scholarly journals LIMIT CYCLE OF SQUARE CONCRETE FILLED STEEL TUBULAR BEAM-COLUMNS SUBJECTED TO LATERAL LOAD WITH CONSTANT CYCLIC DISPLACEMENT

2020 ◽  
Vol 85 (773) ◽  
pp. 981-991
Author(s):  
Masae KIDO ◽  
Keigo TSUDA ◽  
Toshiyuki FUKUMOTO ◽  
Yasuo ICHINOHE ◽  
Koji MORITA
Keyword(s):  
Limit Cycle ◽  
Lateral Load ◽  
Beam Columns ◽  
Cyclic Displacement

scholarly journals BEHAVIOR OF SQUARE CONCRETE FILLED STEEL TUBULAR BEAM-COLUMNS SUBJECTED TO LATERAL LOAD WITH CONSTANT CYCLIC DISPLACEMENT

2019 ◽  
Vol 84 (759) ◽  
pp. 725-735 ◽  
Author(s):  
Masae KIDO ◽  
Keigo TSUDA ◽  
Toshiyuki FUKUMOTO ◽  
Yasuo ICHINOHE ◽  
Koji MORITA
Keyword(s):  
Lateral Load ◽  
Beam Columns ◽  
Cyclic Displacement

Haptic control of steer-by-wire systems using parameter estimation of rack system lateral load model

2021 ◽  
pp. 095440702110275
Author(s):  
Jaepoong Lee ◽  
Kwang Il Kim ◽  
Minjun Kim ◽  
Kyongsu Yi
Keyword(s):  
Parameter Estimation ◽  
Limit Cycle ◽  
Sampling Rate ◽  
Lateral Load ◽  
Steering System ◽  
Haptic Rendering ◽  
Steering Wheel ◽  
Load Model ◽  
Steer By Wire ◽  
Haptic Control

This paper describes a haptic control of steer-by-wire systems for rendering the conventional steering system under various road conditions using parameter estimation of rack system lateral load model. To design the conventional steering system model, the dynamic model of a rack system has been developed as a mass-spring-damper system with a friction model. An online parameter estimation of the rack system was designed to consider the various road conditions in the haptic rendering. In a steering wheel system, which is a haptic device, a limit cycle, and instable behavior can occur due to the sampling rate and quantization. To prevent the limit cycle and instable behavior, a passivity analysis was conducted and constraint conditions of the rendering coefficient was derived. The haptic control algorithm is designed to render the conventional steering system without limit cycles using passivity conditions. The performance of the proposed controller was evaluated via both computer simulations and vehicle tests under various steering conditions. The results demonstrate that the proposed algorithm ensures haptic rendering performance on dry and wet asphalt conditions.

Creep Deflections and Stresses of Beam-Columns

1958 ◽  
Vol 25 (1) ◽  
pp. 75-78
Author(s):  
T. H. Lin
Keyword(s):  
Differential Equation ◽  
Green’S Function ◽  
Creep Strain ◽  
Green's Function ◽  
Lateral Load ◽  
Time Curve ◽  
Beam Columns ◽  
End Conditions ◽  
Integrating Factors

Abstract A method of calculating the creep deflections and stresses of a beam-column is shown. The differential equation of equilibrium in terms of creep strain is solved by the method of integrating factors with Green’s function. For restrained and built-in ends, the end moments are found from the end conditions. An illustrative example is given for a beam-column of an ideal H-section with built-in ends and subjected to uniform lateral load. The deflection-time curve and flange stresses at different instants are shown.

scholarly journals Behavior of square concrete‐filled steel tubular beam‐columns subjected to lateral loads with constant cyclic displacement

2020 ◽  
Vol 4 (1) ◽  
pp. 41-55
Author(s):  
Masae Kido ◽  
Keigo Tsuda ◽  
Toshiyuki Fukumoto ◽  
Yasuo Ichinohe ◽  
Koji Morita
Keyword(s):  
Lateral Loads ◽  
Beam Columns ◽  
Cyclic Displacement

ANALYSIS OF LATERAL LOAD RESISTING ELEMENTS

PCI Journal ◽  
1973 ◽  
Vol 18 (6) ◽  
pp. 54-71
Author(s):  
John V. Christiansen
Keyword(s):  
Lateral Load
Sign in / Sign up

Export Citation Format

Share Document