So sánh phương pháp

	Phân tích tần số riêng	Thiết kế để Sản xuất và Lắp ráp
Lĩnh vực	Sản xuất chế tạo	Sản xuất chế tạo
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1975	1994
Người khởi xướng	Clough, R. W., Penzien, J.	Boothroyd, G., Dewhurst, P.
Loại	Computational method for structural dynamics	Systematic approach to cost-effective product design
Công trình gốc	Clough, R. W., & Penzien, J. (1975). Dynamics of Structures. McGraw-Hill. ISBN: 0-07-011394-7	Boothroyd, G., Dewhurst, P., & Knight, W. A. (1994). Product Design for Manufacturing and Assembly (1st ed.). Marcel Dekker. ISBN: 0-8247-9157-6
Tên gọi khác	Eigenvalue analysis, Frequency response analysis, Natural frequencies	DFMA, Design for manufacturability, DFA
Liên quan	4	4
Tóm tắt	Modal analysis is a computational and experimental method for determining the natural frequencies and associated mode shapes of a mechanical structure. By decomposing structural vibration into its fundamental modes (natural oscillation patterns), engineers can predict resonance frequencies, assess dynamic response to external forces, and design structures to avoid problematic vibrations. Developed rigorously by Clough and Penzien in their foundational work on structural dynamics, modal analysis is essential for designing robust mechanical systems.	Design for Manufacturing and Assembly (DFMA) is a systematic methodology for creating products that are inherently easier and less expensive to manufacture and assemble. Developed by Boothroyd, Dewhurst, and Knight, DFMA evaluates design choices based on their impact on production cost, quality, and speed, guiding designers toward solutions that balance performance, manufacturability, and economics.