পদ্ধতির তুলনা করুন

	ফাইনাইট এলিমেন্ট মডেল আপডেট এবং ক্যালিব্রেশন	প্রথম-ক্রম নির্ভরযোগ্যতা পদ্ধতি (FORM)
ক্ষেত্র	নির্ভরযোগ্যতা প্রকৌশল	নির্ভরযোগ্যতা প্রকৌশল
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	2001	1969
প্রবর্তক	John Mottershead and Michael Friswell	Allin Cornell
ধরন	System identification methodology	Reliability analysis method
মৌলিক উৎস	Mottershead, J. E., Link, M., & Friswell, M. I. (2011). The sensitivity method in finite element model updating: A tutorial. Mechanical Systems and Signal Processing, 25(7), 2275-2296.	Cornell, C. A. (1969). A probability-based structural code. Journal of the American Concrete Institute, 66(12), 974-985.
অপর নাম	Model updating, Model calibration, FEM updating	FORM, First-order second-moment method
সম্পর্কিত	4	4
সারসংক্ষেপ	Finite Element Model (FEM) Updating is the process of refining a numerical structural model to match measured behavior (modal properties, vibrations, static displacements) from the physical structure. By comparing computational predictions to experimental data and systematically adjusting uncertain model parameters (material properties, boundary conditions, joint stiffness), engineers create more accurate models for design decisions, damage detection, and life prediction. Formalized by Mottershead and Friswell, FEM updating bridges the gap between idealized computer models and real-world structures.	The First-Order Reliability Method (FORM) is a probabilistic technique for estimating the probability of structural failure given uncertain input parameters. Developed by Allin Cornell in 1969 and refined by Hasofer and Lind in 1974, FORM provides a computationally efficient approximation to the true failure probability by linearizing the limit-state function at the most probable failure point. It has become the cornerstone of modern structural reliability analysis and risk-based design.