November 2020

The spring characteristic shows how the metal spring behaves at work. It describes the relationship between spring force ( F ) and spring deflection ( s ). Depending on the type of spring or the spring system used, a distinction is made between linear ( b ), progressive ( a ), degressive ( c ), or combined spring characteristic. A progressive spring characteristic ( a ), which increases the force as the deflection increases, is obtained with a conical spring design and with one mixed circuit of single spring n. A linear spring characteristic ( b ), which releases the force evenly as the compression increases, is obtained with cylindrical design and with one row or parallel connection . A degressive spring characteristic ( c ), which reduces the force as the compression increases, can be achieved with a disc spring column . A combined spring characteristic ( 5 ), which abruptly changes the force properties in certain compression states, can be achieved with combined spring designs and special rows - or mixer circuits can be achieved by single springs. The spring characteristic ( 4 ), with a high preloaded force and a low force curve, is achieved with a soft preloaded spring The spring rate ( R ) is the slope of the spring characteristic in the spring diagram. With a linear spring characteristic, the spring rate is constant. Springs with a curved spring characteristic have a variable spring rate. With a linear spring characteristic, the following applies: With compression springs and tension springs With torsion springs / torsion springs For more information: Calculation of the spring rate for cylindrical metal springs with a linear spring characteristic Calculation of the total spring rate at parallel -, rows - and mixer circuits Types of metal springs Spring calculation program WinFSB

Month: November 2020

Fatigue strength

Spring characteristic