Torque

09 Aug 2024 Tags: lock rotor amps 5 hp motor calculator Understanding Load Types: Constant Torque vs. Variable Torque for Efficient Motor SelectionWhen selecting a motor, it’s essential to consider the load type to ensure optimal performance and efficiency. In this article, we’ll delve into the differences between constant torque and variable torque loads, providing insights on how to apply this knowledge when using a 5 HP motor calculator.Constant Torque LoadsA constant torque load is characterized by a consistent resistance to rotation throughout its operating range. Examples of constant torque loads include: Pumps Fans CompressorsThese types of loads require a motor with a consistent torque output to maintain their performance. In the context of a 5 HP motor calculator, constant torque loads are typically represented by a fixed load value (e.g., 3.0 Nm).Formula:To calculate the required motor power for a constant torque load, use the following formula:P = T × ωWhere:P = Power (W)T = Torque (Nm)ω = Angular velocity (rad/s)For example, if you have a pump with a torque requirement of 3.0 Nm and an angular velocity of 100 rad/s, the required motor power would be:P = 3.0 Nm × 100 rad/s ≈ 300 WVariable Torque LoadsA variable torque load exhibits changing resistance to rotation as its operating conditions change. Examples of variable torque loads include: Conveyors Crushers MixersThese types of loads require a motor with adjustable torque output to accommodate their varying demands. In the context of a 5 HP motor calculator, variable torque loads are typically represented by a range of load values (e.g., 1.0-3.0 Nm).Formula:To calculate the required motor power for a variable torque load, use the following formula:P = ∫[T × ω] dtWhere:P = Power (W)T = Torque (Nm)ω = Angular velocity (rad/s)t = Time (s)For example, if you have a conveyor with a torque requirement that varies between 1.0 Nm and 3.0 Nm over a period of 10 seconds, the required motor power would be:P ≈ ∫[1.0-3.0 Nm × 100 rad/s] dt ≈ 500 WChoosing the Right Motor for Your LoadWhen selecting a motor for your application, it’s essential to consider the load type and its characteristics. For constant torque loads, look for motors with a consistent torque output and a fixed power rating (e.g., 5 HP). For variable torque loads, choose motors with adjustable torque output and a range of power ratings (e.g., 2-10 HP).ConclusionIn conclusion, understanding the difference between constant torque and variable torque loads is crucial for selecting the right motor for your application. By applying the formulas provided in this article, you can accurately calculate the required motor power for your load and ensure optimal performance and efficiency.Remember to consult a 5 HP motor calculator or seek expert advice when

Estimated Fastener Bolt Clamp Force Torque Calculator Fastener and Screw / Bolt Design Formula Design DataStrength of Materials See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. This calculator uses a practical starting point for all threaded fastener tightening analysis and uses the basic elastic torque-tension equation.This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. Minimum three (3) inputs are required then select "Find" button to get unknown Similar resources Threaded Fastener Design and Analysis white Paper (39 page, detail engineering anaylsis of fastent torque and forces) Free Membership required Fastener Relation Between Torque, Thread Pitch and Clamping Force Formula and Calculator Fastener Relation Between Bolt Torque and Clamping Force Formula and Calculator per. JIS B 1083Instructions: 1) Enter known number values (two inputs minimum) within center located input boxes. 2) Select associated lower button to calculate unknown value. 3) This calculator may be used with any consistent units, e.g. torque = ft-lbs with ft, in-lbs with inches, N-mm with mm. Force is calculated consistent with units used. Note: This calculator initially assumes dry and perfect threads made from steel and/or zinc plated. Calculated values are approximate. Calculated values do not compensate for materials stiffness. Using this calculator: Keep the units consistant, examples torque (N-mm), fastener dia. (mm) and force (N) torque (in-lbs), fastener dia. (in) and force (lbs) torque (ft-lbs), fastener dia. (ft) and force (lbs) Bolt Torque Force Design Equations Torque Applied (N-mm, in-lbs, ft-lbs) = Fastener Bolt Major Diameter (mm, in., ft) = Coefficient of Friction Steel 0.2 Cadmium 0.16 Lubricated 0.16 - 0.17 = Axial Bolt "Clamp" Force (N, lbs, lbs) = Related: Torque Conversion Torque Design Guidelines Stud Preload Calculator Bolt Preload Tension Equation and Calculator Torque vs Tension Bolts Table Chart SAE J429 Bolts Threaded Hole Fastener Pullout Stress Screw Stress Area 100 ksi & Greater Bolt Stress Area less Than 100 ksi Link to this Webpage: Copy Text to clipboard © Copyright 2000 -2025, by Engineers Edge, LLC www.engineersedge.comAll rights reservedDisclaimer |Feedback Advertising| Contact

To sensors in Flux software.3.4 Magnet behaviorMean values of flux density and magnetic field inside the magnets are computed thanks to sensors in Flux software. Based on these results, demagnetization rate of the magnets is computed.4. Ripple torqueA specific computation is performed to determine the rate of ripple torque precisely.Considering Jd and Jq at the base speed point, a computation is performed over one ripple torque period by using Finite Element modelling (Flux software – Magnetostatic application).Many computation points are considered over the ripple torque period (advanced user input: No. comp. / ripple period).The following steps are performed to determinate the mechanical torque.4.1 Original computation of the electromagnetic torqueThe magnetic torque exerted on a non-deformable part of the study domain is computed by the virtual work method. The torque in a given direction is obtained by deriving the system energy with respect to a virtual displacement of the part in this direction.The magnetic torque Tem is given by the following derivative:δθ = elementary angular displacement,Wm = magnetic energy in a volume regionThe electromagnetic ripple torque is computed over the ripple torque period versus the rotor angular position Tem,q. The mean value “Tem, mean” is computed4.2 Mechanical ripple torque based on Park’s modelThe mechanical ripple torque must be computed at the base speed.First, we compute the electromagnetic torque “Tem, Park” with Park’s model: Then, the iron loss torque, the mechanical loss torque and the additional loss torque are subtracted from “Tem, Park “ to get the corresponding mean value of the