So sánh phương pháp

	Tham số Denavit-Hartenberg	Phân tích tần số riêng
Lĩnh vực	Sản xuất chế tạo	Sản xuất chế tạo
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1955	1975
Người khởi xướng	Denavit, J. and Hartenberg, R. S.	Clough, R. W., Penzien, J.
Loại	Mathematical convention for describing articulated mechanisms	Computational method for structural dynamics
Công trình gốc	Denavit, J., & Hartenberg, R. S. (1955). A kinematic notation for lower-pair mechanisms based on matrices. Journal of Applied Mechanics, 22(2), 215-221.	Clough, R. W., & Penzien, J. (1975). Dynamics of Structures. McGraw-Hill. ISBN: 0-07-011394-7
Tên gọi khác	DH parameters, DH convention, Robot kinematics convention	Eigenvalue analysis, Frequency response analysis, Natural frequencies
Liên quan	4	4
Tóm tắt	The Denavit-Hartenberg (DH) convention is a systematic mathematical method for assigning coordinate frames to the links of an articulated robot or mechanism, enabling compact representation and computation of forward and inverse kinematics. Introduced by Denavit and Hartenberg in 1955, this method uses only four parameters per joint to describe the spatial relationship between adjacent links, dramatically simplifying kinematic analysis and control of complex multi-jointed systems.	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.