Set the Volume of Piston Head Equation Using the PTC Mathcad Equation Editor
You can use the following keyboard shortcuts in the Equation Editor:
Operator/Constant

Description

Keyboard Shortcut

xy

Subscript

Press CTRL + MINUS SIGN

xy

Superscript (Exponential)

Press SHIFT + ^

x:=y

Definition

Press SHIFT + :

x*y

Multiplication

Press SHIFT +* to insert a multiplication operator

π

Constant (π)

Press p + CTRL+ g to insert the Greek letter Pi (π)

On Page 3 of the worksheet, the Volume of each cylinder (Vcyl) function does not take into account the additional volume created by the caved spherical cap profile of the piston head or the engine block.
The Volume of engine block (Veb(heb)) function has already been defined. The task is to define the Volume of piston head (Vph(hph)) function in the provided space.
1. Click in the area next to Volume of piston head.
2. Type V.
3. On the
Math tab, in the
Style group, click
Subscript. Type
ph.
4. Type (h.
5. On the
Math tab, in the
Style group, click
Subscript. Type
ph.
6. From the
Operators and Symbols group, click the arrow next to
Operators, and select
Definition from the
Definition and Evaluation area.
7. From the
Operators and Symbols group, click the arrow next to
Constants, and from the
Math area, select
Pi.
8. Type
/ 6 and press RIGHT ARROW on your keyboard once, to get the blue pointer in the position shown.
9. Select
Operators, from the
Operators and Symbols group, and in the
Algebra area, select
Multiplication.
10. Type
h, click
Subscript from the
Style group and type
ph.
11. Select
Operators from the
Operators and Symbols group, and in the
Algebra area, select
Exponentiation and type
2. Press RIGHT ARROW on your keyboard once to move the blue pointer out of the exponent.
12. Click the arrow next to
Operators from the
Operators and Symbols group, and in the
Algebra area, select
Multiplication.
13. Type (3.
14. Click the arrow next to
Operators from the
Operators and Symbols group, and in the
Algebra area, select
Multiplication.
15. Type
d, click
Subscript from the
Style group, and type
phcap.
16. Press SPACEBAR once to select dphcap, and then press the SPACEBAR a second time to select both the 3 and the dphcap. Type
/ 2.
17. Press RIGHT ARROW once to move the blue pointer out from the denominator and type
–h. Click
Subscript from the
Style group and type
ph.
. The
volume of piston head equation should look as follows: