DESIGNING AN UPPER STAGE STEERING SYSTEM FOR A FORMULA FSAE CAR

2021 ◽  
Vol 113 ◽  
pp. 205-218
Author(s):  
Greg WHEATLEY ◽  
Ahmed ALI
Keyword(s):  
Finite Element Analysis ◽  
Steering System ◽  
Normal Operation ◽  
Steering Wheel ◽  
Release Mechanism ◽  
Key Factors ◽  
Element Analysis ◽  
Input Force ◽  
Final Design ◽  
Upper Stage

The objective of this work is to design an upper stage steering system for the Formula FSAE car “Omega” that will effectively translate driver input force to the rack and pinion. The system consists of a steering wheel, steering shafts, universal joints, a quick release mechanism, and connection points to the car. Critical loads have been determined, and the final design has been validated using finite element analysis to ensure the safety of the assembly during normal operation and worst-scenario cases. The design key factors were performance, weight, cost, ergonomics, maintainability, manufacturability and reliability.

Forging the Way to a Better Axle

2005 ◽  
Author(s):  
Amy L. Miller ◽  
David S. Strayer ◽  
Todd Williams
Keyword(s):  
Finite Element Analysis ◽  
Mass Transit ◽  
The United States ◽  
Design Criteria ◽  
Element Analysis ◽  
Transit Systems ◽  
Industry Standard ◽  
Final Design ◽  
And Performance ◽  
Innovative Concept

Historically, rail “axles” for the center truck of Low Floor Mass Transit Cars have been manufactured and supplied by European companies. The industry standard is a fabricated assembly comprised of forged ends welded to a structural steel center of various shapes. Several factors have enticed one domestic supplier to look for a better way to manufacture the axle in the United States. The word axle will be used in this paper, although technically the word “support” is more valid as an “axle” is assumed to rotate and this “support” does not. Currently, Penn Machine is producing its latest support, a one piece forged axle with the properties of the previous welded assembly. Many considerations, including material type, manufacturability, stress and deflection, weight, and dimensional fit, were made prior to approval of the final design. Because previous models were designed and manufactured overseas, European design criteria and materials had to be considered, and in some cases modified for the domestic market. The analysis approach began with a European calculation method. Additional analysis was performed to evaluate modifications. Finite Element Analysis was conducted to refine the design and to investigate material reducing options. The proposed paper outlines the design process used in bringing this new and innovative concept off the boards and into reality. It is the hope of the authors that others will recognize domestic opportunities by observance of the process used to create the new axle. To date, the new axle is being proposed for use on two new transit systems. The cars will be tested with the new axle to insure safety and performance.

Combined Lifting Analysis and Load Test of a Hook Foundation in a GRP Hull

2006 ◽  
Vol 5-6 ◽  
pp. 101-106
Author(s):  
S. Quinn ◽  
S.S.J. Moy ◽  
Keith Piggott
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Load Test ◽  
Element Analysis ◽  
Detailed Design ◽  
Reinforced Polymer ◽  
Design Changes ◽  
Physical Testing ◽  
Final Design

The combination of simulation and physical testing is powerful. In this case study Finite Element Analysis (FEA) and a 96 tonne load test were used to prove that the lifting points for a new semi-rigid inflatable rescue craft met their statutory requirements before full manufacture. The FEA was used to optimise the detailed design of the lifting points, without the need to test each different configuration, and the load test was used to prove the final design in practice, before full manufacture. The FEA showed that the bearing stresses in the Glass Reinforced Polymer (GRP) hull of the initial design were unacceptable and appropriate design changes were made from further analysis. However, to suitably risk manage the project a full load test was required to demonstrate that the revised lifting point details met their statutory requirements, before full manufacture of the new craft.

scholarly journals Seismic Finite Element Analysis of Lightning Arrester Combination by Casing and Pillar Insulator

2022 ◽  
Vol 2148 (1) ◽  
pp. 012044
Author(s):  
Xiaojun Zhang ◽  
Zhenlin Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Electrical Equipment ◽  
Relative Displacement ◽  
Normal Operation ◽  
Seismic Action ◽  
Peak Acceleration ◽  
Element Analysis ◽  
Maximum Relative Displacement

Abstract The seismic performance of electrical equipment in substations has a great impact on the normal operation of the whole substation. The results of the modal analysis show that the fundamental frequency of the three devices is in the range of 0.9Hz∼1.1Hz. The maximum stress of the casing for the three devices is respectively 55.43MPa, 45.39MPa, 35.26MPa, when the peak acceleration 0.4g seismic action is verified. The maximum stress of insulator is respectively 47.01MPa, 62.72MPa and 30.85MPa, and the maximum relative displacement of the top for the equipment is 617.2mm.

Finite Element Analysis of Composite-Concrete Adhesion

2002 ◽  
Author(s):  
Eyassu Woldesenbet ◽  
Haftay Hailu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Load Transfer ◽  
Composite Plates ◽  
Alternative Methods ◽  
Normal Operation ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Cost

The need for the rehabilitation of bridges and structures is becoming more apparent as the number of deficient civil structure grows and the cost of replacement is becoming prohibitive. These leads to the search of alternative methods, such as rehabilitation, to put the deteriorated structures back to normal operation with the least possible cost. One such method is the use of composite plates adhesively bonded to concrete as reinforcement and to prevent the propagation of crack within the concrete structure. In this study the load transfer and the resulting stress distribution in the composite-concrete adhesion system is investigated using the finite element method. The effects of the different bond parameters are studied using the finite element. In addition, results of the finite element analysis are proved to be in agreement with the analytical solution of shear stress distribution in the adhesion layer that was developed in previous studies by the authors.

Integrated Design of Active And Passive Gripper For Robotic Pick And Place Applications

2021 ◽  
Author(s):  
Mahmud Huseynov
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Integrated Design ◽  
Acrylonitrile Butadiene Styrene ◽  
Element Analysis ◽  
Pick And Place ◽  
Final Design ◽  
Stability Issues ◽  
Butadiene Styrene

Abstract Grippers developed in recent years either cannot achieve a complete universality due to grasping stability issues or are designed with excessive complexity. In this paper, the design of a three-fingered tendon-driven integrated gripper based on the concept of integrating Universal Active Gripper (UAG) with Universal Passive Gripper (UPG) fingertips, which ensures achieving adjustable fingertip stiffness and is practically proven to solve grasping stability issues, is proposed. Furthermore, kinematic, dynamic, and force analyses was conducted to calculate the specifications of the designed gripper, which was compared to four commercial grippers. Finite element analysis was also carried out for the designed gripper. When the final design of the gripper was compared to that of Hou et al.'s (2018) (the only comparable design present for the integrated gripper), one crucial similarity noted was based on both designs adopting the same kinematic configuration. This fact further increases the confidence in the optimal development of the designed gripper. According to FEA results, the maximum stress acting on the components of the gripper was 15.78 MPa, 39.45% of the yield stress of Acrylonitrile Butadiene Styrene (ABS). In conclusion, it was theoretically established that the designed gripper with the tendon-driven actuation is operating efficiently.

Slot/Pole Ratio Design of Tubular Permanent Magnet Linear Synchronous Motor

2011 ◽  
Vol 179-180 ◽  
pp. 1303-1308
Author(s):  
Guang Hui Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Permanent Magnets ◽  
Synchronous Motor ◽  
Current Analysis ◽  
Key Factors ◽  
Element Analysis ◽  
Linear Synchronous Motor ◽  
Element Technique

In terms of various applications of linear motor, there are different design objectives with varying concerns. In this paper, the objective is to obtain the slot/pole ratio for tubular permanent-magnet linear synchronous motor (TPMLSM). Direct-axis current analysis and finite element technique are utilized to investigate the optimal slot/slot ratio design of the TPMLSM. Based on electrical angle drift of slots between two neighboring permanent magnets, the slot/pole ratio (SPR), one of the key factors in design, is deduced by direct-axis current analysis. In contrast to those experiment methods, the proposed technique is convenient and swift; moreover it is proven that the method is efficient by 2-D axisymmetic finite element analysis.

Static and Dynamic Finite Element Analysis on the Steering System of Automobiles

2011 ◽  
Vol 121-126 ◽  
pp. 3498-3501
Author(s):  
Li Xin Guo ◽  
Guang Hao Ji ◽  
Lei Ping Zhao ◽  
Jin Li Li
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Steering System ◽  
Steering Wheel ◽  
Element Analysis ◽  
Dynamic Finite Element Analysis ◽  
Dynamic Analyses ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

The steering system of automobiles might vibrate under external excitation loading. Severe vibration of the steering system maybe bring the drivers uncomfortable and even result to noise and damage of some parts of the steering system. In the same time, it can not be satisfied with NVH design requirement of automobiles. In this study a three- dimensional finite element model of a steering wheel of automobiles was established and finite element static and dynamic analyses were conducted in order to validate dynamic characteristics and strength of the steering system. The simulation results can provide a reference for structural design of the steering system.

Research on the Radial Accuracy and Stiffness of HSK Tool System in High Speed Machining

2011 ◽  
Vol 480-481 ◽  
pp. 1335-1340 ◽  
Author(s):  
Chun Jiang Zhou
Keyword(s):  
Finite Element Analysis ◽  
High Speed ◽  
Influence Factor ◽  
High Speed Machining ◽  
Clamping Force ◽  
Key Factors ◽  
Element Analysis ◽  
Positioning Accuracy ◽  
Radial Stiffness ◽  
Elastic Mechanics

The radial positioning accuracy and stiffness are two important indexes to measure the performance of tool system. Once HSK tool system is in operation, the gap between the spindle and shank will enlarge, thus will make the radial positioning accuracy and stiffness lower. The influence factor leading to this problem is analyzed in this paper through elastic mechanics and finite element analysis. It can get from the analysis that the double-position structure and certain amount of interface are key factors to keep HSK high radial positioning accuracy and stiffness. In addition, the influence of clamping force and rotate speed to radial stiffness is presented that higher speed and larger clamping force make the radial stiffness better. Finally, the paper has verified the analysis of radial stiffness through the experimental measurement with different fit of HSK.

Static Analysis of Automotive Steering Knuckle

2014 ◽  
Vol 592-594 ◽  
pp. 1155-1159 ◽  
Author(s):  
S. Madhusudhanan ◽  
I. Rajendran ◽  
K. Prabu
Keyword(s):  
Finite Element Analysis ◽  
Static Analysis ◽  
Experimental Testing ◽  
Steering System ◽  
Static Strength ◽  
Strength Test ◽  
Element Analysis ◽  
Virtual Analysis ◽  
Critical Components ◽  
Sg Iron

Steering knuckle is one of the critical components for a four wheel vehicle which links suspension, steering system, wheel hub and brake to the chassis. While undergoing varying loads subjected to different conditions, it doesn’t affect vehicle steering performance and other desired vehicle characteristics. The static strength test for steering knuckle is necessary to validate the component according to the application. Here, the steering arm static analysis of steering knuckle was done by using finite element analysis (FEA software) and experimental testing by using hydraulic actuators and fixtures. The result from the virtual Analysis and Experimental analysis has been compared and validated for the SG Iron Steering knuckle.

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