The result of this study was the construction of scotch yoke mechanism consisting of 11 components with pneumatic cylinders as a liner drive and then converted to rotational motion by yoke and crank. The performance results were obtained through two tests, namely experimental testing with dyno-test test equipment and theoretical calculations test. The amount of one-time consumption of the compressed air drive system was 0.148 L and the vehicle can travel as far as 1,198 with 2 air tubes with capacity of 14 L.
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