The new direction of development of the automotive vehicle ride comfort and driving smoothness is associated with the advancement of the machine parts design, e.g., torsional dampers on friction clutch are considered as essential parts to maintain engine torque peaks as well as operational irregularities and reduce them in a way that is consistent with the comfort and robustness purposes. In this research, a numerical technique is used to simulate new models for rigid disc drive of friction clutch. Shape optimizations of the proposed models are performed to improve the dynamic characteristics of the system and hence the absorption of shocks that occur during clutch engagement. The finite element method has been used to compute the stresses and deformations during the steady-state period, and the vibration characteristics of the rigid disc drives of clutch.
Table of Contents
1. Introduction
2. Mathematical Models
Research Objectives and Topics
The primary objective of this research is to perform shape optimization on new models of rigid drive discs for friction clutches to enhance their dynamic characteristics and shock absorption capabilities during clutch engagement. Through numerical simulation and the finite element method, the study aims to identify optimal design parameters that reduce stress and improve performance compared to a reference model.
- Numerical simulation of rigid friction clutch disc models
- Shape optimization to improve system dynamic characteristics
- Analysis of stress distribution and material deformation
- Evaluation of shock and vibration absorption during clutch engagement
- Comparative analysis of different disc geometries
Excerpt from the Book
1. Introduction
A popularly application for the clutch is in automotive vehicles where it is used to connect the engine and the gearbox, and used also extensively in production machinery of all types. The new direction of development of the automotive vehicle ride comfort and driving smoothness is associated with the advancement of the machine parts design, e.g., rigid drive disc of clutch is considered as essential part to transfer torque from the driver to driven in a way that is consistent with the comfort and robustness purposes [2-4].
Naunheimer and Bertha [1] presented the design procedures for the friction clutch, and the parameters that effect on the clutch performance. Also, they present different type of design for the clutch plate for passenger cars (Fig. 1 a–c) and commercial vehicles (Fig. 1. d–e).
There are many companies produce the rigid clutch plate passenger cars (Fig. 1.c) such as LUK Limited Liability Corporation [5] and ZF SACHS Race Engineering Limited Liability Corporation [6]. The failures of the rigid drive disc of clutch has been investigated using finite element method. Three-dimensional model have been used to obtain the stress and deformations [7 & 8].
In this research, a numerical technique is used to simulate new models for rigid disc drive of friction clutch. Shape optimizations of the proposed models are performed to improve the dynamic characteristics of the system and hence the absorption of shocks that occur during clutch engagement. The finite element method has been used to compute the stresses and deformations during the steady-state period, and the vibration characteristics of the rigid disc drives of clutch.
Summary of Chapters
1. Introduction: This chapter introduces the application of clutches in automotive vehicles and establishes the necessity of optimizing rigid drive discs for better ride comfort and mechanical robustness.
2. Mathematical Models: This chapter defines the reference and suggested disc models, outlining the simulation parameters and the subsequent optimization process to determine the best design geometry.
Keywords
Friction clutch, Rigid drive disc, Shape optimization, Finite element method, Automotive engineering, Torque transfer, Stress analysis, Deformation, Dynamic characteristics, Vibration absorption, Numerical simulation, Mechanical design, Clutch engagement, Ride comfort, Steady-state stress
Frequently Asked Questions
What is the core focus of this research?
This research focuses on the design optimization of rigid drive discs for automotive friction clutches to improve vehicle ride comfort and mechanical reliability.
What are the primary thematic areas covered?
The central themes include clutch design procedures, finite element method (FEM) analysis for stress and deformation, and the application of numerical techniques for shape optimization.
What is the primary goal of the study?
The goal is to develop and analyze new models for rigid clutch discs that minimize stress while optimizing the system's dynamic performance and shock absorption.
Which scientific methods are applied?
The research employs numerical simulations using SolidWorks and the finite element method (FEM) to compute material stresses and displacement characteristics.
What is covered in the main section of the paper?
The main section details the establishment of mathematical models for various disc geometries, the execution of shape optimization processes, and the comparative stress evaluation of the chosen designs.
Which keywords define this work?
Key terms include rigid drive disc, friction clutch, shape optimization, finite element method, and dynamic characteristics.
Why was the finite element method chosen for this study?
The finite element method was chosen because it allows for the precise calculation of stress and deformations in the disc models under operational loads, which is essential for determining optimal design parameters.
What differentiates the suggested models (3 & 4) from the others?
Models 3 and 4 were selected for optimization because their initial simulation results demonstrated lower stress levels compared to models 2 and 5.
What is the conclusion regarding Model 3 versus Model 4?
Model 3 significantly reduces maximum stress by 93% with a minimal mass increase, whereas Model 4 provides superior tensional elasticity for better vibration and shock absorption.
How is the material behavior modeled for the clutch discs?
For the purpose of simulation, the rigid clutch disc models are assumed to consist of a homogeneous and isotropic material with defined physical properties.
- Citar trabajo
- M. SC Oday Ibraheem Abdullah (Autor), 2014, Design Optimization of the Rigid Drive Disc of Clutch, Múnich, GRIN Verlag, https://www.grin.com/document/281959
