dan penggunaan tekanan pada fluida Konsep Hidrolik dan penggunaan tekanan pada fluida
Sifat penting tekanan pada fluida Fluida akan meneruskan tekanan ke semua bagian , dengan mengabaikan bentuk wadahnya Sebuah gaya dapat diterapkan dapat diterapkan kapan saja di inginkan Gaya dapat berlipat bergantung luas area kontak dari piston yang di pergunakan untuk menekan air
Penerapan penggunaan hidrolik Rem Mobil Dongkrak Fork lift Lift Bulldozer Kamera Televisi
Bagaimana Rem Mobil Bekerja Sebuah gaya yang cukup kecil diterapkan pada pedal rem yang akan menekan piston pada area yang cukup kecil Piston akan menekan cairan rem Tekanan akan menyebar ke seluruh bagian minyak rem Tekanan akan bekerja pada empat piston dengan area yang lebih besar dan melipat gandakannya Sebagaimana tekanan yang terdistribusi merata, rem akan bekerja dengan kekuatan yang sama
Hydraulic brake The diagram shows a simple brake where a pedal will push down on the smaller master piston The force pushing down will put the liquid under pressure The pressure is transmitted through the liquid and against the slave piston The pressure causes the slave piston to exert a force where it is needed
Using the formula P=F/A What is the pressure exerted on the liquid by the slave piston? Answer: Pressure = 10N / 5cm2 = 2 N/cm2 Calculate the area of the slave piston that will lift a 100N load Area = force / pressure = 100N / 2 N/cm2 10N Slave piston Master Piston Is 5 cm2
More questions on hydraulics Master piston = 10cm2 Slave piston = 100cm2 What will the force (F1) need to be to exert a pressure of 20 N/cm2 ? Calculate the weight (F2) that can be lifted by the slave piston. Answers: 1. Force = 20 N/cm2 x 10cm2 = 200N 2. Force = 20 N/cm2 x 100cm3 = 2000N
Summary of the principles of hydraulics Pressure is transmitted throughout a liquid A force may be applied anywhere to the liquid All hydraulic systems use a small master piston and a large slave piston A small force is used to create a very big force The small master piston is used to apply a force The slave piston is always bigger than the master piston The larger slave piston will multiply the original force put on the master piston
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