METHOD AND APPARATUS FOR EVALUATING NVH CHARACTERISTICS OF MECHANICAL SYSTEMS
First Claim
1. An apparatus for evaluating at least one NVH characteristic of a mechanical system including a torque-transmitting assembly having a drive member and a driven member drivingly engaging said drive member;
- said torque-transmitting assembly being characterized by a transmission error between said drive and driven members;
said apparatus comprising;
a supporting member mounted to a casing for rotatably supporting said drive member and being axially movable relative to said casing so as to selectively adjust said transmission error; and
an actuator assembly operatively associated with said supporting member for selectively adjusting position of said supporting member relative to said casing in order to selectively control said transmission error.
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0 Petitions
Accused Products
Abstract
A method and apparatus for evaluating NVH characteristics of a mechanical system including a torque-transmitting assembly having drive and driven members drivingly engaging each other. The torque-transmitting assembly is characterized by transmission error between the drive and driven members. The method comprises the steps of measuring a parameter representing NVH characteristics of the mechanical system during operation thereof upon a predetermined test cycle so as to obtain at least one NVH characteristic corresponding to at least two discrete values of the transmission error. The apparatus comprises a supporting member mounted to a casing for rotatably supporting the drive member and being axially movable relative to the casing so as to selectively adjust the transmission error, and an actuator assembly operatively associated with the supporting member for selectively adjusting position of the supporting member relative to the casing in order to selectively control the transmission error.
12 Citations
33 Claims
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1. An apparatus for evaluating at least one NVH characteristic of a mechanical system including a torque-transmitting assembly having a drive member and a driven member drivingly engaging said drive member;
- said torque-transmitting assembly being characterized by a transmission error between said drive and driven members;
said apparatus comprising;a supporting member mounted to a casing for rotatably supporting said drive member and being axially movable relative to said casing so as to selectively adjust said transmission error; and an actuator assembly operatively associated with said supporting member for selectively adjusting position of said supporting member relative to said casing in order to selectively control said transmission error. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 28, 29, 30)
- said torque-transmitting assembly being characterized by a transmission error between said drive and driven members;
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20. A method for evaluating NVH characteristics of a mechanical system including a torque-transmitting assembly having a drive member and a driven member drivingly engaging said drive member;
- said torque-transmitting assembly being characterized by a mounting distance defined as a distance between datums of said drive and driven members;
said method comprising the steps of; setting up said mounting distance of said torque-transmitting assembly to a first value; operating said mechanical system upon a predetermined test cycle with said mounting distance adjusted to said first value; measuring at least one parameter representing NVH characteristics of said mechanical system during the operation thereof upon said predetermined test cycle so as to obtain a value of said at least one parameter corresponding to said first value of said mounting distance; setting up said mounting distance of said torque-transmitting assembly to a second value; operating said mechanical system upon said predetermined test cycle with said mounting distance adjusted to said second value; and measuring said at least one parameter during the operation thereof upon said predetermined test cycle so as to obtain a value of said at least one parameter corresponding to said second value of said mounting distance. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- said torque-transmitting assembly being characterized by a mounting distance defined as a distance between datums of said drive and driven members;
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31. A method for evaluating NVH characteristics of a mechanical system including a torque-transmitting assembly having a drive member and a driven member drivingly engaging said drive member;
- said torque-transmitting assembly being characterized by a transmission error between said drive and driven members;
said method comprising the steps of;setting up said transmission error of said torque-transmitting assembly to a first value; operating said mechanical system upon a predetermined test cycle with said transmission error adjusted to said first value; measuring at least one of said NVH characteristics of said mechanical system during the operation thereof upon said predetermined test cycle so as to obtain a value of said least one of said NVH characteristics corresponding to said first value of said transmission error; setting up said transmission error of said torque-transmitting assembly to a second value; operating said mechanical system upon said predetermined test cycle with said transmission error adjusted to said second value; and measuring said at least one of said NVH characteristics of said mechanical system during the operation thereof upon said predetermined test cycle so as to obtain a value of said least one of said NVH characteristics corresponding to said second value of said transmission error. - View Dependent Claims (32, 33)
- said torque-transmitting assembly being characterized by a transmission error between said drive and driven members;
Specification