Vibration Analysis of Rescue Basket in High-Rise Building Rescue Process Using a Personal Winch

Nguyen, Van Tinh; Duong, Truong Giang; Nguyen, Tam W.

doi:10.15866/ireme.v17i3.23417

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cone angle b and the coefficient of friction µ need to satisfy the condition for no jamming. The design parameters of the cone brake are consistent with the structure and load in [12][13][14] with the conditions of the relation (20). The braking torque is compared with the 2a surface disc brake designed in [12][13][14].…”

Section: Description Of the Problemmentioning

confidence: 91%

“…Research in [11] also builds a model, finds the relationship between braking force and cone height, and finds the largest braking force. The authors in [12][13][14] have designed a rescue equipment system. The study in [12] calculated the design of a hand winch for personal rescue, and the study in [13] optimized the gear transmission mentioned in [12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of the Taguchi method to determine optimized parameters for designing brake of hand winch

Duong

2023

Eureka: PE

View full text Add to dashboard Cite

Brakes are used to stop movement or adjust speed to ensure safety for mechanisms or machines. In this paper, the brake applied to hand winch will be studied. This hand winch has been studied by us in previous stages. However, the disadvantage of the winch is that the drum wall attached to the friction surfaces is not reasonable in terms of layout, as well as the parameters to optimize braking moment have not been calculated. A new brake structure is proposed in this study to solve the above problem. This structure does not use the drum wall as the friction surface. It does not affect the drum wall and it is easy to replace the friction surface when necessary. Instead, the cone brake is suitable for the structure brake and the size, structure, and design load. To determine the optimal parameters of the brake structure, the article will analyze the theory, and experiment design. The objective function is the maximum braking torque. Constraints are hand winch parameters, installation, friction surface material, and loading conditions. The corresponding factors are coded according to the Taguchi method, the orthogonal planning matrix is L18. Using Minitab software to analyze the Signal/Noise ratio, the study determined the optimal values for five factors including screw thread pitch, coefficient of friction (screw thread), cone angle, friction coefficient (brake), and large cone brake radius. Research results have selected the optimal parameters of the brake, and the optimal values have satisfied the constraints. The torque at the cone brake is greater than that of the disc brake approximately 37.7 %. The pressure at the friction surface is reduced by about 55 % compared to the disc brake surface

show abstract

Section: Description Of the Problemmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%