VDI 2230 (006): Preload Design R1–R6
🧮 在线计算器：VDI 2230 Bolted Joint Calculation — The full 14-step calculation chain (R0–R13), with six strength checks. Preload design: from functional requirement to assembly preload (R1–R6) The 14-step VDI 2230 calculation chain splits into a design part (R0–R6) and a verification part (R7–R13). This article explains the core steps of the design part. 1. R0 — preliminary diameter selection The task of R0 is to preliminarily fix the nominal diameter $d$ based on experience or a simplified method (such as the Kübler equation), and to check the interface limiting dimension (VDI 2230:2015, §4.2, Eq. R0/1, R0/2): ...