Download - Hidrolik
![Page 1: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/1.jpg)
Konsep Hidrolik
dan penggunaan tekanan pada fluida
![Page 2: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/2.jpg)
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
![Page 3: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/3.jpg)
Penerapan penggunaan hidrolik
• Rem Mobil• Dongkrak • Fork lift• Lift• Bulldozer• Kamera Televisi
![Page 4: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/4.jpg)
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
![Page 5: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/5.jpg)
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
![Page 6: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/6.jpg)
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
Answer:Area = force / pressure = 100N / 2 N/cm2
Master PistonIs 5 cm2
10N
Slave piston
![Page 7: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/7.jpg)
More questions on hydraulics
1. What will the force (F1) need to be to exert a pressure of 20 N/cm2 ?
2. 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
Master piston = 10cm2 Slave piston
= 100cm2
![Page 8: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/8.jpg)
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
![Page 9: Hidrolik](https://reader036.vdokumen.com/reader036/viewer/2022083105/587a44861a28ab00148b5017/html5/thumbnails/9.jpg)
This powerpoint was kindly donated to www.worldofteaching.com
http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.