Int J Adapt Control Signal Process 35:484–497. Kumar S, Matouk AE, Chaudhary H, Kant S (2021) Control and synchronization of fractional-order chaotic satellite systems using feedback and adaptive control techniques. Saad MS, Jamaluddin H, Mat Darus IZ (2015) Online monitoring and self-tuning control using pole placement method for active vibration control of a flexible beam. Zhang K, Wu S, Wu Z (2021) Multibody dynamics and robust attitude control of a mw-level solar power satellite. Zhang K, Scorletti G, Ichchou MN, Mieyeville F (2014) Robust active vibration control of piezoelectric flexible structures using deterministic and probabilisticanalysis. Xu S, Cui N, Fan Y, Guan Y (2018) Flexible satellite attitude maneuver via adaptive sliding mode control and active vibration suppression. įan L, Huang H, Sun L, Zhou K (2019) Robust attitude control for a rigid-flexiblerigid microsatellite with multiple uncertainties and input saturations. Liu M, Cao D, Zhang X, Wei J, Zhu D (2021) Nonlinear dynamic responses of beamlike truss based on the equivalent nonlinear beam model. Liu M, Cao D, Li J, Zhang X, Wei J (2022) Dynamic modeling and vibration control of a large flexible space truss. Liu M, Cao D, Wei J (2021) Survey on equivalent continuum modeling for truss structures and their nonlinear dynamics and vibration control. Wang B, Liu Z, Zheng P (2022) Rigid-flexible coupling dynamic modeling and analysis of dumbbell-shaped spacecraft. Koroteev A, Oshev YA (2015) Popov: nuclear power propulsion system for spacecraft. The vibration of dumbbell spacecraft can be actively suppressed by CSVS + DCC active vibration suppression. Compared with bang-bang control, the stabilization time is shortened by 25.76%, and the vibration amplitude at the center of mass of the system is reduced by 53.06%. The large angle attitude maneuver of dumbbell spacecraft can be completed by CSVS + DCC method. Finally, numerical simulation is used to verify the superiority and effectiveness. The dumbbell-shaped spacecraft is divided into control sub-modules, and the dynamic model for distributed control is established according to Newton–Euler method and Lagrange’s equations of second kind The distributed controller is designed by combining graph theory and consistency theory, and the stability of the closed-loop system is analyzed based on Lyapunov theory CSVS + DCC method is proposed to suppress the vibration of dumbbell spacecraft. To suppress the vibration of dumbbell-shaped spacecraft by combining distributed cooperative control (DCC) and component synthesis vibration suppression (CSVS). Although there really isn’t anything unduly difficult about most minor truss rod adjustments, for our purposes here we suggest having it done by a qualified technician or repair person.įind some of the tools you'll need to measure neck relief here. Should you measure no relief at all or relief amounts in excess of those listed here, you probably need to have the truss rod adjusted. Repeat this process on the low E string (for both guitars and bass guitars).įor Fender Stratocaster and Telecaster guitars, the proper size of this gap varies slightly with fingerboard radius: Neck Radiusįor Fender bass guitars, the optimal measurements again vary slightly according to fingerboard radius: Neck Radius With your free hand, use the feeler gauge to measure the gap between the bottom of the string and the top of the eighth fret (the fret wire itself, not the fingerboard), which is where the curvature should be deepest. Affix the capo to the first fret and depress the high E string at the last fret (G string on a bass guitar), or where the neck joins the body (often the 17th fret on Stratocaster and Telecaster guitars). Only two tools are needed to check neck relief - a capo and a feeler gauge. It’s a useful measurement because, for example, if you have fret buzzing going on, it’ll give you a good idea of how much you’ll need to have the truss rod tweaked. A simple routine measurement you can perform yourself on your guitar or bass is the amount of neck relief, which is the amount of curvature along the length of the neck.
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