Machine Foundation Design - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. An overview of Design of Machine Foundations gathered from various sources is consolidated in the presentation. This is very useful for beginners. The presentation broadly covers concrete foundations for centrifugal and reciprocating type ...

Imperfect designing of machine foundations based on empirical formulations has led to the problem of troublesome vibrations in the existing foundations. Recent developments in the field of structural and soil dynamics have helped establish basic design principles for various types of machine foundations. In order to achieve efficiency and economy in the design, it is imperative that the ...

🕑 Reading time: 1 minuteThe following general requirements of machine foundations shall be satisfied and results checked prior to detailing the foundations. 1. The foundation should be able to carry the superimposed loads without causing shear or crushing failure. 2. The settlements should be within the permissible limits. 3. The combined centre of gravity of […]

Chapter 2—Foundation and machine types, p. 351.3R-4 2.1—General considerations 2.2—Machine types 2.3—Foundation types Chapter 3—Design criteria, p. 351.3R-7 3.1—Overview of design criteria 3.2—Foundation and equipment loads 3.3—Dynamic soil properties 3.4—Vibration performance criteria 3.5—Concrete performance criteria

Module 7 : Design of Machine Foundations Lecture 32 : Machine foundation [ Section 32.1 : Introduction ] Categories of machine foundations Reciprocating machines: It produces periodic unbalanced force and operating frequency is 600rpm. For designing unbalanced force is taken as varying sinusoidally. Impact machines

The design of a paper machine foundation follows an iterative process involving the following main steps: 1. Determine the magnitude and characteristics of the dynamic loads and establish the foundation design performance criteria. These are specified by the machine manufacturer. 2. …

Precise machine alignment should be maintained, and foun-dation vibrations should be controlled to ensure proper func - tioning of the machinery during its design service life. Successful design of such foundations for dynamic equip-ment involves close collaboration and cooperation among machine manufacturers, geotechnical engineers, engineers,

In this article we are discuss about "Design Criteria of Machine Foundation". In the design a rigid block is assumed to rest directly in the soil. When acted by dynamic loads the rigid block as shown in Fig. 2 may vibrate in any one of six degrees of freedom and the complete evaluation of the response of the block is very complex.

Design of Machine Foundations on Piles. A practical method for the analysis of pile-supported foundations subjected to dynamic loadings is described. The method uses a single-degree-of-freedom mass-spring-dashpot model of a form similar to that used for shallow foundations to analyze the response of the actual system. The method of analysis uses the concept of an equivalent cantilever, …

In this chapter, the analysis, design and construction of machine foundations are discussed, outlining their requirements and design criteria. Other relevant discussions include the isolated foundations as well as pile foundations for machines transmitting dynamic loads and moments; conventional and modern approaches of analysis and design of ...

A. u g 2 0 1 3 A.PAVAN KUMAR MACHINE FOUNDATION ANALYSIS-ONLY PRACTICAL VIEW Objective of machine foundation analysis Types of machine foundation Codes available DIN 1024,IS 2974,VDI Guidelines,ACI 351 Machine foundation analysis Modelling options Solid element,Shell Element Softwares Available ANSYS,SAP 2000, etc Real Problem -2*125MW Turbo Generator …

Hire an experienced Design and Build contactor that has a proven track record with precision machine tool foundations. If the foundation is a below floor design with a metal surround deck make sure to leave a sufficient gap between the deck and the machine base. They should never touch as this can cause problems with leveling and alignment.

Design of Machine Foundations as per IS:2974 (Part-1)-1969 (contd.) Vibration criteria: It is expected to have a foundation which is having natural frequency much higher or lower than the operating frequency of the machine. UNDER TUNED 2 < 0.5 for machine OVER TUNED < 0.6 for less important machine > 2 for important machine

Machine Foundation. The design of machine foundation involves careful study of the vibration characteristics of the foundation system. Relevant data required for the design and construction of the machine foundation of machine should be obtained from the manufacturer of the machine, prior to the start of design. All parts of machine foundation should be designed for maximum stresses due to …

Foundation provided below the superstructure of vibrating and rotating machines for installation, is known as machine foundation. It essentially consists of a mass of concrete. Design of machine foundation involves consideration of static load and kinetic forces.

This chapter covers the geotechnical design of bridge foundations, cut-and-cover tunnel foundations, foundations for walls, and hydraulic structure foundations (pipe arches, box culverts, flexible culverts, etc.). Chapter 17 covers foundation design for lightly loaded structures, and Chapter 18 covers foundation design for marine structures.

and poor foundation design is one of them. Recent discussions with indus-try consultants revealed that many challenges in designing and imple-menting effective foundations exist. One challenge includes the lack of in-dustry specifications to guide equip-ment users in the design of founda-tions where dynamic loads will be used. As a result, many ...

The design of machine foundations is different from the design of classical foundations such as buildings in terms of their loading, structural analysis, behavior, and vibration limits.

Design Services Foundation Design The function of a foundation is not only to support the weight of the machine/equipment, but also to keep the vibration levels and dynamic displacement of the isolation system within acceptable limits. Designing foundations supporting machines that can produce static and dynamic loads requires sound

2 About the workshop The workshop will be useful for the post - graduate students of Civil Engineering, Mechanical Engineering and Production Engineering to have a better understanding of the current state-of-the-art with respect to the analyses and design of machine foundations.

a. Before starting work on the design of any machine, get thoroughly familiar with what the machine is intended to accomplish and what special requirements or limitations must be considered. b. Make free-hand sketches of various ways the machine might be constructed, at the same time making any preliminary calculations which might be required to

The weight of the machine and the self weight of foundation block, the live load of platforms and any other loads on the foundation. Unbalanced forces and couples supplied by machine manufacturer. Centrifugal Machines: Vertical pseudodynamic design force is applied at the shaft, it can be taken as 50% of the machine assembly dead weight.

Normally machine foundation has 6 degree of freedom (known as rigid body modes) and above equations need to be solved separately for all rigid body modes. Accordingly, we can say that for successful operation two aspects become critical for foundation design: 1) The machine itself should run smoothly (round the clock); 2) The

Rotating Machine and Hammer Foundations: Harmonic excitations due to rotary machines; response of rigid foundations in 1DOF; evaluation of the effects of vibration; coupled response of rigid foundations in two degrees of freedom; types of hammers and hammer foundations; design criteria; mathematical models; impact forces and impact eccentricity.

Block foundation | Types of Machine Foundation. A block foundation consists of a pedestal resting on a footing. If more than one machine of similar nature is to be installed in a workshop, they can be profitably mounted on one continuous mat. A block foundation has a large mass and smaller natural frequency. Usually block foundation is provided ...

AbstractThis paper presents a practical design of machine foundation subjected to varying harmonic loads. The dynamic analysis of machine foundation is performed using an analytical method. The varying harmonic loads are generated by varying the speed of the machine as per the performance requirements of the plant, which essentially results in operating the machine at […]

vibrating machine foundation design recommendation cbailey82 (Structural) (OP) 21 Jan 19 14:27. Is the rule of thumb for rotating machine foundations 3 times the weight of the machine mean 3 times the total weight of the machine (moving parts plus stationary parts) or just 3 times the weight of the moving parts of the machine?

DESIGN AND CONSTRUCTION OF MACHINE FOUNDATIONS PART I FOUNDATION FOR RECIPROCATING TYPE MACHINES ( Second Revision) e, ~'O R E W 0 R D 0.1 This Indian Standard ( Part I ) ( Second Revision) was adopted by the Indian Standards Institution on 26 July 1982, after the draft finalized by the Foundation Engineering Sectional Committee had been approved

analysing foundation vibrations, and provide considerable justification for the use of sophisticated numerical formula- tions in the design of machine foundations. On the other hand, little if any progress has been made in reliably estimating dynamic machine loads and improving

Yet the stakes are high: The failure of an incorrectly designed machine foundation can lead to damaged equipment and to expensive downtime. Many engineering firms that specialize in the design of industrial facilities and heavy-equipment foundations have developed a wealth of in-house design standards, but this information is not available to ...

In design of machine foundation, it is vital to reduce the natural frequency of the soil beneath the foundation, which by doing so the vibrations produced can be easily dealt with. One such treatment is to prepare a layered soil beneath by

1 GENERAL DESIGN REQUIREMENTS. 2 FOUNDATIONS AND STRUCTURES FOR VIBRATING MACHINERY. 2.1 Scope. 2.2 Definitions. 2.3 Design criteria for all heavy machinery. 2.4 Design criteria for reciprocating machinery. 2.5 Design criteria for rotary machinery. 2.6 Design criteria of light vibrating machinery. 3 LOADING OF MACHINE FOUNDATIONS.